The Avenue

The Project.

The homeowner of this property in Somerset has been extensively altering the home over the years adding solar PV and a battery storage as well as increasing insulation values by changing windows and increasing loft and cavity installation. The next step was to add an air source heat pump and remove the gas boiler to help reduce their reliance on fossil fuels.

The Solution.

By improving the insulation values of the property we were able to utilise Daikin’s Altherma 3 mono bloc and keep the design flow temperature low by changing some of the radiators inside.

The existing system was a combi boiler, so our solution including new flow and return pipework to a new hot water cylinder and buffer vessel installed in an airing cupboard.

The Heat Pump.

As the customer has updated the house considerably and insulated where possible our solution was to install a Daikin Altherma 3 R32 monobloc heat pump, with high capacity at lower ambient temperatures and its tailoring specifically for the UK market this heat pump can deliver higher temperatures at greater efficiencies.

Due to the location in Clevedon, with its traditional homes and stone walls the newer style black and silver Daikin units fit in nicely compared with the old style cream air conditioning style heat pumps.

Value.

The project value here was approximately £15k with an expected RHI income of £10,635 based on the customers EPC. The running costs for the system are expected to be compatible to that of the old gas boiler due to lower gas prices and typically higher electricity prices, however the customer has a PV and battery storage system which should help to offset the electricity costs of the heat pump.

This puts the payback time at around 8 to 10 years, potentially less due to the PV and battery storage system.