| Subtype | Certificate Holder | Heat Pump Type | Certification Body |
|---|---|---|---|
| Air Source Heat Pump R290-06 | Tulip Wise B.V. | Outdoor Air/Water | BRE Global Limited |
| Air Source Heat Pump R290-12 | Tulip Wise B.V. | Outdoor Air/Water | BRE Global Limited |
| Air Source Heat Pump R290-18 | Tulip Wise B.V. | Outdoor Air/Water | BRE Global Limited |
