Abstract: A room heating device (10) includes a hollow grate (30) for heating water contained therein and for heating air communicating therethrough in response to a fire. The hollow grate (30) has a plurality of interconnected ducts (40-45) and a conduit (50) passing through the ducts (40-45) defining a water and steam containing chamber (48) externally of the conduit (50) and a passage (54) internally of the conduit (50). A fan (92) forces air to be heated through the passage (54) and outwardly to a room. The grate (30) finds particular utility in a fireplace (12) for supporting a plurality of logs (97).