Cold Air from Outdoors Heats Office Building

Manawatu Times, Volume 64, Issue 88, 15 April 1939, Page 11

Cold Air from Outdoors Heats Office Building

SAN FRANClSCO—Engineers have put one of nature’s paradoxes to work, caused cold outdoor air to be used to heat a two-story office building near j Emeryville—the first commercial application of lt refrigerated heat” in the San Francisco Bay area. According to engineers on hand when Wesstinghou.se office employees moved ( into the new building the same air conditioning system that will cool the building next summer is now keepiug it warm. In hot weather the system re- . moves excess heat units from the inside air and disposes of them outdoors while , in cold weather, the operation is re- { versed; heat units are captured from the cold outside air and released ,

through heating ducts inside the 1 building. j : The system is comparable to the ! reverse of electric refrigeration. In a refrigerator, Freon gas, which boils at j 27 degrees below zero Fahrenheit, is compressed into a liquid in the motor- ( operated compressor, and passing through the freezing unit or evaporator of the refrigerator, it absorbs the heat units in the food chamber as it expands and evaporates into a gas. Then it is compressed again and gives off this supply of heat. Proper insulation keeps them from getting back into the storage chamber. In the novel Wcslingliouse coldheating system, this operation is reversed. Placing the evaporator or “freezing unit” outdoors, the refrfgerant gas is made to go through the same cycle, except that the heat units collected outdoors are routed through the building by means of hot air ducts Right Pirst Time A crowd of boys gathered about the entrance to a circus in a country town, trying to get a glimpse of the interior. A stranger standing near watched them for a few moments, then, walking up to the doorkeeper, said, “Let all these ] boys in, and count them as they pass.” “Twenty-eight, &ir,” said the official when the last one had been admitted. “Good,” said the stranger, as he turned and walked off, “1 guessed the number exactly.” Too Risky Little Billie, being taken out for a treat by his very stout uncle, got on a bus. “If you sit on my knee, Billie,” said Uncle, “I’ll not have to pay any fare lor you.” “I’d rather not, Uncle.” / “Why not?” “ ’Cos every time you breatho 1 fall off!”