The key thing, if dryness is important, is a stack or chimney. The exhaust
turns the heater into a ventilation blower.

Propane and diesel contain lots of hydrogen which is a big part of where the
energy comes from. That's why they call them "hydrocarbons". When hydrogen
burns, the ash is water. If your heater isn't vented, all that water ends
up in the cabin air. You're adding water to the air as fast as the heat is
drying it.

If you can find one, it's really hard to beat one of the miniature solid
fuel stoves. You can break those fake fireplace logs into chunks for quick
heat and then throw some coal on top for long heat and a really traditional
smell.

--

Roger Long



"bligh" wrote in message
...
Hi, I searched for a while but found no cost comparisons. I'm looking
at the Force 10 6k btu model for an uninsulated 23' fiberglass boat
of approx 900cf. It comes in two different models. Is gas cheaper than
diesel in terms of operating costs? Also, many people said neither
fuel will dry the boat out. I don't quite understand how something can
produce heat and not dry things out but I'm sure anything's possible
these days. I'm thinking of a long trip in daily drizzle. Thanks for
your time and smooth sailing everyone.