F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/10 (2006.01) F16L 5/02 (2006.01) F24C 3/00 (2006.01) F24H 9/12 (2006.01)
Patent
CA 2133052
A direct vent gas baseboard heater has field installable concentric air intake tube and exhaust pipe. The intake pipe and exhaust tube can be cut separately from the remainder of the heater, improving the efficiency of installation. They can also be transported aligned with the remainder of the heater, reducing packaging size. The manufacturer can provide a single size of tube and pipe for a variety of installation situations. The tube connects to a base cabinet through a key hole configuration of tabs and cuts, and is twisted until the tabs meet stops in the base cabinet. An extrusion in an air box in the base cabinet is brought against a gasket on a flange of the tube, fixing the tube and sealing it with the air box. The exhaust tube has a threaded end and is threaded into an exhaust outlet in the air box, sealing it to a heat exchanger. A vent seal kit creates a seal assembly having a resiliently deformable ring seal extending into a wall sleeve with straps. The assembly is inserted ring first into a hole in a structure which deforms the seal by bending it back. When the seal emerges through the structure, it rebounds to its original position and the straps are pulled. This brings the seal into contact with the exterior wall, sealing it. Insulation is sprayed from the interior about the wall sleeve, sealing the internal cavity. An O-ring is slipped over the intake tube previously installed on the heater. The intake tube and exhaust pipe are inserted through the wall sleeve, sealed to the wall sleeve by the O-ring. The seal assembly allows the entire installation process to take place from the interior and is particularly advantageous for high-rise installations.
Blake Cassels & Graydon Llp
Hunter Technology Inc.
LandOfFree
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