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Our Solar Thermal heating system uses the power and energy captured by solar panels to heat your water.
We start by installing flat collector panels on your home, which will capture the sun's rays and convert them into heat.
When we think of wood burning stoves, we may think of something very rustic or old fashioned and many people simply don’t think it’s possible to have one anymore (unless you have a cottage somewhere).
Assuming all goes well on the bureaucracy end of things, let’s look at wood burning stove installation! Most of the installation of a wood burning stove is more to do with preparing the area than the actual stove.
As you can see, it’s usually quite possible to have a wood burning stove or small furnace in your home, so long as you are careful with your installation and make sure you build in such a way that you have easy access to a chimney or at least a chimney flue to build into!
Clearview Plumbing and Heating is a Calgary Plumbing and Heating company based in Calgary, Alberta, Canada which is available round the clock to carry out any type of Calgary Plumbing or Heating job. Click here for our Calgary Furnace $99 tune up special – please note that this offer is subject to change any time.
Click here for a list of our different Plumbing and Heating specials – Please note that these specials are subject to change at any time.
To answer them, we turned to Sam Rashkin, Chief Architect for the Energy Department’s Building Technologies Office. The next cheapest thing to do is make small upgrades, like wrapping your water heater with an insulation blanket if it isn’t currently insulated and installing low-flow fixtures in your sinks and showers. A more expensive way to save hot water is to add a heat trap configuration to the hot water plumbing line exiting the heater — this minimizes heat losses because hot water is more buoyant and continually flows up. Eric Hunt on Facebook asks: Is an on-demand hot water heater more energy efficient than a tank water heater? SR: It sounds like you’re confusing an on-demand water heater with an instantaneous (or tankless) water heater. I believe you were asking about instantaneous hot water heaters, which are more efficient than storage tank water heaters. George Voll on Facebook asks: Is a hybrid heat pump water heater more efficient than an on-demand gas or electric water heater?
SR: It depends on a number of factors, including the amount of water used, frequency of use, and how electric and gas prices compare in your area. SR: Generally, the most efficient water heater temperature is the lowest temperature to provide the necessary hot water. SR: Solar thermal water heating (using heat from the sun to warm water) is the most cost- and energy-efficient renewable energy alternative for water heating.
SR: The ENERGY STAR products website is the best source for finding information on energy-efficient water heaters and other replacement options for your oil furnace.
Also known as solar domestic hot water systems, solar water heaters bring important savings to a home by generating hot water for practically free. Solar water heaters usually include two major components: solar collectors and storage tanks.
Solar water heater systems can be either active, meaning the water circulates through pumps, or passive. Passive solar water heaters are considered to be less effective as the active ones, but they are cheaper and can last longer. Most solar water heaters need a backup system for days with clouds or times when the demand of hot water is higher. As for the solar water heaters, do not forget that proper installation is a must, so it is better to hire a thermal systems contractor to install your solar water heater, as there are many factors that influence this process. Combining space heating and water heating in one unit can provide high efficiencies for both applications, and often costs less than buying an individual space heater and separate water heater.
If winter heating bills set more records than freezing temperatures and snowfall, maybe it's time to replace or upgrade that inefficient heating system. When something must be done about an old or inefficient heating system, the challenge can be daunting.
As this guide points out, there are a number of factors that determine the right choice for a particular home.
It is counterproductive to invest in a new or improved heating system, only to allow much of its heat to escape. Contractors often put in a furnace with a higher capacity than is really needed for the home.
This is why it is very important to make sure the contractor does proper load and sizing calculations, instead of using a rule of thumb that includes a margin of safety that oversizes for most homes.
Most heating systems use either combustion fuels--natural gas, propane, oil, or wood--or electricity. Check local prices to see if energy will be saved by switching energy sources or making modifications to employ more than one energy source. Forced warm air is by far the most common type of central heating system used in North American homes (See Figure 1).
