For a 33' travel trailer, how much battery usage can I expect from the furnace? They are calling for low 40s over night and the women like it warm. The only site left was no electric so I booked it. I have 2 4 year old 12v batteries and led lamps inside. I borrowed a small 2KW Honda inverter generator from a vendor to charge it up without the racket of my bigger unit during the day, but don't think I should run it during the night. It's a pretty quiet unit but you can still hear it running.Is it safe to assume I can get through the night off battery power? I know they make small propane heaters but it's pretty rare to get stuck camping without power so I don't think it's money well spent in our case. If I can get one night and charge in the am for the next night I think it should be fine.

If your trailer is fairly well insulated, the 2 batteries should work for a full night, with 40s being the low temp. I'd check them with a meter, after the first night, to make sure they aren't going below 50 percent of charge. If above 50, your good, below, I'd use the Honda, rather than ruin the batteries.Jerry

A "small 2k Honda" ? Really? you will be good to go. Run your heater at night and then use the Honda to charge the batteries during the day. I have camped this way for years.

“...but it's pretty rare to get stuck camping without power.” Stuck? No “racket” from a solar system. Thirty-three foot TT will have lots of room for panels. Adequate batteries and solar...no issue regarding running the furnace.

4 year old batteries?How warm do you want it inside?In my mind, best case is you will make it overnight. Buy new batteries, and you could get two days.

Go into the evening with as much charge as possible and you should make it. Use a digital meter to monitor the battery voltage. Id check the batteries with a hydrometer.

Furnace while boondocking. | Good Sam Community

goducks10
Explorer
Oct 26, 2018
LOL, we never run anything at night in the low 40's. A thick quilt and some blankets and we're good to go. Fire up the Mr Heater Little Buddy in the morning.
I hate running the furnace. It draws down the batteries and is noisy. Might run it sometimes in the morning for 10 mins or so to take off the chill.
azrving
Explorer
Oct 26, 2018
Go into the evening with as much charge as possible and you should make it. Use a digital meter to monitor the battery voltage. Id check the batteries with a hydrometer.
Bionic_Man
Explorer
Oct 26, 2018
4 year old batteries?

How warm do you want it inside?

In my mind, best case is you will make it overnight. Buy new batteries, and you could get two days.
Lwiddis
Explorer II
Oct 26, 2018
“...but it's pretty rare to get stuck camping without power.” Stuck?

No “racket” from a solar system. Thirty-three foot TT will have lots of room for panels. Adequate batteries and solar...no issue regarding running the furnace.
aftermath
Explorer III
Oct 26, 2018
A "small 2k Honda" ? Really? you will be good to go. Run your heater at night and then use the Honda to charge the batteries during the day. I have camped this way for years.
MFL
Nomad II
Oct 26, 2018
If your trailer is fairly well insulated, the 2 batteries should work for a full night, with 40s being the low temp. I'd check them with a meter, after the first night, to make sure they aren't going below 50 percent of charge. If above 50, your good, below, I'd use the Honda, rather than ruin the batteries.

Jerry

Forum Discussion

Furnace while boondocking.

About Travel Trailer Group

Related Content

Atwood furnace

Furnace Help

Boondocking Devastation

Boondocking Etiquette

Boondock towing