Heat pump with gas furnace when power is out

[ChasB]

I recently had a heat pump installed. My backup is a gas furnace which was all I had prior to the heat pump install. I used to run that furnace off of a generator during a power outage. I'm wondering if there is any potential problem with switching the system to Emergency mode and running the furnace off generator power during a power outage now that a heat pump is in the mix. Seems to me that it would be ok as I assume that is basically what would happen if/when we're on utility power and the heat pump is down, but I'm hoping to get some confirmation or warnings or "hell no" before I set this up. Thanks

 

[Fitter30]

Yes dual fuel heat pumps are ok to run. Just Google dual fuel hp several companies make them. Would a want a switch to kill house power when running the generator as to not back feed into the house.

 

[Sponsor]

 

[ChasB]

Yes dual fuel heat pumps are ok to run. Just Google dual fuel hp several companies make them. Would a want a switch to kill house power when running the generator as to not back feed into the house.

I don't want to run the heat pump during a power outage, just the gas furnace. I would cut the power to the heat pump, power the furnace with the generator and set the system/thermostat to Emergency mode, which as I understand it is heat from the furnace only. My only concern is getting heat during an outage. If there's an outage in warm weather, losing A/C from the heat pump is not a concern.

 

[Fitter30]

I don't want to run the heat pump during a power outage, just the gas furnace. I would cut the power to the heat pump, power the furnace with the generator and set the system/thermostat to Emergency mode, which as I understand it is heat from the furnace only. My only concern is getting heat during an outage. If there's an outage in warm

Gas furnace used as a air handler for heat pump? Or just sitting next to the hp air handler

 

[ChasB]

Gas furnace used as a air handler for heat pump? Or just sitting next to the hp air handler

The gas furnace is the air handler for the heat pump.

 

[Fitter30]

Use a three position switch on off off to separate the house power from generator and a generator recrpical.

https://www.amazon.com/Leviton-5278-CWP-Straight-Flanged-Receptacle/dp/B003ATXIBG/ref=asc_df_B003ATXIBG/?tag=hyprod-20&linkCode=df0&hvadid=167140365824&hvpos=&hvnetw=g&hvrand=6619201476552911129&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=200619&hvtargid=pla-305490632040&psc=1&mcid=faf449da1564367b843c3bb2c936ed25&gclid=EAIaIQobChMI6MT9_9KyhQMVvtLCBB1atQXWEAQYAiABEgJlhvD_BwE

 

[ChasB]

I am planning to use a Reliance Pro/Tran2 transfer switch which I think fits the bill? https://a.co/d/ghr7c5w

 

[Fitter30]

This what i have using a peak 7k watt lp gen. Run well pump, some lights, hw heater, fridge, cook stove lp, heat lp stove, summer 5k window unit for bedroom might not at the same time but have been without for 9 days.

 

[ChasB]

This what i have using a peak 7k watt lp gen. Run well pump, some lights, hw heater, fridge, cook stove lp, heat lp stove, summer 5k window unit for bedroom might not at the same time but have been without for 9 days.
View attachment 98376

Very nice. And thanks for your help!