Instead of circulating warm air throughout a home, a hydronic system pumps hot water from a boiler through pipes and radiators and then returns it to be reheated and recirculated. Hot-water heating systems once used large wrought-iron pipes and massive cast-iron radiators, but for many years now installers have been using smaller copper piping, slim baseboard heaters, and smaller, more efficient boilers (see Figure 2). Some advantages of hydronic systems are the ability to regulate the temperature in each room and to use the same boiler for domestic hot water. It is usually more economical to stay with an existing distribution system than to switch to another, unless major modifications or repairs are needed. All fuel-burning systems (natural gas, oil, propane, wood) lose some heat in the combustion process. Electric space heating equipment using resistance heating is typically defined as being 100% efficient, because all of the electrical energy used is converted into heat and there are no combustion losses through a chimney.
Heat pumps, another type of electric heating system, can have efficiencies higher than 100%, since they transfer and upgrade heat from the outside air or ground, thereby increasing their heat output without losses. AFUE and HSPF measure seasonal efficiency, which takes into consideration not only the normal operating losses, but also the fact that most furnaces rarely run long enough to reach their steady-state efficiency, particularly during the milder weather at the beginning and end of the heating season. Be sure to look for the seasonal efficiency--the AFUE or HSPF rating is most useful to a homeowner because it provides a good indication of how much annual heating costs will be reduced either by improving existing equipment or by replacing it with a higher efficiency unit.
Capital costs of heating systems can be as low as $500-$1,000 for baseboard heaters in a small house, and as high as $12,000 for a heating, cooling, and water-heating ground source heat pump in a large home. The Heating Cost Worksheet and Heating Equipment Guide can help narrow the choices for either upgrading or replacing a heating system. It is important to hire a contractor who will size and install the equipment properly, so that it will operate efficiently.
To get an estimate of how many years it will take for the investment to pay off, divide the costs of buying new equipment by the energy savings per year calculated in the worksheet. The amount of heat a piece of equipment can deliver is called its capacity, while the amount of energy actually used is called consumption.
When converted to heat in an electric resistance heating element, one kWh produces 3,413 Btu of heat. This article is part of a series om energy-effiecient remodeling, which is being funded by the Environmental Protection Agency and the Department of Energy. The combustion of natural gas produces heat and some by-products, including water vapor and carbon dioxide.
Mid-efficiency gas furnaces usually have a naturally aspirating burner like conventional units. Condensing gas furnaces (see Figure 4) are the most energy efficient furnaces available, with seasonal efficiencies between 90% and 96%.
In general, the same technologies and comments apply to propane as to natural gas, with slight differences in the efficiencies. Condensing gas-fired boilers in hydronic heating systems can have difficulty condensing in practice, because the return water temperature is above the dew point of the flue gases. Heating costs may be lowered slightly by reducing the amount of combustion air drawn from inside the house. An oil furnace is similar to a natural-gas furnace, but the dilution device is a barometric damper--a plate that acts as a valve on the side of the flue pipe. Many noncondensing mid-efficiency oil furnaces use an even more efficient high-static retention burner (see Figure 5).
Mid-efficiency oil furnaces can have seasonal efficiencies of 85%-89% and use 25%-30% less fuel than a conventional oil furnace producing the same amount of heat. While a natural-gas condensing furnace has a significant efficiency advantage over a mid-efficiency gas furnace, a condensing oil furnace is only marginally more efficient than a well-designed mid-efficiency oil furnace.
Some newer oil furnaces have optional sealed combustion to save a bit more energy and prevent backdrafts and spillage. An oil-fired boiler uses the same types of burners as an oil-fired forced-air furnace, although the boiler itself is often somewhat smaller and heavier (see Figure 6). Flame retention head burners do a much better job of mixing the air and fuel than old cast-iron head burners. In a central electric furnace, house air is blown over electric heating coils and then distributed through ductwork around the house. Many forced-air systems use a heat pump instead of an electric furnace because of its high efficiency and capability to air-condition.
At the lower end of the product range, both air and ground source heat pumps have single-speed reciprocating compressors.
A homeowner who has an electric furnace and wants to stay with electricity as an energy source may be able to reduce heating costs by up to 50% by converting to an air source heat pump, and by 65% by converting to a ground source heat pump.
In many houses that have been well insulated and air sealed, the space-heating load is so low that it is difficult to justify the expense of a high-efficiency furnace.
