Rinnai FC824N 24,000 Btu Vent Free Fan Convector Furnace Natural Gas. FC824N is a flexible, easy to install vent free fan convector with 24KBTU Natural Gas from Rinnai is the perfect solution for rooms and spaces that are hard to heat. 24,000 BTU / (7.0 kW) (maximum). 9.4 in / (239 mm). 19 in / (482 mm).
24 in / (610 mm). 24,000 BTU / (7.0 kW).