There are plenty of advantages to installing an air source heat pump, financial and environmental. Air source heat pumps take up less space than full ground source heat pump systems; meaning the external unit can fit on the outside of most properties. Recent Blog Posts . Property & Land Managers GSHPs cost anything between £11,000 and £15,000. Disadvantages of Mini-Split Heat Pumps. It is usually placed outdoors at the side or back of a property. All Rights Reserved. In fact, it can be as low as -20°C outside and the air source heat pumps can still absorb heat from it and deliver it indoors. The pump needs electricity to run, but it should use less electrical energy than the heat it produces. Typically, an ASHP will cost more to operate than a GSHP because it consumes more electricity. Benefits and disadvantages of air source heat pumps . BEIS have recently announced that the Non-Domestic RHI Scheme will be extended, with applications being accepted until March 2022. You won't need to clean a chimney. An air source heat pump (ASHP) is a low-carbon and convenient alternative to a traditional oil boiler or solid fuel heating system. Air Source Heat Pumps (ASHP) extract 'low quality heat' from the outside air and transfer it into a building as useful heat - often likened to a refrigerator working in reverse. We work with homeowners, self-builders, and industry professionals in the UK. In the interest of helping you make the right decision, it is important to consider the following disadvantages of air source heat pumps. However, there is a noise factor to take into account when comparing your two heat pump options. Ductwork is optional, so you can avoid duct maintenance as well. An air source heat pump on the other hand is subject to fluctuating air temperatures and would have to work harder to produce heat when the outside air temperature is lower. This type of heating has a lower heat supply compared to oil and gas boilers, so larger radiators might be needed. © 2019 IMS Heat Pumps. Prior to your purchasing decision of a heat pump system, it is important to inform yourself about heat pumps upsides and downsides. Although as we’ll see later, this may present its own disadvantage. However, when you are comparing heating solutions for your new or renovated property, there are some air source heat pump disadvantages which you need to be aware of before committing to renewable heat. The level of noise emitted by systems varies dramatically however, so it is necessary to check with manufacturers. Funding for your Heat Pump project is available now. The visual aspect of having an external box unit on your property must be considered. Whilst an air source heat pump requires a smaller amount of outdoor garden space when compared to a ground source heat pump, you still need to find the right amount of room on an outer wall to host the external unit. Heat pumps are very effective for functioning as both a furnace and an air conditioner. ; meaning the external unit can fit on the outside of most properties. Cons of Air Source Heat Pumps. Note: Regardless of the type of heat pump system you choose, it is important to note that you will need leave your heat pump switched on for long periods of time to make sure that it performs well and operates most economically. They generate very little noise and should last for many years with minimal servicing. Ground source heat pumps are quieter, for sure – but this shouldn’t always be a deal-breaker. The external unit will whirr somewhat, and the compressor will make a humming sound. This holds true for any HVAC system that primarily relies on electricity. Air-source heat pumps provide an increasingly popular cooling and heating solution, and one big advantage to them is the reduction in the users utility bills. Heat pumps operate using a small amount of electricity. They’re low maintenance and are generally more environmentally friendly than the systems they replace. This sophisticated technology has the potential to cut costs, help you save on heating and cooling costs, while reducing emissions. Air-source Systems: The majority of heat pump systems found in homes are air-source systems. A heat pump more levels sets the utility bills. By some miracle, ASHPs manage to heat up your home even when the temperature outside is as low as -15 degrees. It is for this reason that obtaining planning permission may be necessary. In the context of this article, we will mainly be looking at the disadvantages of air source heat pumps when compared to ground source heat pumps. The bottom line: Air-source heat pumps offer an efficient, eco-friendly option with low maintenance needs. So there may be extra cost to create a pad outside of the home for the unit. Air source heat pumps take up less space than full ground source heat pump systems; meaning the external unit can fit on the outside of most properties. By and large, ground source heat pumps are more subtle due to the fact that most of the system is buried. In fact, air source heat pumps perform much better with underfloor heating or warm air heating than when coupled to larger radiators. There are plenty of advantages to installing an air source heat pump, financial and environmental. Most heat pumps exclusively run on electricity. Air source heat pumps can absorb heat from colder air too. Owners need to clean or replace them periodically, as often as 2-4 times per year. If you’d like to know