The chart below shows the approximate house square footage that a gas fireplace will heat. These are just approximate figures because the actual square footage is affected by factors like house insulation, ceiling height and floor layout.
Fireplace BTUs Square feet of coverage
15000 803 16000 857 17000 910 18000 964 19000 1017 20000 1071 21000 1124 22000 1178 23000 1231 24000 1285 25000 1338 26000 1392 27000 1445 28000 1499 29000 1552 30000 1606 31000 1660 32000 1713 33000 1767 34000 1820 35000 1874 36000 1927 37000 1981 38000 2034 39000 2088 40000 2141 Most in-wall gas fireplaces are rated about 18,000 BTU. Most gas fireplace inserts in a brick chimney are rated between 30,000 BTUs and 40,000 BTUs. We look forward to servicing all your gas fireplace needs.
Vancouver Washington Affordable Gas Fireplaces Sales and Service