Quote Originally Posted by cffisher View Post
dlotraf33 normaly I don't say much about others shops...but you said the hot air blows out the top....unless you have the duct work to get the coldair inlet off the floor you could get into trouble... gas fumes go to the floor ..I always put counter flow furnaces in shops for that reason.. I'd hate to see somthing happen when it could be prevented.. Stay warm and dry
It is an up flow furnace. Power vent motor, vented to the outside. It is on a platform approx 20" off the floor, (code requires 18"). Return (cold air inlet) in side bottom of furnace. Bottom of return is 24" from the floor. Carbon Monoxide detector in garage. Last year I just did bare minium to get heat (Safely) in the garage. Plenum on top of furnace with 2 vents. The only time my carbon monoxide detector went off, I stupidly forgot about it and fired up the 48 and left running, the garage door was open but detector went off. Damn those things are loud................. BTW I have held HVAC contractors license's in Texas and North Carolina. I may kill myself, but it won't be with a heater................. Oh and I never keep gas cans and such in the garage.