[Irish Mist]

I know there are a ton of variables but generally should a battery be able to run the furnace through the night ? First night on the road and realized the battery is no good Thanks to Mr. Honda all is fine for now.. but got me thinking if a good battery would run the furnace for a night. It is 32 and has been on for an hour but with the help of the electric heater should be up to temp soon.. Just wondering if anyone could comment from real live experience.

Thank you