Heat Pump in a Full Renovation, Epsom KT19

A house being renovated and extended to current standards, with the gas boiler replaced by an 8kW Samsung Gen 7 serving underfloor heating downstairs and radiators upstairs.

  • Heat pumpSamsung Gen 7 8kW
  • Hot waterSamsung 250-litre cylinder
  • Postcode areaKT19

020 3393 1331

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The Samsung Gen 7 on anti-vibration feet on its concrete base beside the fence.

A heat pump planned into a full renovation in Epsom

We replaced the gas boiler in a renovated and extended Epsom KT19 home with an 8kW Samsung Gen 7 heat pump and a 250-litre Samsung cylinder. Underfloor heating downstairs and radiators upstairs run as separate zones with a buffer tank and Hive wireless thermostats. With new insulation and triple glazing throughout, the house needs far less heat than before, which is why 8kW is enough. The £7,500 grant was applied.

Underfloor heating and radiators want different water temperatures, so they run as separate zones with their own thermostats, and a buffer tank lets each draw what it needs. The outdoor unit was positioned to meet Samsung's clearance requirements around the layout of the new extension, set into a planted border on a hard base with a short pipe run.

On a renovation, the heat pump is one trade among several. The heat loss survey, pipe routes and commissioning were planned around the builders' programme.

Air source heat pumps

The job in short

  • Where: Epsom KT19, Surrey
  • Project: Full renovation and rear extension, new insulation, triple glazing
  • Heat pump: Samsung Gen 7 8kW
  • Hot water: Samsung 250-litre cylinder
  • Heating: Underfloor downstairs, radiators upstairs, separate zones
  • Controls: Hive wireless thermostats, buffer tank
  • Grant: £7,500 Boiler Upgrade Scheme

Photos from the job

The control box on the plant room wall, with the cables brought in underneath.

Thinking about a heat pump in Epsom?

We measure every room, calculate the heat loss, check the radiators and the space for a cylinder, and send a written price with the grant already taken off. No cost and no obligation.

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