| Subtype | Certificate Holder | Heat Pump Type | Certification Body |
|---|---|---|---|
| Grant Aerona3 HPID10R32 | Grant Engineering (UK) Ltd | Outdoor Air/Water | BRE Global Limited |
| Grant Aerona3 HPID13R32 | Grant Engineering (UK) Ltd | Outdoor Air/Water | BRE Global Limited |
| Grant Aerona3 HPID17R32 | Grant Engineering (UK) Ltd | Outdoor Air/Water | BRE Global Limited |
| Grant Aerona3 HPID6R32 | Grant Engineering (UK) Ltd | Outdoor Air/Water | BRE Global Limited |
