Air source heat pump installation in Macclesfield
In short
An air source heat pump extracts heat from outside air and delivers it to your radiators and hot water cylinder at a low flow temperature. It works well in a house designed around it — which means a proper heat loss survey, correctly sized emitters and a cylinder with a large coil — and disappoints in one that is not.
Also called: ASHP installation · heat pump fitted · replace boiler with heat pump · air to water heat pump
Signs you need this
- Currently heating with oil, LPG or direct electric
- Planning a renovation where radiators and pipework are accessible anyway
- An old boiler due for replacement and a well-insulated house
- Interest in grant funding through the Boiler Upgrade Scheme
- Underfloor heating already installed or planned
The physics is the appeal. A heat pump moves heat rather than creating it, so for each unit of electricity it uses it can deliver three or four units of heat. That is what makes the running cost competitive despite electricity costing more per unit than gas — and it is also why the design has to be right, because the efficiency falls as the flow temperature rises.
That single fact drives everything else. A gas boiler system runs at 60 to 70°C; a heat pump wants to run at 35 to 45°C. At those temperatures a radiator emits far less heat, so radiators sized for a boiler are usually too small. The survey works out, room by room, what each space loses and what emitter is needed at the design flow temperature — and in a well-insulated house that often means fewer changes than people expect, while in a solid-walled cottage it may mean several.
Hot water is the other half. A heat pump heats a cylinder rather than producing instant hot water, and it needs a cylinder with a large surface area coil designed for low-temperature operation — a standard boiler cylinder will not transfer heat fast enough. Most installations include a new cylinder for exactly that reason.
There is a genuine local case for heat pumps, and it is strongest off the gas grid. DESNZ figures put 40.7% of properties in the Gawsworth and Macclesfield Forest area with no gas connection at all, against 11.6% across Cheshire East. For a house currently running on oil or LPG, the running cost comparison is completely different to a house on mains gas — and those are precisely the properties where a heat pump makes the most sense financially.
The honest caveats. A heat pump needs external space for the unit with adequate airflow, and it makes some noise — modern units are quiet but not silent, and siting matters, particularly on a terraced property with a neighbour's window nearby. Planning permission is usually not required under permitted development, but conservation areas and listed buildings have additional constraints, and Macclesfield has a lot of both. Insulation first is not a slogan: money spent on loft and floor insulation before the pump reduces the size of unit you need and improves everything afterwards.
MCS certification is what makes an installation eligible for Boiler Upgrade Scheme grant funding and is the standard most warranties are written against. It also imposes a design discipline — the heat loss calculation, the emitter schedule, the performance estimate — which is exactly the discipline that separates a good installation from a bad one.
What the job covers
- Room-by-room heat loss survey and system design
- Emitter schedule — which radiators need changing and which do not
- Cylinder specification with a heat-pump-rated coil
- Siting assessment for airflow, noise and planning constraints
- Installation, commissioning and controls setup including weather compensation
- MCS paperwork and Boiler Upgrade Scheme application support
What it costs
We don't publish a price for this yet, because a number pulled out of the air is worse than no number at all — your plumber has to honour it. You'll get a firm price for your actual job when they ring you back, before any work starts. The quote itself is free and there's no obligation either way.
Common questions
Do I need to replace all my radiators?
Usually not all of them. The survey identifies which rooms need larger emitters at the design flow temperature — often it is a handful rather than the whole house, particularly where the property is reasonably insulated.
Will it work in an old stone cottage?
It can, but the heat loss is higher so the design has to be honest about it. Insulation improvements first often make the difference between a system that works well and one that struggles.
Need this doing in Macclesfield?
Tell us the job and it goes straight to our local plumber — one call back, usually the same day. Free quote, no obligation.