What size natural gas heater should I get for a 12′ W x18L x7.5H outdoor workshop in Chicago, IL ? Ceiling will probably get R38 and walls R15. Are some models more efficient than others? What manufacturers do you recommend?
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nut,
Here is a good link:
http://www.heatershop.com/btu_calculator.htm
Bill Koustenis
Advanced Automotive Machine
Waldorf Md