| Model | UK Boiler Upgrade Scheme Product Eligibility List |
|---|---|
| AWO-AC-AF251.A40 Heat pump | Listed since at least 12 Oct 2026 Certification period ends 31 Jul 2034 |
| AWO-AC-AF251.B40 Heat pump | Listed since at least 12 Oct 2026 Certification period ends 31 Jul 2034 |
"Since at least" means the line was already on the list when our record of it began. Names can be printed differently on each list; a model missing from a column may be listed under another spelling. Report a problem
Changes to Viessmann Climate Solutions SE lines
Our record of Viessmann Climate Solutions SE lines began on 12 Oct 2026. Nothing has changed since. The lists are checked every morning, and any change appears here the same day.
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