Frequently Asked Questions
We have put together a handy guide of all our most commonly asked questions, from product advice to delivery information.
If you can’t find an answer to your query please get in touch and one of our expert team members will be more than happy to help.
Air source heat pumps are devices that take heat from the air and convert it into heating for your home and hot water. They work even at low temperature to provide heating during the cold months, and cooling during the warmer months.
There are two types of heat pumps available, air source and ground source. Air source heat pumps are small units mounted outside your home. Ground source heat pumps are enormous devices that are buried deep in the ground. Air source heat pumps extracts the heat from the air even when the temperature is very low. Ground source heat pumps extract heat from deep within the ground where is the temperature is more constant.
The air source heat pump absorbs heat from the outside air into a liquid refrigerant at a low temperature. Using electricity, the pump compresses the liquid to increase its temperature. It then condenses back into a liquid to release its stored heat. Heat is sent to your radiators or underfloor heating.
Yes, As cold as it might feel outside during the winter months, air source heat pumps are still able to use it to generate heat for your property's central heating system.
In many cases, yes, a heat pump can provide all the heating and hot water you need for your home.
A big myth is that air source heat pumps need to be placed in a sunny position or on a south facing wall; this simply isn't true, but they should be sensibly placed in an area that isn't too confined. Also check that you have sufficient electrical power available on your fuse board for this extra appliance.
Running a heat pump is similar to a gas boiler in that you only need to have it on when you need heating in the house. Running a heat pump all day would be very inefficient and extremely costly so having it on at set times of the day when heating is required is the best way to go. How long it takes to heat the house depends on how well insulated the property is. Having a well insulated house will not require the heat pump to run as long or as often which in turn will lower your heating bills.
Typically, the best location for a heat pump is a shady area, away from direct sunlight. The condenser also needs to be installed directly on the side of or behind the home, away from any shrubbery or vegetation which could interfere with airflow.
Lower heat supply than boilers. Your home must already be well-Insulated. Lower efficiency below 0°C. Lower savings compared to low price mains gas. Expensive to install.
Air Source Heat Pumps save money. Heat pumps are much cheaper to run than direct electric heating systems. ASHPs are cheaper to run than oil boilers and can be cheaper than running gas boilers. Because heat pumps can be fully automated they demand much less work than biomass boilers.
A typical air source heat pump costs about 5.73p per kWh to run, based on a house being insulated to current building regulations. The performance and running costs of a heat pump is only as good as the insulation of the property. An extremely well insulated home that has very little heat loss will cost very little to heat compared to a poorly insulated house which looses most of the heat being produced. Insulation is key to lowering your heating bills, so make sure to close the windows when the heating is on and seal any heat loss points around the house.
Heat pumps do not operate as efficiently when temperatures drop to between 25 and 40 degrees Fahrenheit for most systems. A heat pump works best when the temperature is above 40. Once outdoor temperatures drop to 40 degrees, heat pumps start losing efficiency, and they consume more energy to do their jobs.
Yes! Air source heat pumps work well with radiators as long as they are correctly sized and designed for heat pumps instead of gas boilers.
Due to the lower flow temperatures (around 60oC) your heat emitting surface area must be bigger than for boiler-operated heating. This means existing radiators may not be suitable. A heat pump engineer will calculate whether to replace them.
Heat pumps can be installed in almost any home, however there are some considerations that may need to be addressed, particularly regarding insulation. In order for a heat pump to work at its most efficient, your home needs to be well insulated to prevent as much heat from escaping as possible.
Yes, a whole-house heat pump can provide heating and cooling for your entire home, making it a great choice for those who want an energy-efficient solution.
Yes, since air source heat pumps generate energy organically and don't use fossil fuels, they are much cheaper than oil.
You will need a hot water cylinder to store the heated water as an air source heat pump doesn't heat the water quickly enough, unlike a combi boiler.
The air source pump will work out cheaper long-term and you can claim much of the initial cost back through a grant but the gas boiler is cheaper up front.
If properly maintained air source heat pumps can last up to 20 years, depending on usage frequency, though 15 years is an average lifespan. Functionally, heat pumps are similar to air conditioners, but because they can provide both heating and cooling, they are typically used longer each year.
It is actually possible for you to receive some financial help from the government when you start using an air source heat pump. You may be eligible to receive payments for the heat that you generate using the pump, all through the government's Renewable Heat Incentive (RHI)
Check air filters monthly. Clean or replace as needed. Keep outdoor unit clear of snow, ice, and debris. This includes the top, sides, bottom, and around the heat pump.
Air source heat pumps can be used for both heating and cooling purposes. Depending on the model, they can provide cooling in the summer and heating in the winter. All you need to check is that the COP of your air source heat pump should be above 0.7 for cooling.
Seasonal Energy Efficiency Rating is the most commonly used efficiency rating for both heat pumps in cooling mode and air conditioners. HSPF – Heating Seasonal Performance Ratio is used to measure a heat pump's heating efficiency.
Heat pumps are not designed to be DIY projects, no more than trying to install your own gas boiler. However, after purchasing a heat pump you can set the units up on their own. This part is not technical and will save money in the installation process if the unit is already mounted in its place when the certified technician comes to install it.
Since the end of 2011, if you live in England, all heat pumps (air, ground and water) are considered a permitted development, so no planning permission is required.
All you need is room for the unit to be fitted to an exterior wall, with enough space around it to get a good flow of air.
The cost of retrofitting an air source heat pump in an existing property can range from about £9,000 up to around £27,000 if you are replacing the whole system and there is a requirement for disruptive changes and fabric improvements.
You can add a heat pump to an existing boiler for those times of year when the climate is moderate and it might be more economical to run a heat pump rather than use gas, propane or oil.
In October 2021 the UK government announced a Boiler Upgrade Scheme to help householders changing from a gas boiler to a heat pump (air source or ground source). The £450 million scheme will run for 3 years and offers a payment of £5,000 per home towards installing a new heat pump.
In 2025, gas boilers will be replaced by renewable heating systems in all new-build homes. This is part of a government effort to achieve net-zero CO2 emissions by 2050
No, Gas boilers will not be banned from 2025. It is likely however, that new build properties from 2025 will not achieve the 75% - 80% carbon reduction targets they have been given with a gas-fired boiler hence the move to renewable heating systems like heat pumps.
In most cases, heat pumps are worth it. Heat pumps are usually more expensive to install, but you end up saving more money throughout the year with low maintenance costs, making heat pumps a great investment. Additionally, heat pumps are much safer with no risks for a gas leak, which can expose you to carbon monoxide.