I agree. I wouldn't consider anything which didn't take the input air from outside with an outside vent for exhaust gases.
The radiant heating system I was looking at from Detroit Radiant products is such a system.
Dale
I agree. I wouldn't consider anything which didn't take the input air from outside with an outside vent for exhaust gases.
The radiant heating system I was looking at from Detroit Radiant products is such a system.
Dale