12 v heating ? 275W Bathroom Heater Globe

Annie this would work by using an inverter however a gas heater is probably better. They are around $50 at camping shops. I have one and it works well. Where there is power I use a 240v fan heater but there is no substitute for a camp fire and a quality sleeping bag.

Annie - I would have my doubts about the filament lasting in a lamp on some of the rough roads.
What's wrong with a "good" fire where you roast on the front and freeze on the back? Try sharing the sleeping bag or a bottle of red.

How long do you think the battery will last using the heat lamp and an inverter?

Also what about the Bugs you'll have to contend with!!!

these globes get deadly hot, are dangerous to handle, fragile like eggs, and you ideas is quite frankly,-- MAD. should you persist and fate deals a bad blow, you will be stranded with nowhere to go for help-- get a decent down filled sleeping bag as a last resort, the bottle of red is second best, to a few Guinness and a good partner
John

I read your question and thought "Hey! That's not a bad idea!".

I am sure that it would be safer than using a gas heater in a confined space like a Troopy camper. We have run a gas lamp in similar circumstances as the heat given off by a gas lamp is actually enough to warm up a small area quite efficiently. I have always been very wary of the dangers though.

The other respondents may have a point about the fragility of the lamps though.

Keep us posted if you choose to try it out.

You can by a simple inverter from many camping shops and the battery duration will be a simple enough calculation, dividing the lamp's power consumption into the battery rating - this will be complicated a litte by the inverter inefficiencies, but not much.

Joe

A few calculations for you

150W through an inverter (assume 90% efficiency for the inverter) gives a draw of 13.89 amps.

For an average deep cycle battery of 75 amp/hour(I am also assuming that you have a second deep cycle battery) you could run for 5.5 hours until completely flat.

Hence why people don't go for it :(

I also have a troopy and have found the following helps.

1) Fill side panels with insulating bats (also quietens the thing down immeasurably)
2) Tint windows - this not only cuts down glare but adds an insulating film to ALL that glass.
3) Find a nice friend/husband/wife to sleep with (my prefered option :)

Annie - please don't give up. This a good one. Look at all the replies. It may be a lot easier to start the motor and turn the heater fan onto high.

Annie - you could borrow your sister-in-law's hair dryer and let it run - do two jobs at once!