Not to my knowledge, NIKK.
The gas furnaces these days usually have fans to deliver the warmed air to the home, in forced air systems, and to provide make-up air for the super efficient models.
A battery pack would not be of much help there.
When we lived in Georgetown, DE, years ago, there was a huge power transformer that had to be replaced and we were going to be without power for 10 hours—during February!
The battery pack ignited the fireplace and we huddled in the living room for ten hours that day under blankets!
Made me appreciate the comforts of modern living.
“The battery pack ignited the fireplace and we huddled in the living room for ten hours that day under blankets!”
It makes me nervous that our new house doesn’t have a single wood stove. The old house had two, and with plenty of power outages to test it, they were able to keep the house reasonably warm.
The new house is closer to town so there’s probably less power outages possible. But still. I don’t feel like a prepared prepper unless I have backup heat.