ProCom Dual Fuel Vent-Free Fireplace - 26,000 BTU, Walnut Finish, Model# FBD28T-J-W Heats up to 1000 square feet Uses natural gas or propane No venting is necessary Includes mantel, insert and handpainted refractory log set ot for sale in California or Canada. Check your local regulations on installation restrictions and requirements. Propane use requires 100-lb. tank or larger with two-stage adjustable regulator available from local gas company.