Rob From Wisconsin said:
Is not the Cold Air Return a source of combustion air??
I'm a "violator" who had a woodstove installed in our large
bedroom. Also had a CO detector present in there. Never
went off. Also noticed when turned-on the circulation fan on
our furnace that the temp. inside began to drop like a rock.
I surmised that my furnace brings in fresh air from outside
to heat... and there is our source of combustion air, even
when the fan wasn't running.....
Rob
No, the cold air return is the exact opposite of an air supply - it sucks air FROM the room!
It could be construed that, when the furnace is not on, it might allow air from other rooms to be drawn into that room, but that is surely not the intention nor a function which is documented in any way.
CO detector would not usually go off with wood stove....
As mentioned, there are a number of potential problems with space heaters in the bedroom - some of these are contradicted by massive bedrooms (say 500 sq feet or more).
Combustion air
too much heat
"smoking" in the bedroom (heck, if a fire is gonna start, better it be somewhere else and give you time)
Clearance problems - blankets, sheets, clothes thrown about, etc.
There are always exceptions and interpretations of code - for instance, I know of a guy who has 30 cars INSIDE his house! I'll bet there are some codes about that somewhere.....I doubt the car manuals allow it!
Maybe someday we'll get more industry test people and engineers here so they can explain the exact logic behind these codes....although I strongly suspect it is the list above.
The demand has probably been low enough that manufacturers have not petitioned the lab to test in a bedroom and, for instance, label them as "not for use in sleeping areas of less than 600 sq. ft) or something like that.
Best bet for someone who wants to install such a unit is to check with the manufacturers for advice and then go to their building official with manuals, literature, etc. - they are the best ones to determine if your exception is really an exception.
Note, certain gas units are bedroom approved...Jotul Lillehamer for instance.
STRANGELY ENOUGH, HearthStone says on their site:
Can I install a stove in my bedroom?
Most building codes allow woodstoves to be installed in bedrooms. Gas stoves are usually required to be Direct-Vent models. Most codes do not allow Vent-Free stoves over 10,000 BTUs to be installed in bedrooms. Check with your local building inspector for requirements and limitations in your area.
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MSG, time for a phone call to your contacts!