Detached property, hosted by Roy

Vaillant air source heat pump in a 1920 - 1944 property

Roy

Professionally a computer programmer I'm an early adopter on most technologies. We also have an EV, solar system and share in a wind farm (Ripple Energy). I feel it is important to share experiences to encourage take up of the technology.

Joined the network in 2025

Upcoming events

12 Apr 2025

14:00

1 of 4 places taken

Book a visit

Can’t find an event for you? Register your interest to hear about their next one.

Follow this property

About this property

South Croydon, CR2

4 bedrooms

Air source heat pump

Installed by Elite Renewables Ltd

See other installs

EPC rating: C (78)

Cost of energy bills per year: £1400

Installing the system

1930's house with insulated cavity wall. 300mm loft insulation. Full double glazing. The COP for heating seems to be around 4.5 - 4.9 with a flow temperature of around 32 degrees. Install took a whole week with about three days living using electric fans. Only one day without hot water. Three radiators were upgraded, all other plumbing was fine.

Living with a heat pump

Costs seem to have fallen. We are on Intelligent Octopus Go as we have an EV, this gives us 6 hours of 7p/kWh electricity (as per 2025) which we use to heat the hot water overnight at about a third the cost of gas. Heating is more similar to gas in cost as we have to heat in the daytime. Our Solar system and battery storage help reduce the amount of daytime electricity that we use. We also save the £100 or so gas standing charge. Radiators are cool but keep up with the heat loss of the house. The Vaillant 10kW heat pump seems efficient and pretty noiseless.

Hosted by Roy

Message Roy if you want to ask them something about their heat pump or the process of getting one installed. Click request a visit above if you want to arrange a visit.

Message me

Accessing the venue

Easy to park on the street