An integrated condensing gas-fired space- and water-heating system can have an efficiency of over 90% for both applications. Mid-efficiency gas-fired combined systems also exist, but their overall efficiency potential is lower than that of the condensing systems. Mid-efficiency oil-fired integrated systems, based on a low-mass boiler, high static burner, and external water storage tanks, offer high seasonal efficiencies--83%-84% for both space and tap water heating.
Many people use small space heaters to heat their most-used rooms, so that electric baseboard heaters or an inefficient central heating system can be used sparingly.
Some space heaters can also be very effective radiant heat sources, warming solid bodies (like people) in their line-of-sight without necessarily having to heat up all the air.
Direct-vent gas wall furnaces are self-contained heating appliances that draw in combustion air and discharge by-products through a vent to the outside. Wall furnaces are compact and less expensive than central furnaces, but they are generally less efficient.
Room heaters are self-contained and have heat outputs much lower than those of central furnaces.
If electricity rates are low, an electric space heater can minimize use of an inefficient central system. A new type of heat pump, called a ductless minisplit, is ideal for retrofit to homes with hydronic or electric-resistance baseboard heating in areas where electricity costs are reasonable. Using one of the UK’s leading solar panel brands, our solar thermal heating product is one of the most effective in the market. Meanwhile, a solar tank within your home is attached to the system to create the hot water your family needs, whether the sun is shining or not!Our team of technicians will be happy to discuss the solution that best suits your home and needs – whether it’s simply a solar panel set to give you solar-heated water or a more sophisticated design that’s integrated into your heating system for both heating and hot water.
But there are around 3 million Canadians-ten percent of the current population) who use wood burning stoves regularly!
This is because the area where the stove will sit needs the right sort of setting or else you risk burning your walls or floor, causing irreparable damage. Measure out the area you want and then cut off the carpet or cut away the hardwood or laminate.


This level of clearance is the absolute minimum if you want to protect your walls from damage, even with the heat shield and if you can get away with it, a bit more space at least between the heat stove and the wall is a good idea.
Your wood burning stove should be placed where there is either an existing chimney flue or where you can build one so that your stove can vent properly and bring in air to keep the fire burning longer.
With care and patience, you can enjoy the benefits of a wood burning stove to supplement your current heating and to make a room cosier. As soon as a technician becomes available we'll call you a half hour ahead of time and let you know that he's on his way. During 2014, experts from the Department and our National Labs will be answering your energy-saving questions and sharing their advice on ways to improve your home’s comfort. It comes as no surprise that water heaters account for nearly 17 percent of a home’s energy use, consuming more energy than all other household appliances combined.
Through the Challenge Home program, Rashkin helps bridge the gap between federal research and the housing industry, working with homebuilders to use more energy-efficient technologies and building methods. Another behavioral change that has a big impact is setting your water heater to vacation mode when you’re away for an extended time. Lastly, the most costly upgrade is to replace an old inefficient hot water heater with a new high-efficiency option.
While they sound similar, a tankless water heater heats water in one pass (or instantly) without a tank and doesn’t have standby energy losses that are associated with storage water heaters.
This is because they eliminate much of the energy use for keeping a tank fully heated (note: “much” is used because instantaneous systems now have a small electric heated tank to avoid what is called the “cold water sandwich” effect), and they are usually rated at higher operational efficiencies. However, generally the heat pump water heaters that are more efficient have comparable efficiency to instantaneous gas water heaters and are much more energy efficient than instantaneous electric water heaters.
With that said, it is important to keep in mind that the longer the shower, the more hot water consumed, and the higher the hot water heating bill. For most homes, that is 120 degrees F because dishwashers now have built-in heating boosters to raise the temperature to the necessary 145 degrees F for sterilizing dishes.
This is because renewable electric systems, like solar electric and onsite wind power, have substantial energy loss when converting electricity to heat. There are three types of solar collectors: flat-plate collectors, integral collector-storage systems and evacuated-tube solar collectors.
There are two possibilities for active solar water heaters: direct or indirect circulation systems. Passive systems feature two types: integral collector-storage passive systems and thermosyphon systems.
For example, you should think about the economics of this kind of system, evaluate the solar resource of your house, establish the right size, estimate the costs and check local regulations and codes regarding this matter.
