Air source
heat pumps

What is an
air source heat pump?

An air source heat pump works by absorbing heat from the environment, even when temperatures are well below freezing. It extracts heat from the air around us and transfers that heat to the inside of your home, keeping you warm and comfortable.

How does
it work?

A heat pump works a bit like an inside-out fridge. It captures heat from outside and moves it into your home, using electricity to do so. Here’s how it works:

1

Outside air is drawn in over a network of tubes filled with refrigerant gas, which circulates at -28°c to extract heat energy from the air outside.

2

The gas passes through a compressor which increases the pressure and temperature causing it to change from a cold gas to a hot liquid.

3

The compressed hot liquid passes into a heat exchanger that heats water for both your radiator heating circuit and your taps. The refrigerant then turns back into a cold gas and starts the cycle all over again.

About the
air source
heat pump

Our Air Source Heat Pump systems are designed to suit a
wide range of properties; anything from small new builds to large renovations. They provide central heating and hot water simultaneously whilst reducing carbon emissions by up to 60%
and reducing heating bills.

Manufactured in the UK, they have been developed for UK
temperatures with guaranteed efficiency and cost savings.
The guilt in eco link remote minitored free of charge for 3 years included. Works down to -20°. COP in winter is 3.5, and 4-5 in summer (average). Includes backup heating and in-house house wifi linked master controller

COP
What is it?

COP (Coefficient of Performance) is a measure of efficiency. The efficiency of any machine or system can be calculated as the ratio of amount of work done by the machine to the amount of work given to the machine. In the case of a heat pump, its efficiency is the ratio of useful heat energy produced to electrical energy consumption. A COP of 2.5 means that the heat pump supplies 2.5 times as much heat energy to the system as it consumes in electrical energy

Things to consider

Upgrading radiators for air source heat pumpsSome heat pump system designs, particularly low-temperature heat pumps, may also require larger radiators to work at their maximum efficiency.

Air source heat pump for underfloor heatingHeat pumps work best when there’s less of a difference between the inside and outside temperatures. Floors cover a much bigger area than radiators, so they don’t need to get as hot to provide the same amount of heat. This makes them a good match for underfloor heating, but it’s not essential.

Heat pumps for water heatingHeat pumps can also be a great source of hot water – but the water is likely to be around 50-55 °C with a heat pump, compared to 60-65 °C with a boiler.  This means that if you’re running a bath, you’ll need more hot water and less from the cold tap. 

We would recommend combining it with a hot water heat pump cylinder.

A heat pump cylinders comprise of a stainless steel hot water cylinder with a hot water heat pump mounted on top. The heat pump produces hot water very efficiently by extracting heat from internal air supplied via ductwork (not included) giving better COP performance. The unit can achieve a maximum of 75°C hot water with immersion and heat pump. This is a perfect combination to work with our ribbon underfloor heating and great for renovations or extensions.

Grants
available

There are now grants available if you want to move over to
using an air source heat pump.

ECO4
ECO4 is a government-supported initiative that has been put in place to help reduce household carbon emissions and provide more energy efficiency measures to UK homes.

Through the scheme, homes could receive discounted (or free) home insulation, an upgraded boiler or green heating system.

Only the most energy-inefficient homes can benefit from ECO4, meaning that your property must have an Energy Performance Certificate (EPC) of D or lower.

ECO4 was introduced by the government in April 2022 and will run until 31 March 2026.

HUG
HUG is a government initiative that will deliver up to £700 million in funding between 2023 and 2025. It will provide successful local authorities with funding to improve homes in England with energy-efficient upgrades and low-carbon heating. Helping towards the 2050 net zero targets set by the government.

BOILER UPGRADE SCHEME
The Boiler Upgrade Scheme (BUS) supports the decarbonisation of heat in buildings. It provides upfront capital grants to support the installation of heat pumps and biomass boilers in homes and non-domestic buildings in England and Wales.