Re: [a/s] Furnaces

[Chris Bryant <bryantrv@xxxxxxxxxx>]

	I wouldn't advise going much larger than 30,000 BTU. Why?- Because the
ductwork is designed for a certain amount of back pressure. Adding a much
larger furnace, without adding any extra ducting will cause the furnace to
cycle on the high temperature limit switch, which is no good (the
electronics have a life of x number of cycles, plus they like to be
reasonably cool).

	IIRC- the 24K BTU model requires two of the outlets used, the 30K, three,
and the 34K and 40K all four outlets (the requirements are similar for
bottom discharge units).

	I would actually be tempted to install a 24K BTU model, plus a catalytic
(we had a 30K BTU model in our '75 31", with a cat heater- it kept us warm
in -15º weather).


________
	
	Chris Bryant
	Bryant RV Services
	DeLand, Florida
	mailto:bryantrv@totcon.com