Air to Air Heat Pump Grant Eligibility

Air to air heat pump grant eligibility, in one honest answer

The air-to-air heat pump grant is the £2,500 payment added to the Boiler Upgrade Scheme (BUS) on 28 April 2026 by SI 2026/390 — the first time UK government funding has covered air-conditioning-style heating (as at July 2026). It is a flat £2,500, not £7,500, and the scheme runs to 2030.

In plain terms, you are likely eligible if you own a residential property in England or Wales, you are replacing your existing fossil-fuel or electric heating, and you use an MCS-certified installer fitting an MCS-certified unit. You are not eligible if you live in Scotland or Northern Ireland, you want to keep a boiler and only add cooling, or your home is a new-build or social housing. The walk-through below is deliberately blunt. It is far better to learn you do not qualify now than after a paid survey.

The condition that rules most people out: you must replace your heating

Read this before anything else, because it disqualifies the single largest group of enquirers. The grant funds a heat pump that becomes your home's heating system. It does not fund bolting a reversible air-conditioning unit alongside a gas, oil or LPG boiler you intend to keep. gov.uk is explicit that the system must replace "oil, gas, electric or LPG" heating, and BUS rules bar hybrids: you cannot retain a fossil-fuel boiler for space heating and still claim the grant (as at July 2026).

So if your honest plan is "keep the boiler for winter, fit air-to-air for summer cooling and the odd cold evening", you do not qualify, and there is no wording that gets you around it. The installer signs a declaration and commissions the unit as your heating. Cooling-only units are excluded outright, even from the separate 0% VAT relief. If cooling is your real motive, that is a perfectly good reason to buy air-to-air, but you will be paying for it yourself.

Which nations qualify

The Boiler Upgrade Scheme is an England and Wales scheme, and air-to-air eligibility follows it exactly (as at July 2026).

Nation	£2,500 BUS grant	0% VAT	Notes
England	Yes	Yes	Full eligibility, subject to the conditions below
Wales	Yes	Yes	BUS applies; the means-tested Nest scheme is usually air-to-water
Scotland	No	Yes	No BUS; Home Energy Scotland excludes air-to-air (needs 100% heating and hot water)
Northern Ireland	No	Yes	No BUS; only the 0% VAT price cut applies

In Scotland and Northern Ireland the only national support for air-to-air is the UK-wide 0% VAT on supply and installation under HMRC VAT Notice 708/6, which runs to 31 March 2027 and then rises to 5% (as at July 2026). That is a genuine price cut, but it is not the grant, and no paperwork makes air-to-air BUS-eligible north of the border or across the Irish Sea.

Property and product conditions

• Residential and domestic only — the grant is for homes, not commercial premises (as at July 2026).
• Not a new-build — excluded, other than eligible self-builds.
• Not social housing — excluded.
• Not a home that already has a heat pump — you cannot stack a second grant onto an existing pump.
• One grant per property — a heat battery is also £2,500-eligible, but you cannot claim for both.
• MCS-certified installer and MCS-certified product — both are mandatory. No MCS, no grant.

The EPC requirement was removed on 28 April 2026, so you no longer need a valid Energy Performance Certificate free of outstanding insulation recommendations. A recent fuel bill plus photographs of your existing heating are accepted instead (as at July 2026). That change quietly widened eligibility for older and harder-to-treat homes that would previously have been blocked.

The catch nobody else prints: MCS-certified air-to-air installers are scarce

Here is the part most grant pages leave out. The law is live and the £2,500 is real, but the certification plumbing behind it is still being built. Through 2026, MCS certification for air-to-air is still rolling out: certification bodies are gaining UKAS accreditation to certify air-to-air installers, an installer's Technical Supervisor needs an RACHP Level 3 refrigeration qualification, and MCS has published no fixed completion date, describing timescales as varying (as at July 2026).

The practical consequence is worth stating plainly: without an MCS-certified air-to-air installation, there is no grant. So you may be perfectly eligible on paper while no MCS-certified air-to-air installer is yet available in your area. The grant is genuine, but it is not always readily claimable yet. Anyone who tells you it is a formality today is not being straight with you, so check installer availability before you count on the money.

