Domestic hot water
All Kensa ground source heat pumps can be built to provide hot water production capable of delivering temperatures to a comfortable 50°C.
Where there is an exceptional hot water demand, High Temperature models are available to deliver hot water to 60°C.
Innovation under pressure
As standard, immersion heaters are not used in any Kensa models, due to their costly implications on end users.
Furthermore, Kensa has pioneered an approach to domestic hot water production in its ground source heat pump models removing the requirement for thermostats.
How it works
When there is a demand for hot water the heat pump switches from space heating mode to hot water mode and the heat pump outlet temperature is increased.
The maximum temperature from a heat pump is generally around 50°C, although Kensa High Temperature and Hybrid models are able to deliver hot water to 60°C. The higher the hot water production, the lower the heat pump efficiency.
This hot water is generally piped through an indirect coil mounted in a separate hot water tank and hence the expected tank temperature will be around the 45-48°C range.
Mains pressure cylinder
Our ground source heat pumps can be linked to a mains pressure cylinder to provide domestic hot water although the required output temperature – 45-50ºC – will certainly impact efficiency.
One alternative is to provide a mains pressure cylinder complete with immersion heaters and, if possible, link to an Economy Seven, or preferably, an Economy Ten tariff so the water can be heated during low cost periods. If only Economy Seven is available, a larger cylinder might be required to reduce the occasions when higher priced electricity is required to produce hot water.
All cylinder manufacturers provide models which can receive an input from solar panels, if installed, to reduce dependence upon electricity.
Blend hot water demand without comprising on efficiency
Blending the advantages of the standard Twin Compact and High Temperature model, the Hybrid Twin Compact provides efficient heating and higher water temperatures; ideal for scenarios where buildings are modern or well insulated, but the end user requires higher than average hot water temperatures, without the burden of any direct electric top-up for the hot water.