What's the input BTU for an Ultra-Aire wall furnace (single-sided)? Its specification plate/tag is missing.
MOST SINGLES ARE 25.000 BTU TO 35.000 DUEL SIDED ARE 50.000
Testimonial: "I knew it's either 25k or 35k, just not sure which one. I have a room that is big enough for 25k but not 35k. Thanks though!"
most 35 and 25 are the same except they put a bigger orifice hole where gas comes out of main burner. you can change them to 35 or 25 by changing them like propane kits. .Hole is size of 1/8 drill bit . not sure of the two sizes. look for # on that orfice. and email me back
YOU CAN GO WITH A DIRECT VENT HEATER WHICH WILL PULL THE AIR FROM OUTSIDE TO BURN . WE IN CALIFORNIA ARE NOT ALLOWED TO INSTALL WALL HEATERS IN BEDROOM OR SMALL ISOLATED ROOMS
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I am concerned about the circulating/venting air (CVA) requirement. A furnace with 25,000 BTU requires at least 1,250 cubic feet of unenclosed space to operate safely. 35,000 BTU require 1,750 cubic feet of space. A smaller enclosed room may not have enough footage for a higher BTU requirement.
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