Air-to-air makes no hot water — plan for it

This is not an eligibility rule, but it decides whether the grant is right for you, so treat it as one. Air-to-air heat pumps move warm, or cool, air around your rooms. They produce no domestic hot water at all. That is inherent to the technology, not a defect. You will need to keep a separate hot-water source such as an immersion heater, a hot-water cylinder, or a dedicated hot-water heat pump.

This is exactly why Home Energy Scotland and ECO4 exclude air-to-air: their rules demand a system providing both heating and hot water, and air-to-air provides only heating. If you were hoping one grant-funded unit would replace your whole boiler including hot water, air-to-water is the better fit, and it carries the larger £7,500 grant. Being honest about hot water now saves a wasted survey later.

Myth: "air-to-air only qualifies if you replace direct electric heating"

You will see this claim on installer blogs and forums. It is folklore, not law. gov.uk lists the heating you can replace as "oil, gas, electric or LPG" — it does not single out direct electric, and neither does Ofgem's guidance nor the legislation (as at July 2026). Do not let a mis-stated rule talk you out of a grant you actually qualify for.

What is true is that air-to-air is best suited to certain homes rather than legally restricted to them. All-electric homes, storage-heater homes, flats, park homes and off-gas properties tend to see the biggest running-cost saving, because they are replacing the most expensive heat. That is a judgement about payback, not an eligibility gate.

You probably qualify if…

• Your home is in England or Wales and is a residential property.
• You are replacing your existing heating — oil, gas, LPG or electric — rather than adding cooling to a system you keep.
• Your home runs on storage heaters, direct electric, or a fossil-fuel system you are ready to remove.
• You accept you will still need a separate hot-water source.
• You can find an MCS-certified air-to-air installer who will fit an MCS-certified unit.
• Your property has no existing heat pump, and is not a new-build or social housing.

You do NOT qualify if…

• Your property is in Scotland or Northern Ireland (0% VAT only, no £2,500 grant).
• You want to keep your boiler for heating and only add air-to-air for cooling or top-up warmth.
• You are fitting a cooling-only unit (excluded from the grant and from 0% VAT).
• Your home already has a heat pump, or is a new-build (bar eligible self-builds) or social housing.
• You expected £7,500 or the £9,000 off-gas uplift — those are for air-to-water and ground-source, never air-to-air.
• No MCS-certified air-to-air installer is yet available to you — eligible on paper, but unclaimable until one is.

Your top eligibility worries, answered

I have a gas boiler — can I still qualify?

Yes, but only if you are removing the boiler and letting the heat pump take over your heating. You cannot keep the boiler for space heating and claim the grant, because hybrids are excluded (as at July 2026).

My home is all-electric with storage heaters — is that eligible?

Yes. Replacing electric heating is explicitly allowed, and storage-heater homes usually see the largest running-cost saving — often £500 to £900 a year, since storage heaters ran on cheaper Economy 7 night units (as at July 2026).

I'm in Scotland — is there anything for me?

Not the grant. Scotland has no Boiler Upgrade Scheme, and Home Energy Scotland excludes air-to-air because it makes no hot water. You still get UK-wide 0% VAT on installation to 31 March 2027 (as at July 2026).

Do I still need an EPC?

No. The EPC requirement was removed on 28 April 2026. A recent fuel bill and photographs of your existing heating are accepted instead (as at July 2026).

Is the £2,500 paid to me directly?

No. Your MCS-certified installer applies for it and deducts it from your quote upfront, so you pay the reduced price. The air-to-air voucher is redeemed within three months (as at July 2026).

What happens next — honestly

1. Check the two gates you control: nation (England or Wales) and intent (replacing heating, not adding cooling). If either fails, stop here — the grant is not for you, and we would rather say so now.
2. Confirm an MCS-certified air-to-air installer is available near you. This is the real bottleneck in 2026. You can verify a company's certification on the MCS register. No MCS air-to-air certification means no grant, whatever else is true.
3. Get a survey and a written quote with the £2,500 already deducted. A typical flat or small house comes to around £4,500 before the grant (as at July 2026), so the net figure should be clearly lower.
4. Plan your hot water separately and keep your immersion or cylinder in the specification.

We are an information hub, not an installer. We do not sell a brand of kit, and we would rather disqualify you honestly than pass you to someone who will fit the wrong system. If you are genuinely eligible, we will connect you with MCS-certified air-to-air installers. If you are not, you will at least know exactly why.