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How many BTU’s do I need to heat my room?
This is a very common question that you need to answer based on your specific needs before considering the size and type of wood stove, pellet stove, gas stove, fireplace or fireplace insert to purchase.
A BTU (British thermal unit) is the basic measure of heat/thermal energy. One BTU is the amount of energy needed to raise the temperature of 1 pound of water by 1° Fahrenheit. BTU’s are a non-metric unit of measure that is commonly used to rate the heat output of fuels and heating appliances. Most heating systems produce thousands of BTU’s. These numbers should primarily be used as a comparison between systems, and larger, more expensive systems should provide significantly higher BTU’s than smaller ones. When choosing between two fireplaces, inserts, or stoves that are similarly priced, compare the BTU’s for a better gauge of performance. You can figure that you will need 30-35 BTU’s per square feet to adequately heat a home in a warmer climate, and 50-60 BTU’s per square feet to adequately heat a home in a colder climate.