As Lady Fitz might say, please support your statements with research or numbers. Please provide links as well.
jcthorne wrote:
Just an FYI since everyone here sees intent on throwing the numbers around, Attwood propane heaters are actually closer to %60 efficient. Anything over 75% would require a condensing exhaust which is FAR beyond the Attwood's simple design. The RV propane furncaces are very compact and use forced air induction but at the expense of low efficiency. Lots of the BTUS are going right out the exhaust vent.