An air-to-air heat pump is one of the most efficient ways to heat and cool your home or business. It takes heat from the outside air, even on cold winter days, and delivers it as warm air through a quiet indoor unit. In summer, the same system works in reverse to keep you cool.
Eton Air Conditioning supplies and installs air-to-air heat pumps from Mitsubishi Heavy Industries and Daikin across London, Eton and Berkshire. With over 10 years’ experience, we design every system around your rooms, carry out a heat load calculation and install it neatly, so it runs efficiently all year round.
One system for all year comfort
Because it moves heat rather than burning fuel, a heat pump can deliver several units of heat for every unit of electricity it uses.
The outdoor unit draws heat from the outside air using refrigerant, even when temperatures are low.
The compressor raises the temperature of the refrigerant, concentrating the heat.
The indoor unit releases that heat as warm air, quickly bringing the room up to temperature.
In summer, the cycle reverses to remove heat from your room and keep it cool.
Air-to-air heat pumps are a practical, low-carbon alternative to electric heaters and can reduce reliance on gas boilers. They heat rooms quickly, give you precise temperature control and provide cooling in summer as well.
There are no radiators or water pipework to change, so installation is usually quicker and less disruptive than other heating systems.
Moves heat instead of generating it, helping to lower running costs.
One system keeps you warm in winter and cool in summer.
No radiators or wet system needed, usually installed in a day or two.
From a single room to a complete office, we design air-to-air heat pump systems for every type of property.
Heat individual rooms or your whole home efficiently, with cooling in summer too. Ideal for rooms that are hard to heat or where you want to move away from electric heaters.
Keep staff and customers comfortable all year with one efficient system for heating and cooling, designed around your space and opening hours.
Both types use heat from the outside air, but they deliver it in different ways. Here is how they compare.
Heat is delivered as warm air through indoor units. This is the type of heat pump we specialise in.
Heat is delivered to radiators or underfloor heating and can also provide hot water. They usually replace a boiler and often need larger radiators, a hot water cylinder and more installation work.
Not sure which suits you? We will give you honest advice during a free site survey.
Air-to-air heat pumps suit most homes and businesses. Here is what we consider before recommending a system.
We look at which rooms you want to heat and cool and size the system with a heat load calculation.
Good insulation helps any heat pump work more efficiently. We will point out anything that could improve performance.
The outdoor unit needs a suitable wall or ground position with good airflow and access for maintenance.
We check your electrics can support the system and include any work needed in your quote.
Many installations fall under permitted development, but flats, listed buildings and conservation areas may need consent.
A clear, simple process from your first call to a fully working system.
Call us or send the form with a few details about your property.
We visit, assess your rooms and carry out a heat load calculation.
We recommend the right Mitsubishi Heavy Industries or Daikin system and give you a clear quote.
Indoor and outdoor units, pipework and electrics installed neatly, usually in 1 to 2 days.
We test heating and cooling modes and check the system is performing correctly.
We show you how to use the controls and recommend regular servicing.
From Westminster and Kensington to Ealing, Richmond, Windsor and Maidenhead, our engineers install air-to-air heat pumps in homes and businesses across every London borough and the wider Berkshire area.
Book a free site survey and get honest advice and a clear, no-obligation quote.
Answers to the questions we are asked most about air-to-air heat pumps.
An air-to-air heat pump takes heat from the outside air and delivers it into your rooms as warm air through indoor units. In summer it works in reverse to provide cooling, so one system gives you both.
Yes. Modern systems from Mitsubishi Heavy Industries and Daikin are designed to keep heating efficiently in UK winter conditions, although efficiency naturally reduces as outdoor temperatures drop.
Most modern split air conditioning systems are air-to-air heat pumps. They can both heat and cool, which is why many customers use them as their main heating in some rooms.
No. Air-to-air heat pumps heat and cool the air in your rooms. Hot water needs a separate system, such as your existing boiler or an electric cylinder.
Most single-room systems are installed in a day. Multi-room systems usually take 1 to 2 days, depending on the number of indoor units and the pipework route.
Many installations are covered by permitted development, but conditions apply, and flats, listed buildings and conservation areas may need consent. We check this during your free survey.
The government’s Boiler Upgrade Scheme includes some air-to-air heat pumps, but eligibility rules apply and the installation must be carried out by an MCS-certified installer. Check the latest criteria on GOV.UK before you plan your project.
Explore our other heating, cooling and ventilation services.
Split, multi-split, ducted and cassette systems for homes and businesses.
Learn more →Regular servicing keeps your heat pump efficient and reliable.
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