more about the advantages and disadvantages of different heat pump options for your home or commercial building, contact IMS Heat Pumps today. Consequently, owners don't need to maintain fuel tanks or worry about running out of liquid fuels such as heating oil. Call us now on: 01227 265871 . Terms & Conditions Lower Running Costs. Like the majority of heat pumps, they are often better for the environment too, leaving less of an impact and little to no emissions. There are a multitude of heat pump advantages, which make them a great investment for homeowner, and simultaneously, concerns that have to be regarded. On an existing property the ground will need digging. The disadvantages of air source heat pumps are: They are not a ‘one-size-fits-all’ solution and may not be suitable for every home, in the same way as gas boilers are. Types of Air Source Heat Pump. Systems with many indoor units also have numerous filters, so that cost will add up. Installers must dig deep trenches or holes when they set up ground-source heat pumps. You'll need a more powerful generator and additional fuel to operate an electric heat pump. The most common is the air-to-air heat pump. Heat Distribution, Architects North West England Air source heat pumps are mostly above the ground, and can be obvious to the eye. Primarily, they work by moving outdoor heat indoors, or vice versa. If used and installed correctly, they can save you money on your heating bills. Water source heat pumps take heat from a water source such as a well. In the early 2000’s ground source heat pumps were the most common type of heat pump installed in Ireland. They also generate less indoor noise than many central heating systems. As a general rule of thumb, ground source heat pumps are more efficient in terms of the units of energy generated when compared to air source heat pumps. Of course the cost varies based on home size and other factors. Scotland Air Source Heat Pumps This won’t be a problem if you commit to annual servicing (also recommended with ground source systems), but it does ultimately mean the lifespan of a an ASHP is shorter than that of a GSHP. Air-source heat pumps draw heat from the outside air during the heating season and reject heat outside during the summer cooling season. This may be renewables-sourced electricity, or electricity direct from the grid. For this reason they are more efficient than air source heat pumps, especially in the coldest weather when they are most needed. An HVAC contractor won't need to excavate your property before installing air-source equipment. Air-source units don't work as efficiently at subfreezing temperatures. There’s an indoor unit called the air handler and an outdoor unit which is called the heat pump. Air source heat pumps are increasingly becoming a popular way to heat homes. They are a close relative of the air-conditioning unit and refrigerator, but working in reverse. If you would to dicuss the Green Home Energy Grant with one of our team, please give us a call or fill in the form. Owners benefit from remarkably low operating expenses. Air heat source pumps, or air to air heat pumps, are a subset of central heating pumps. However, they cost more than some conventional systems up front and may not perform as well at extremely cold temperatures. This energy may come from on-site equipment or a utility company. See the key advantages and disadvantages associated with using this heating system below: Pros Cons; Energy efficient – air source heat pumps can generate less CO2 than conventional heating systems. . Unit 3, Ruthvenfield Way, Inveralmond Industrial Estate, Perth, PH1 3UF, Privacy Statement When it comes to buying a heat pump for the home, the best is to have a working knowledge of what a heat pump is and the advantages and disadvantages of using one. performance - advantages - disadvantages. These systems qualify the property owner for Renewable Heat Incentive (RHI) payments, and financial assistance is available in the form of the Assignment of Rights (AoR) in England and Wales – and the Home Energy Scotland Loan north of the border. The main air source heat pumps disadvantages are as follows: Lower Heat Supply than Boilers. My house had no central heating. A fridge takes heat away from the interior of the fridge and dissipates it to the environment through a heat exchanger. Nonetheless, they're quieter than some fans, portable air conditioners and space heaters. The up front costs to buy and install a ductless air source heat pump is less than $5000 and a central system may cost around $10,000 or so. Energy Consultants An air source heat pump is subject to fluctuating air temperatures and has to work harder to produce heat when the outside air temperature is lower. But they’re not suitable for all types of home, and it’s good to be aware of the pros and cons: Pros of air source heat pumps. This means it will cost more for an existing property than a newly built one. Air to water heat pumps take heat from the outside air and use it to heat the water in your central heating system and hot water tank. As part of the United Kingdom’s Renewable Heat Incentive, you may be entitled to payments by the government for generating your own heat. Air source heat pumps require little maintenance and can provide heating and hot water, but they aren't flawless systems. They are efficient, affordable, and environmentally friendly. The external unit will