Size is important. An average room requires 8K to 10K BTU capacity. Proper venting is absolutely crucial !
A gas heater or a stove? They are different appliances and should only be used for their intended purpose. Beware of unvented gas heaters as they can seriously degrade the air quality when operated.
I've got one brand new i never used for 50.00
Home Depot on linwood BLD
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