How much heat does a gas fireplace provide?
Gas fireplaces give off heat, but the amount is dependent on the type of glass used and the BTU of the fireplace. A fireplace with a 21,000 BTU input, at about 70% efficiency, can heat up to 1,000 square feet in the average home. If you plan to use the fireplace as your primary heat source, it is recommended that it be connected to a thermostat.