On that website, you will find useful information that will teach you how to use the latest innovations to your best advantages. The decision will affect comfort, energy costs, and the air quality and safety of a home for years to come. Costs will include the price of the unit and distribution system, installation charges, and operating expenses.
This is partly to avoid callbacks from unhappy customers, or to compensate for leaky ducts or poor house insulation. It doesn't make sense to pay more for a bigger furnace or boiler, yet heat the house less efficiently. It is possible to choose a combination of these conventional sources, or even other alternatives, such as solar energy. Table 1 gives the energy content for the various energy sources, per unit in which they are commonly sold.
They consist of a heating unit, a distribution system, and controls, such as thermostats, that regulate the system. Air ducts and registers distribute heat from a central furnace, providing heat very quickly.
Air coming from the heating registers sometimes feels cool (especially with certain heat pumps), even when it is warmer than the room temperature. Recently, plastic piping has been approved for use in some areas as an alternative to the more expensive copper pipes. However, the installed cost of hydronic systems is higher than that of forced-air systems, they can be slow to warm up, and there is no capability for central air conditioning, air filtering, or ventilation.
However, some homeowners with electric baseboard heating and high electricity rates will find that a switch to a central forced air or hydronic system is worth the investment. Heat is carried away in the combustion gases and in the warm air drawn out of the house through a chimney or vent. The efficiency rating of the equipment does not take into consideration the losses that took place in the production of the electricity and its transportation to the house, which account for its relatively high unit cost. Steady-state efficiency measures the maximum efficiency a furnace achieves after it has been running long enough to reach its peak level operating temperature. Since there are no furnace stores where the different makes and models can be examined and compared, it will be necessary to obtain manufacturer's literature from distributors or heating firms. Before deciding to buy, obtain firm, written bids from several companies on both the cost of upgrading existing equipment and the cost of buying and installing a complete new unit along with any other fittings and adjustments required.
This short lesson in heating terminology will make comparison shopping and the worksheet easier.
Heating units are manufactured and sold by their capacity; the monthly bills customers receive are for consumption. This is the amount that the gas meter registers and the amount that the gas utility records when a reading is taken. Propane, or liquefied petroleum gas (LPG), can be used in many of the same types of equipment as natural gas.
Several grades of fuel oil are produced by the petroleum industry, but only #2 fuel oil is commonly used for home heating. The furnace has a naturally aspirating burner, which means that air for combustion is drawn in from the surrounding area by the natural forces of hot air rising.
By closing off the vent during the off cycle, the damper prevents some of the warm household air from being drawn up the flue and lost to the outdoors. In a conventional gas furnace, such by-products are vented through a chimney, where a considerable amount of heat (both in the combustion products and in heated room air) also escapes. They do not have a continuous pilot, however, and instead of a draft hood, they are equipped with a powered exhaust--usually a built-in induced draft fan. They are called condensing furnaces because the combustion gases are cooled to the point where the water vapor condenses, releasing additional heat into the home. By installing a water-to-water heat exchanger and storage tank upstream of the boiler, the return water temperature can be brought below the dew point, flue gases will condense, and efficiency will improve significantly. One way to do this is to use outside air, brought in through piping directly to the burner. The damper isolates the burner from changes in pressure at the chimney exit by pulling varying quantities of heated room air into the exhaust. This type of furnace also features an improved low-mass combustion chamber (usually ceramic fiber) and passes the hot combustion gases through a superior heat exchanger that enables the circulating house air to extract more heat. Oil produces only half the water vapor of gas, and so has much less energy tied up in the form of latent heat; the furnace must work harder to condense less.
However, on a very cold winter's day, if the air is not warmed before reaching the burner, it could cool the fuel oil in some units, causing start-up problems. If the system is oversized (a properly sized oil burner should run 45 to 50 minutes per hour when the temperature outside is the lowest expected for the area), simply replacing the existing oil burner nozzle with a smaller one can downsize it.
Baseboards containing electric resistance heating strips are installed in each room and are individually controlled.
This type of furnace is much simpler than a fuel-fired one, because no combustion air or exhaust is needed.
