Sizing For Your Heating Requirements

The same size room or house will have varying heat requirements based on your local environment, building materials and construction. The easiest way to determine your heat loss/gain calculation is to call your HVAC representative. They may employ computer modeling to determine your BTU requirements. Alternatively, you can consult published formulas. A small masonry heater may have an output of between 8,000- 10,000 BTU's per hour. This would heat the average 700-900 sq foot room. A slightly larger heater outputs about 14,000 BTU's- a small home. A mid size heater would be a medium whole-house heater, with an average of 26,000 BTU's per hour. Larger masonry heaters generate around 55,000 BTU's per hour.

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