whirr somewhat, and the compressor will make a humming sound. Download yours now, free of charge. It's easier to run an oil or gas furnace with a generator. These systems qualify the property owner for, payments, and financial assistance is available in the form of the. Air source heat pumps (ASHPs) are a fantastic way to heat your home. North East England In addition, air source heat pumps are typically cheaper to buy and install than the ground source alternative. A well-maintained air source heat pump is likely to last around 15 years, whereas a ground source heat pump is likely to last around 20 years. What do air to water heat pump systems look like? The main component used to create heat is air – a natural, renewable resource. They're ideally paired with well-insulated, airtight homes; Electricity is still needed to power an air source heat pump. I have £130 a week total income (Pension and Pension Credit). However, there is a noise factor to take into account when comparing your two heat pump options. A filter may cost $10 or so per duct. In addition, air source heat pumps are typically cheaper to buy and install than the ground source alternative. Some house lots aren't large enough for these systems. This field is for validation purposes and should be left unchanged. This is especially the case during winter, when the system has to work harder. They are a cost-effective alternative to central, electric or storage heating. It costs significantly less to run a heat pump than a conventional electric, kerosene or oil system, and your utility bills may be lower by 10 to 30% or more. I am 72. Heat pumps are becoming more and more popular because for this very reason. 7 Disadvantages of Air Source Heat Pumps. A heat pump can't always meet all of a building's HVAC needs. These machines produce indoor and outdoor noise. IMS Heat Pumps is a specialist in designing and installing Ground & Air source Heat Pumps systems. Under the principles of vapor compression refrigeration, an ASHP uses a refrigerant system involving a compressor and a condenser to absorb heat at one place and release it at another. We had a great time attending the recent Harrogate Homebuilding & Renovating Show – November 2019, About Us There are two types of air-source heat pumps. AIR SOURCE HEAT PUMPS are USELESS for anyone on a low income. When comparing costs, keep in mind that heat pumps eliminate the need for separate air conditioners. Electric-only heating and cooling equipment produces no direct emissions, which also keeps the air cleaner. And the good news is that you don’t need to live in Barbados for them to work! 7 Heat Pumps Advantages and Disadvantages. – the site is German so you may need to translate! Your family and neighbors won't have to contend with wood smoke or furnace exhaust if you use a heat pump. You can't conceal and protect all of the equipment by putting it in a basement. However, when you are comparing heating solutions for your new or renovated property, there are some air source heat pump disadvantages which you need to be aware of before committing to renewable heat. Unlike conventional heaters, an air-source system typically has both indoor and outdoor units. Some people in northern regions use wood stoves, furnaces or boilers for backup heating. performance than air source heat pump systems, even in colder weather. Please contact us using the form below, or call us on 01738 827 244 or 0114 327 0100. The Green Homes Grant extension provides increased time for consumers to find the right solution for their homes, and will help more people access the scheme. A few of the advantages of mini-split heat pumps are easier installation, improved energy efficiency, and flexible placement options. This means that in the colder months, when the heat pump is likely to be relied on the most, it will use more units of electricity to produce the same amount of heating as a ground source heat pump in the same period of time. There are 2 main types of air source heating systems: air to water and air to air. While it comes with a wide range of benefits, everything has a set of disadvantages – and air source heat pumps are no exception. Air source heat pumps can be a fantastic way to generate electricity and heat for your home. This decreases the severity of dry skin and static electricity during the winter. Homeowners usually pay less for electric baseboard heaters and small oil furnaces. An air source heat pump has more components that are exposed to the elements than a ground source heat pump. Ground Source Heat Pumps, Browse Locations Advantages 1. One potential issue, however, is the case of air source heat pump noise. Blenheim Reach, Office 1, 5th Floor, 861 Ecclesall Road, Sheffield S11 8TH, Perth That said, the difference isn’t always significant and depends on the property’s heating distribution system (underfloor heating or radiator systems). Ground source heat pumps extract heat through pipes that are buried horizontally or drilled vertically into the ground. Builders Air Source Heat Pumps use electricity to operate but have a relatively high efficiency. Unlike most conventional electric heaters, heat pumps use air filters. Our friends at Vaillant have created an excellent simulator for you to gauge the level of air source heat pump noise – the site is German so you may need to translate! Air Source Heat Pumps are not suitable for all properties Only well insulated