A heat pump is an electrical device that extracts heat from one place and transfers it to another (see Figure 7). In the summer, it acts as an air conditioner, removing heat from the air inside the house and transferring it outside. A ground source heat pump uses the relatively constant temperature of the earth or groundwater or both as a source of heat in the winter (see Figure 8). Heat pumps with the highest SEERs and HSPFs invariably use variable or two-speed scroll compressors.
Actual dollar savings will vary depending on factors such as local climate, the efficiency of the current heating system, the cost of electricity, and the size and HSPF of the heat pump installed.
Piping for a ground source heat pump is usually run vertically in a deep trench (shown here) or horizontally in a shallow trench if there is enough space on the property. If it's time to replace the water heater as well as the space-heating system, integrating space and water heating in a single appliance can result in high efficiency and reduced costs.
Some integrated systems have even used a conventional gas-fired water heater as the basic energy generator, connecting it to a fan coil for warm air heating; however the result is a system with quite low overall efficiencies. Good examples are the new direct-vent gas fireplaces, advanced combustion wood fireplaces and portable electric infrared radiant heaters.
They are permanently attached to the structure of a building and are not connected to ductwork. They come in a variety of heating capacities and with efficiencies that range from 70% for a standard efficiency unit with a pilot light to 82% for a mid-efficiency unit with electric ignition and induced draft. Often they resemble new, freestanding wood stoves and are fired by wood, wood pellets, oil, or gas.
Portable electric room heaters are available as convection, radiant, and fan-assisted units, ranging from 500W to 1500W capacity. Inside, wall-mounted units can be installed in individual rooms, all served by one outdoor section. We appreciate that every family is unique and firmly believe that your solar thermal system must be the right choice for your home.Our skilled and certified technicians will ensure that the installation of your solar thermal system will cause little to no disruption to your daily routine, and it can typically be completed within 1 to 2 days! In order to avoid this, things like a heat shield and floor pad must be installed on the floor and walls. Then cut out your floor pad (usually made from pyrex since it stays solid under high heat) and fit it into the stove’s new floor home. Then install your furrings (the pieces which will hold up your walls), paying close attention to avoid the studs.
You may require the services of a wood stove technician at this point in order to ensure that your chimney will be put together safely.
Options include high-efficiency gas storage tank and instantaneous water heaters, heat pump water heaters and solar water heaters. On-demand systems use a pump that is activated by sensors or controls to circulate hot water to a bathroom or kitchen “on demand.” This ensures minimal wasted water and can be installed on any water heater to help to improve its efficiency. It is important to keep in mind that tankless water heaters require a larger gas pipe size because they apply so much more heat for instantaneous heating, and this could add significantly to installation costs.
Sinks only need 105 degrees F hot water for cleaning hands — localized tankless heaters below individual sinks should be set to that temperature. With solar thermal water heating, there are a multitude of options, and the best choice for you will depend on your local climate and architectural factors. How do I get help with these when I don’t know anything about my options and which brands would work best for my home?
Registration or use of this site constitutes acceptance of our Terms of Service and Privacy Policy. As for the storage tanks, in one-tank systems the back-up heater is merged with the solar storage in a single tank, while in two-tank systems the water is preheated by the solar water heater before entering the conventional water heater. For climates where freezing is not often, the direct circulation system is the right option because the water is circulated by pumps through the collectors then into the home. The difference between them is that the first one is built for areas where it freezes and the second one for a cooler climate.


Moreover, you should compare them with infrared heaters, and see which technology seems more efficient for you, to compare the advantages and disadvantages of the two types and determine what would be more suitable for you. Whatever the reasons for considering a new heating system--adding living space or replacing a system that is inefficient or just plain falling apart--this is a long-term investment, and it makes good economic sense to look carefully at energy efficiency. We will focus on the latter, keeping in mind that long after the last payment has been made on the new system, energy bills will keep coming in. Together, these factors determine how much heat must be put into the house by the heating system over the annual heating season. However, furnaces and boilers are most efficient when they have been running for a while, and since oversized furnaces can meet the demand for heat in a shorter time, they may never achieve their best efficiency. Thus a model that is a little larger than the house heat demand can be installed without suffering an efficiency penalty.
