Note R — Chapter XXIV · ON THE CONSTRUCTION OF HOUSES.
Reading edition
Many houses are now heated, by a furnace in the cellar, which receives pure air from out of doors, heats it, and sends it into several rooms, while water is evaporated to prevent the air from becoming dry. The most perfect one the writer has seen, is constructed by Mr. Fowler, of Hartford. This method secures well-ventilated rooms, and is very economical, where several rooms are to be warmed.