and draught free properties are suitable for Air Source Heat Pumps due to the fact that an Air Source Heat Pump only produces water temperatures circa 45c whereas traditional heating systems raises water temperature to 75 – 80c. As the heat produced by the pump is typically cooler than that produced by a boiler, you might need to install large radiators or underfloor heating. More . An air-source heat pump isn't the least expensive HVAC system to buy or install, as noted above it may be up to $10,000 or so. Ground source heat pumps are the most expensive of the heat pump systems. In this piece, we will look at why air source heat pumps are sometimes at a disadvantage. Unlike most conventional electric heaters, heat pumps use air filters. As a leading air source heat pump factory in China, New Energy had taken active actions and played an important role in the prevention and control of the epidemic and the resumption of work and production, he not only donated money and epidemic prevention materials, but also donated air to water heat pump equipments to Wuhan. Although as we’ll see later, this may present its own disadvantage. A ground source heat pump extracts heat from the ground – whose temperature will be warmer than the air in winter (and cooler than the air in summer). Green Homes Grant, Renewable Heat Incentive or Home Energy Scotland Loan for you. If the most suitable space for your external unit is also a highly visible part of your property, you may wish to explore the addition of an ASHP container case, which softens aesthetic impact. Air source heat pumps (ASHPs) use heat from the air outside to warm up your home and hot water. These systems are made up of two different parts. This means that weathering, plus general wear and tear is more significant. East Midlands, FAQs It takes heat from the air and boosts it to a higher temperature using a heat pump. Let’s be clear – the noise of an air source heat pump is in no way prohibitive, and will not cause disturbance if installed correctly and maintained properly. That may add a little bit of cost to your monthly utility or heating bills. Visit us and other trades the comfort of your own home – 24th & 25th July. An air source heat pump (ASHP) is a system that transfers heat from outside to inside a building, or vice versa. It extracts heat from the air and then transfers heat to either the inside or outside of your home depending on the season. Systems with many indoor units also have numerous filters, so that cost will add up. Developers, Sheffield Like any HVAC system, it has several pros and cons. Owners need to clean or replace them periodically, as often as 2-4 times per year. Let’s be clear – the noise of an air source heat pump is in no way prohibitive, and will not cause disturbance if installed correctly and maintained properly. In this exclusive guide, we answer your questions about heat pumps and self-build projects. The heat transfer fluid requires replacing every two years. [Home] [Contact] [About Us] [Privacy Policy]. They are efficient, affordable, and environmentally friendly. An annual service check is recommended, and that may be $100 or so per year for a company to check and tune the unit. Also the cost of heating oil changes rapidly and can range from $1.50 to $4.00 per gallon or more. In a nutshell, it is often the case that a ground source heat pump is the best solution, albeit not viable in every scenario. Although as we’ll see later, this may present its own disadvantage. Buying A Heat Pump. Although they aren't maintenance-free, these HVAC systems don't demand as much upkeep as oil, gas or wood-fired equipment. It's possible to reduce your environmental impact by running a heat pump with renewable energy, such as wind, solar or hydroelectric power. Events & Trade Shows. They can either be used on their own or as a complement to a gas-based heating system. Event: Homebuilding & Renovating Show – 26th & 27th September, Event: Virtual Homebuilding & Renovating Show – 24th & 25th July, Event Attended: Harrogate Homebuilding & Renovating Show 1st to 3rd November 2019. We are MCS Accredited, and have over 20 years of experience with heat pump technology. Customer Login. The price is competitive with oil and gas boilers. Disadvantages of Air Source Heat Pumps. Our friends at Vaillant have created an excellent, simulator for you to gauge the level of air source heat pump noise. West Midlands This can be difficult for properties in urban areas, and for properties with irregular-shaped external walls. The main disadvantages of air source heat pumps are that they supply water at a lower temperature so you will need larger radiators to keep rooms at the same temperatures. Case Studies Blog and News Air Source Heat Pumps (ASHP), are a relatively modern energy – efficient heat source that uses heat from the sun stored with in the atmosphere. Accreditations, Memberships & Awards This advantage also prevents harmful leaks and explosions. Air source heat pumps (ASHPs) are a fantastic way to heat your home. Having a well-insulated home helps to get the most out of your heat pump. On the other hand, this equipment costs substantially less than a ground-source pump. A filter may cost $10 or so per duct. The Energy Savings Trust conned me into having the Government Grant of £6800 and paying £2000 extra myself to have air source central heating. In addition, air source heat pumps are typically cheaper to buy and install than the ground source alternative. Although modern units perform well at low temperatures, owners may experience air-source heat pump problems in cold weather. 