Available with or without a burner cover. The EZGas Pro burner converts existing oil-fired boilers, furnaces, and water heaters to natural gas or propane at a fraction of the cost of replacing the appliance. Factory packed with combustion control and gas fuel train. Does not require a refractory liner – fires with or without a combustion chamber. Proven in extensive boiler and furnace testing, these burners will meet your needs for residential gas burning applications. Power gas burner — 50,000 – 275,000 BTUs.