Actually, the owners of the forums and website prefer that we NOT revive posts that are over a year old.  Largely, that is because some information in earlier comments may be out of date and/or some products are no longer available.  Thus, when reading an old thread, keep that in mind.

With respect to the later comments, our Mobile Suites is now 8 years old.  We live in it in cold as well as hot temperatures.  Even after 8 years, we are still using the electric fireplace and a couple of free standing, Lasko electric heaters to supplement our heating, leaving the propane use in the furnaces to primarily at night.  Plus, we've been comfortable in our Mobile Suites in temps down as low as -6 degrees.  Keep in mind though, that the Mobile Suites (and Elite Suites) have thicker walls and more insulation, thus helping keep us comfortable.

As for the fireplace being gas, I think I would be a bit leery of that one due to the nature of gas lines and them flexing somewhat as an RV is traveling down the road.  I would probably want to keep the distance and number of connections in gas lines to be as short and few as possible.  And, I'm a guy that has worked with LPG extensively in the past as a user and as one who has transported LPG and delivered LPG to customers.

All in all, take all I say with a grain of salt as it has been a long time since those days.  Today's LPG lines, fittings, and other elements may have evolved far beyond my knowledge.

Terry