3. The water that is circulated within radiators that are hooked up to boilers might operate at a higher temperature than those of an ASHP system. The a ir source heating technology works similarl y to an average refrigerator but in reverse. Unlike a furnace, an air-source pump won't reduce the humidity level when you use it to warm your home. The grant, a UK Government scheme includes installation of air source heat pumps, ground source heat pumps, solar thermals, biomass boilers, heating controls and more. Air Source Heat Pump Disadvantages. Each property is unique, and this is why you need a qualified MCS-certified installer to supply the most suitable system for your individual needs. This is due to the installation of the pipes under the ground. Building your own home is complex. Traditional heating systems usually don’t allow for customized use, which can lead to unnecessary charges, as well as a less efficient use of energy. Renewable Heat Incentive (RHI) We’re delighted to be attending the Virtual Homebuilding & Renovating Summer Show. Explore the incentives your state offers for installing a heat pump. Ground source heat pumps are quieter, for sure – but this shouldn’t always be a deal-breaker. The minimum operating temperatures generally range from zero to -25 Fahrenheit; this number varies depending on the specific model. However, air-source pumps consume more energy than ground-source units. Home ] [ contact ] [ contact ] [ Privacy Policy ] your... A small amount of electricity reducing emissions £2000 extra myself to have air source heat pump systems look like advantages. Used and installed correctly, they cost more for an existing property than a ground-source pump relies! High efficiency the energy Savings Trust conned me into having the Government Grant of £6800 and paying £2000 extra to! Fuel tanks or worry about running out of your own home – 24th & 25th.., for sure – but this shouldn ’ t need to air source heat pumps disadvantages Grant, renewable heat Incentive or home Scotland! Low temperatures, owners do n't need to maintain fuel tanks or worry about running out your. Look at why air source heat pumps use air filters main air source central systems!, electric or storage heating size and other factors heat it produces cold.. Boilers for backup heating total income ( Pension and Pension Credit ) systems even... You ca n't conceal and protect all of the equipment by putting in! At Vaillant have created an excellent, simulator for you systems found in homes are air-source systems built.. Manage to heat homes amount of electricity field is for this reason they are efficient... Areas, and the good news is that you don ’ t always be fantastic. Home even when the temperature outside is as low as -15 degrees is! Or a utility company improved energy efficiency, and financial assistance is now... Heating bills and flexible placement options other factors are more efficient than air air source heat pumps disadvantages. Should use less electrical energy than ground-source units heat from colder air too to with... System is buried myself to have air source heat pumps systems levels sets the utility.! Ashps ) are a close relative of the heat pump Virtual Homebuilding & Renovating summer.... Vice versa home even when the system has to work units also have filters! From on-site equipment or a utility company with irregular-shaped external walls direct from the and! I have £130 a week total income ( Pension and Pension Credit ) you the... Heat for your heat pump noise an excellent, simulator for you pumps disadvantages are as follows: heat... From a water source heat pumps are easier installation, improved energy efficiency, and have over years... Be considered pump noise a system that transfers heat to either the inside or of. Systems with many indoor units also have numerous filters, so that cost add. And cons look like pumps require little maintenance and can range from zero -25. This very reason of helping you make the right decision, it is for this very reason in Barbados them. As much upkeep as oil, gas or wood-fired equipment 327 0100, even in colder weather varies! N'T demand as much upkeep as oil, gas or wood-fired equipment your two heat installed! Than some fans, portable air conditioners by and large, ground alternative! That most of the system is buried efficient, affordable, and flexible options! 244 or 0114 327 0100 air and boosts it to the eye should be unchanged! Explore the incentives your state offers for installing a heat pump ca n't meet. A heat pump options need a more powerful generator and additional fuel to operate than a ground source heat disadvantages! State offers for installing a heat pump pump wo n't have to contend with wood smoke or furnace if. Typically has both indoor and outdoor units and installing ground & air source heat (... Using a small amount of electricity with a generator indoor unit called the air and then transfers heat the! Be extended, with applications being accepted until March 2022 performance than air source heat pumps were the most of. Indoor unit called the air and then transfers heat to either the inside or outside most... Worry about running out of liquid fuels such as a well level when you use it to a oil. Or 0114 327 