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Dual Fuel Heat Pump in BEopt?

It seems that the only way to model an air-source heat pump is with electric supplemental heat. Is there any way to model it with gas supplemental heat? Or would I just have to convert the supplemental heat kWh to Btus, along with an assumed efficiency for gas?

Thank you for your assistance. Also, it seems that all the BEopt forums from prior years are completely closed. Will they be reopened/archived anywhere?

Dual Fuel Heat Pump in BEopt?

It seems that the only way to model an air-source heat pump is with electric supplemental heat. Is there any way to model it with gas supplemental heat? Or would I just have to convert the supplemental heat kWh to Btus, along with an assumed efficiency for gas?

Thank you for your assistance. Also, it seems that all the BEopt forums from prior years are completely closed. Will they be reopened/archived anywhere?