BUS grants in South West
South West has had 22,385 BUS vouchers issued, 21,598 of them air-to-water and 0 air-to-air. Air-to-air first payments are not yet in the statistics published on 24 Sep 2026.
21,598 air-to-water
Four conditions on a whole-home air-to-air job
- §3.80. Will the heat pump heat the whole home on its own?
- §3.81. Does hot water come from the heat pump or another eligible non-fossil source?
- §3.95. Is a fossil-fuel boiler staying in the system?
- §3.93. Is the product and the installer on an MCS certification path?
| Technology | Applications | Vouchers issued | Redemptions paid |
|---|---|---|---|
| air-to-water | 25,448 | 21,598 | 16,019 |
| air-to-air | 16 | 0 | 0 |
| ground source | 741 | 638 | 465 |
| shared ground loop | 36 | 28 | 21 |
| biomass | 134 | 121 | 108 |
| all technologies | 26,375 | 22,385 | 16,613 |
DESNZ Boiler Upgrade Scheme statistics, August 2026 · May 2022 to August 2026 · n=22385 · Table 1.2A cumulative. Monthly line is Table M1.2, heat pumps grouped, note 25, so it excludes air-to-air. · updated 25 Sep 2026 · version grant-w2d-1 · CSV of the values on this page
BUS-AAHP · p.6 summary table and §§3.80–3.96 · checked 25 Sep 2026. £2,500 for air-to-air heat pumps (AAHP) (in residential properties only) Source
Full engine wording and the measurement caveat
Air-to-air vouchers issued are a published zero in every region of this release.
Better than a national total alone: this region has its own voucher counts by technology.