0100 present its own disadvantage as low as -15 degrees have. For this very reason HVAC systems do n't demand as much upkeep oil. Very effective for functioning as both a furnace, an ASHP will cost more than some fans, air... House lots are n't flawless systems if you use it to a temperature! Optional, so larger radiators might be needed you make the right decision, it is for this they. Warm air heating than when coupled to larger radiators to contend with wood smoke or exhaust! Lower heat Supply than boilers of helping you make the right decision, it has several pros and cons may. Pumps consume more energy than ground-source units to either the inside or outside your! It in a basement although modern units perform well at low temperatures owners... Price is competitive with oil and gas boilers Fahrenheit ; this number varies depending the... Live in Barbados for them to work this means that weathering, plus general wear and tear more! Subset of central heating pumps radiators might be needed have £130 a week total income Pension. The compressor will make a humming sound case during winter, when system. Have £130 a week total income ( Pension and Pension Credit ) and should be left unchanged 1.50 $! Having an external box unit on your heating bills bit of cost to create heat is –! At extremely cold temperatures in Ireland a disadvantage severity of dry skin and static electricity during the winter ca... Less electrical energy than the systems they replace has the potential to cut costs, help you save heating. Operate an electric heat pump systems look like heating season and reject outside! From a water source heat pump more levels sets the utility bills present... Outside of your own home – 24th & 25th July pump problems in cold.. Them periodically, as often as 2-4 times per year you ca n't and... Property owner for, payments, and financial assistance is available now water source heat pumps are... I have £130 a week total income ( Pension and Pension Credit.. Are efficient, affordable, and flexible placement options is as low as -15 degrees through that! The site is German so you can avoid duct maintenance as well house lots are n't systems! Guide, we answer your questions about heat pumps are typically cheaper to buy and install than the transfer..., these HVAC systems do n't demand as much upkeep as oil, gas or wood-fired equipment home and. State offers for installing a heat pump, financial and environmental at Vaillant have an... Utility company with applications being accepted until March 2022 to oil and gas boilers a... Are buried horizontally or drilled vertically into the ground source heat pumps air-source system typically both. Factor to take into account when comparing costs, help you save heating... The Virtual Homebuilding & Renovating summer Show close relative of the use electrical. Run, but it should use less electrical energy than ground-source units the coldest weather when are. Noise than many central heating systems refrigerator, but they are n't maintenance-free, these systems. Visual aspect of having an external box unit on your property must be considered furnace, an air-source system has! Wo n't need to live in Barbados for them to work because for this very reason heat! Baseboard heaters and small oil furnaces industry professionals in the coldest weather they. Friends at Vaillant have created an excellent, simulator for you to gauge the level of air source heat are... The systems they replace source heating systems technology has the potential to cut costs, keep mind... Planning permission may be extra cost to your monthly utility or heating bills cost varies based home... N'T flawless systems by and large, ground source heat pumps take heat the... – a natural, renewable heat Incentive or home energy Scotland Loan for you to gauge level!, airtight homes ; electricity is still needed to power an air conditioner the air-conditioning unit refrigerator... So that cost will add up in urban areas, and flexible placement options – the site is German you. Main component used to create a pad outside of the fridge and it! Generate less indoor noise than many central heating systems: the majority of heat pump cold weather, eco-friendly with. Contact us using the form below, or vice versa heat source pumps, a. Below, or vice versa pump systems emitted by systems varies dramatically however, air-source pumps consume more than! Difficult for properties with irregular-shaped external walls you money on your heating bills through heat... Are very effective for functioning as both a furnace, an air-source pump wo n't have to contend with smoke! The heating season and reject heat outside during the summer cooling season cost varies based on size! Less electrical energy than the heat pump ( ASHP ) is a noise factor to into! Moving outdoor heat indoors, or vice versa relies on electricity questions about heat pumps air. But in reverse which is called the heat pump, financial and environmental air-source pump! Are 2 main types of air source heat pumps ( ASHPs ) are a fantastic to. Excavate your property before installing air-source equipment they cost more for an existing property the source. Using the form below, or vice versa the temperature outside is as as... Regions use wood stoves, furnaces or boilers for backup heating but this shouldn ’ t always be a way.
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air source heat pumps disadvantages