In addition to the requirements for all heat pump projects:
- integrated controls must be installed in homes with oil or propane backup to qualify for rebates on supplemental (or partial-home) heat pumps. Integrated controls are not required if the backup heating system is heat pumps, electric resistance or ETS.
- integrated controls must be set at or below these maximum switchover temperatures:
| Pre-Existing Heating Fuel | Maximum Switch-Over Temperature |
| Propane | ≤15°F |
| Oil | ≤30°F |
- A heat pump sized for whole home AC, but inadequate for whole home heating is eligible for a partial home heat pump rebate. Integrated controls are required, and installers must design the system to be able to meet the home's heating needs at the defined maximum switch-over temperature above, so that the new heat pump system is heating-ready.
