Dual fuel valve with air shutter adjustment
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United States of America Patent
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Jul 28, 2015
Grant Date -
Mar 13, 2014
app pub date -
Mar 8, 2013
filing date -
Sep 13, 2012
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Abstract
A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include a fuel regulator valve including a main pressure regulator to maintain the fuel pressure, a first fuel source connection for connecting the first fuel type to the heater assembly, a second fuel source connection for connecting the second fuel type to the heater assembly, and an air shutter system. The air shutter system introduces air into the fuel discharged at the main burner nozzle before it is supplied to the main burner. The air shutter system can open the air shutter to two or more different positions to vary the amount of air introduced based on the type of fuel supplied.
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