Heat pumps for Powys — Wales's biggest, emptiest, most off-grid county.
Hardly any of Powys ever got mains gas, so most homes here pay for oil, LPG or electric heat. That makes Mid Wales genuine heat-pump heartland — and it's where Thermal Earth has done some of its best rural work. 4,000+ systems installed over 20+ years, with our own designers, drilling rigs and installation crews.
Stone farmhouse above Rhayader, hillside cottage near Machynlleth or a family home in Newtown: we design the system around the building, then install it with one team.
No EPC? Send an enquiry or call 01269 833100. We can check the evidence needed for your property.
4,000+ systems installed 20+ years of heat pumps Since 2006 across rural Wales
Leaving oil is where a heat pump earns its keep.
We've replaced hundreds of oil and LPG systems across rural Wales. The pattern repeats: the more expensive the fuel you're leaving, the harder the savings work — and Powys homes are leaving the most expensive fuels of all.
Air or ground — Mid Wales rewards both.
Which one fits comes out of the survey, not the brochure. See how we design the complete system.
Simple, quick and quietly effective.
One outdoor unit sized for hill-country winters, positioned for sound and weather, with radiators, hot water and controls designed around it. For most village and town homes, the natural first look.
Explore air-source heat pumpsMade for Powys winters.
When the air is at its coldest, the ground stays temperate — which is why ground source performs so well up here. With a paddock or field, our own rigs put in trenches or boreholes sized for your home; we know Mid Wales geology from years of drilling it.
What the survey settles for a Powys property.
Stone walls and remote lanes don't rule out a heat pump — some of our favourite installations are exactly there. These are the things that actually decide the design.
- Heat demand
- Room-by-room heat loss on a proper Mid Wales cold snap — measured, not guessed from the old boiler.
- Fabric
- A straight answer on whether insulation or draught-proofing would genuinely help old stone — and when it isn't needed.
- Radiators
- Tested at heat-pump temperatures. Many farmhouses keep most of what they have.
- Source and access
- Unit siting for air source; land, rig access and collector sizing for ground source.
- Hot water and plant
- Cylinder space and hot-water habits — farm kitchens and B&B bathrooms included.
- Power
- Rural single-phase supplies checked up front, with any DNO notification handled by us.
Welsh rules, checked for your address.
Most domestic installations are permitted development when the Welsh conditions are met. Listed buildings, conservation areas and National Park edges can change the route — we check your exact address as part of the survey.
Grant help, handled with you.
You may qualify for the Boiler Upgrade Scheme — we handle the application. Nest and Green Homes Wales can help eligible households further, and finance can spread the rest.
Eligible air-to-water or ground-source heat pump installations receive £7,500. If your property has no mains gas connection and you are replacing oil or LPG heating, the grant is £9,000 for applications properly made from 21 July 2026 to 31 March 2027. We check eligibility for your home.
Things Mid Wales homeowners ask us.
Straight answers — the survey fills in the detail for your own house.
Can a heat pump handle a Powys winter?
Yes — properly sized, that's the whole point of the design. We size for your home's coldest week, not an average; and ground source in particular shrugs off cold snaps because the ground stays temperate.
Can it work in an old stone farmhouse?
Some of our best installations are exactly that. Heat loss measured room by room, radiators checked, fabric respected — the design fits the building, not the other way round.
Will it beat oil or LPG on bills?
Usually, and often substantially — replacing expensive rural fuels is where heat pumps shine. We'll show you the numbers for your own house before you decide anything.
We're a long way from anywhere. Do you really cover us?
Yes — remote properties are a normal week's work for us, and we've installed across the length of the county. Surveys, installation and servicing all come from our own team.
What happens after the online estimate?
We review your details, arrange a survey if it looks right, and come back with a full proposal — system, cost and grant route. No obligation at any step.
All of Powys — and it's a lot of Powys.
Llandrindod Wells, Builth Wells, Newtown, Welshpool, Machynlleth, Rhayader, Knighton, Presteigne, Montgomery, Llanidloes and Llanfyllin — plus every farm and hamlet between them.
For the Bannau Brycheiniog end of the county, see our Brecon page — or see everywhere we work.
Ready to get your Powys home off oil?
Start with a free online estimate — or for farms, estates and bigger projects, send us the site and we'll talk it through.