It also provides spaces to enter the local prices of energy sources available in your area. The system can also be used to filter and humidify the household air, to provide central air conditioning, and to circulate air for ventilation. Supply ducts bring hot air to the living space while return ducts return house air to the furnace. Also, if central air conditioning is already installed or if it is planned for the house, a forced air heating system is a sensible choice for heating, since the heating and cooling systems can share the ductwork.
The efficiency of the furnace or boiler is the percentage of heat output that is used in heating the home. Dividing the HSPF by 3.413 yields a seasonal Coefficient of Performance, which is similar to the AFUE for a furnace. This is an important standardized testing procedure that is also used by a service person to adjust the furnace. Certain energy sources may also have additional ongoing charges for administration, connection, and so forth. The local utility can provide information on the cost of purchasing or installing heating systems, and the estimated seasonal heating costs of different equipment. These should include changes to ductwork or piping and a final balancing of the heat supply to the house. It is stored as a liquid in a tank at the house, so it can be used anywhere, even in areas where natural gas hookups are not available. The heating capacity of electric systems is usually expressed in kilowatts (kW); 1 kW equals 1,000 W.
The gas and air burn, forming combustion gases, which give up heat across a heat exchanger and are exhausted to the outside via a flue pipe and vent.
So those planning to replace an existing system with a new gas furnace will choose one of the mid-efficiency or high-efficiency units discussed below. The newer designs have been modified to increase energy efficiency by reducing the amount of heated air that escapes, and by extracting more of the heat contained in the combustion by-products before they are vented. There is also some concern about the longevity of high temperature plastic pipe used to vent many of these mid-efficiency units.
About 3% less energy is tied up in the form of latent heat with propane systems than with natural gas. This is known as sealed combustion or direct vent and can prevent backdrafting--hazardous flue gas spillage--caused by exhaust fans or conventional fireplaces in airtight homes. In many houses, the quantity of air drawn through the barometric damper is much greater than the quantity required for combustion and can represent 10% to 15% of the total heat loss in the house. The barometric damper, with its large requirement for house air to dilute the combustion gases, has been eliminated in the most efficient of these designs. In addition, the condensate is much more corrosive than with natural gas, so the condensing oil heat exchanger must be made of special materials. Instead, most boilers require a circulating pump to push hot water around the house through the pipes and the radiator system. Reduct the nozzle only one size on a conventional cast-iron head burner, so as not to reduce the firing rate too much. Replacing the burner can increase the seasonal efficiency of an old oil-fired furnace by about 15%. Electric baseboards are cheap to install but expensive to run, although if used to heat only occupied rooms, they can be less costly than a central electric furnace. These units therefore have an efficiency rating of 100%, meaning that all of the heat created goes into heating the house air.
It transfers the heat by circulating a refrigerant through a cycle of alternating evaporation and condensation. In the winter, the heat pump operates in reverse, removing heat from the outside air or ground, and transferring it inside the house. Add-on heat pumps are designed to be used with another source of supplementary heat, such as a fuel-fired furnace. This allows it to maintain its output in cold weather and makes it more efficient than an air source heat pump, which must work harder as the air temperature drops.
For cooling, the Seasonal Energy Efficiency Ratio (SEER) of an air source heat pump ranges from a minimum of 9 to a maximum of about 16.
The overall purchase and installation cost may even be lower than for individual appliances, and the efficiency is high. This is less expensive than installing a central heat pump with ducts, or putting individual wall or window heat pumps in each room.
If you’d like to learn how to install a wood burning stove, either for total home heating or to supplement your current heating, you’re in the right place! Make sure the adhesive you use to stick the floor pad to the floor is also able to stay solid under heat. Then install your heat shield which should again be made from something like pyrex so that it can withstand high heat. On the other hand, for climates where it generally freezes, the indirect circulation systems are the recommended ones because it implies the use of a heat-transfer fluid through the collectors as well as of a heat exchanger. Finding resources for this type of information is not difficult, and there are reliable websites where information is properly organized under the shape of professional infrared heater reviews. This number, usually expressed as Btu per year, can be estimated by a competent heating contractor. Table 2 lists the typical seasonal efficiency of common heating equipment used with each energy source.
