Air-source heat pumps
Replace the gas combi or oil boiler with a properly sized heat pump. SCOP 4.5+, MCS-ready paperwork.
An air-source heat pump replaces the gas combi or oil boiler that currently heats your home. It works the same way as an AC unit running in heating mode, just bigger — extracting heat from the outside air and using it to warm your water and heat your radiators or underfloor circuit.
The sizing exercise is more involved than for an AC unit, because the heat pump has to cover your worst-case winter day, not just take the edge off a hot July afternoon. We do a full heat-loss calculation against the EN 12831 standard — every room, every window, every insulation grade — and specify the kW from there.
Most Cheshire homes land between 8kW and 16kW. We exclusively fit Daikin Altherma 3, Mitsubishi Ecodan and Toshiba Estia, all with SCOP figures of 4.5+ at the relevant flow temperatures. SCOP 4.5 means roughly 4.5kW of heat output for every 1kW of electricity in.
We're MCS-aware on the paperwork — the install record meets the format the BUS grant scheme accepts, and we'll point you at the current grant amount if it applies.
Every install we do, this is in.
The line items below are non-negotiable on every job. Anything beyond — relocation of an outdoor unit, building works, listed-building consent — is quoted separately and clearly.
- Full EN 12831 heat-loss calculation
- Heat pump sized for worst-case winter, not average
- Daikin, Mitsubishi or Toshiba unit (depending on the calc)
- Hot-water cylinder where required
- Pipework modifications and radiator review
- Commissioning and full F-Gas record
- Handover pack and grant-ready paperwork
Things people ask before booking.
Will it work with my existing radiators?
Sometimes. Heat pumps run at lower flow temperatures than gas combis — usually 45–55°C compared to 70°C+ — which means the radiator surface area has to be larger for the same room output. We assess every radiator at the survey and flag any that need upgrading.
How noisy is the outdoor unit?
Modern domestic heat pumps run at 35–45 dBA at the unit, dropping to under 30 dBA at the boundary on a typical install. We site them carefully and use anti-vibration mounts; nobody we've fitted for has come back about noise.
Is the BUS grant straightforward?
Reasonably. The £7,500 Boiler Upgrade Scheme grant comes through if your install is by an MCS-certified contractor; we'd partner with one for the certification side, but our paperwork is the format the scheme accepts. We'll walk you through the application before we start.
Recent installations of this kind.
Farmhouse heat-pump replacement, Tarporley
16kW Mitsubishi Ecodan replacing a failed LPG boiler in a six-bedroom farmhouse. Significant radiator review needed.
View this installation
Oil-to-heat-pump conversion in Alderley Edge
12kW Daikin Altherma 3 replacing a tired 1990s oil boiler. Worst-case winter sized properly, BUS grant paperwork ready.
View this installation