Heat pumps
Heat pumps – A full range of heat pump options is available from Nu-Heat. From ground source to air source or exhaust air, Nu-Heat can specify the correct heat pump model for your project. We can also advise on compliance strategies for the Code for Sustainable Homes.
Unsure if a heat pump is suitable for your project?
Use our online tool Before using the calculator please have to hand:
- Property age
- Land area
- Total property area
Because Nu-Heat supplies all of these technologies you can be sure they will integrate seamlessly as we provide all of the fittings necessary to complete the installation.
Heat pumps work by extracting the inexhaustible free supply of solar energy stored naturally either in the ground, air or water and utilizing it for domestic heating and hot water. Solar energy in this form is an unlimited resource that produces no harmful emissions and requires no transportation or supply pipelines.
Air Source heat pump.
In a well-insulated property, every 1 kilowatt of electricity used to power the heat pump can provide up to 5 kilowatts of free energy. This ratio is referred to as the Coefficient of Performance or CoP, in this case the CoP would be 5. Looking at it another way, a CoP of 5 means the efficiency of the heat pump is 500%. Compare this to a boiler at 90% efficiency and the advantage is clear.
Advantages
- Low carbon emissions
- Low heating bills with a high-efficiency system
- The perfect partner for Nu-Heat underfloor heating systems
- Full integration with Nu-Heat solar systems
- A good alternative for properties with no access to gas
How do they work?
Ground source explained read more 
The heat from the earth is a valuable, renewable resource that we can tap into without damage. The technology behind heat pumps, whilst not conventional, can be easily explained.
At a depth of 1metre below the surface the ground remains at a relatively constant temperature of 12˚C throughout most of the UK. This energy can be harvested from the ground either by placing horizontal ground loops in a series of 1-metre deep trenches or by placing the ground loops in vertical boreholes.
Very cold fluid is pumped through the ground loops where its temperature is increased by the surrounding warm ground. The heat pump unit extracts this energy from the fluid and uses it to warm water for heating and domestic use.
Advantages
- Consistent temperature below ground throughout the year providing a high CoP
- Full integration with Nu-Heat solar systems
- Boreholes only require a small ground area to harvest energy
Air source explained read more
Air source heat pumps are often a practical alternative, as they require no digging or drilling and fewer plumbing connections are used during installation, making them cost effective to install. The units extract energy from the air and will operate in temperatures down to -20˚C. Inevitably the CoP for air source units will be slightly lower than for ground source heat pumps, however they will still make a considerable contribution to reducing energy consumption by up to 50% when compared to conventional boiler systems.
Advantages
- Lower capital expenditure to achieve energy savings
- No ground works required
- Full integration with Nu-Heat solar systems
Exhaust air explained read more
These units extract the latent energy from the internal air of a property and use the recovered heat to recharge both the underfloor heating and domestic hot water. In doing so they also provide a means of controlling ventilation within the dwelling. The exhaust air unit is best suited to apartments and smaller houses with low heat loss and will often provide an excellent solution for housebuilders wanting to meet the requirements of The Code for Sustainable Homes.
Advantages
- The heat pump is sited within the property
- Controls the ventilation
- Helps achieve Level 3 of The Code for Sustainable Homes in apartment dwellings and Level 4/5 when linked to solar.
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