For example, if 80% of the heat value in the fuel is transferred to the house and 20% is lost, the furnace will have an AFUE (Annual Fuel Utilization Efficiency) of 80%. The other is that from now on winters will be more comfortable, and annual heating bills will set new records--for low costs! In the past, gas furnaces were often rated only on heat input; today the heat output is given. Consumption of propane is usually measured in gallons; propane has an energy content of about 92,700 Btu per gallon.
A kilowatt-hour (kWh) is the amount of electrical energy supplied by 1 kW of power over a 1-hour period.
A dilution device, known as a draft hood, isolates the burner from outside pressure fluctuations by pulling varying quantities of heated house air into the exhaust.
Because the flue gas temperature is low, plastic piping can be used for venting out the side wall of the house. This means that conventional and mid-efficiency propane furnaces can be expected to be slightly more efficient than comparable natural gas units. The burner is a high-pressure gun type, with a blower fan to help mix the oil and air for good combustion. For these reasons, a mid-efficiency oil furnace is a better bet than a condensing oil furnace.
The seasonal efficiency of old conventional boilers is similar to that of conventional furnaces (about 60%). Do not reduce the size below the minimum firing rate given on the manufacturer's rating plate.
Residential heat pumps are divided into two major groups: air source (air-to-air) systems, which draw heat from the air, and ground source (earth energy) systems, which draw heat from the ground or underground water. All-electric air source heat pumps come equipped with their own supplementary heating system in the form of electric-resistance heaters.
In ground source pumps, heat is removed from the earth through a liquid, such as groundwater or an antifreeze solution, upgraded by the heat pump, and transferred to indoor air. Basically, you should have a three piece shield: the floor pad and then two pieces on the walls on either side of the stove which do not connect to each other or to the floor and have enough clearance for the stove to ‘breathe’ safely. It involves measuring the house (including the windows), checking insulation levels, perhaps doing a blower door test, and running calculations to determine how much heat will be needed in that specific climate. Use the information in these tables and follow the Heating Cost Worksheet to determine savings in energy cost from switching heating equipment.
Ducts are also notoriously leaky, typically raising a home's heating costs by 20% to 30%. However, some of this savings potential can be lost if a conventional gas-fired water heater is connected to the same chimney. On the other hand, propane's lower hydrogen content makes it more difficult to condense the combustion products, so that propane-fired condensing furnaces will be 2%-3% less efficient than the same unit fired with natural gas. A conventional oil furnace with a cast-iron head burner has a seasonal efficiency about 60%.
The nozzle should be reduced at least one size or even more, and a ceramic fiber combustion chamber liner should be used.
A lot of energy is lost producing and transporting electricity to the house, and it shows up on the energy bill. In one coil, the refrigerant is evaporated at low pressure and absorbs heat from its surroundings.
Bivalent heat pumps are a special type, developed in Canada, that use a gas- or propane-fired burner to increase the temperature of the air entering the outdoor coil. During the summer months, the process is reversed: heat is extracted from indoor air and transferred to the earth through the groundwater or antifreeze solution. Once you have researched the infrared heater reviews, you can compare the two heating technologies and decide for yourself which one would best serve your need. Homeowners who are having a forced-air system put in should demand a tight duct system, and be willing to pay the contractor to install it properly. The water heater is still vented and now has a higher draft imposed upon it, increasing the heat loss through the water heater. Replacing the conventional burner with a flame retention head burner will save 10%-15% on the fuel bill. As with all forced-air systems, leaky ducts in a poor distribution system can lead to hefty additional heat losses. The refrigerant is then compressed en route to the other coil, where it condenses at high pressure. Electricity rates vary, but in most places a central electric furnace is the most expensive type of heating system to run. A problem with most air source heat pumps is that the heat output (and efficiency) drops with colder outside temperatures, exactly the opposite of what the house requires. Look for direct-vent gas fireplaces with radiation-transparent pyro-ceramic glass, intermittent ignition, good heat transfer to the house, an insulated outer casing, and an effective venting system to ensure safe removal of the combustion products.



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