Field Controls Gas Draft Controls Are Used For Use On Gas Fired Furnaces And Boilers.
Field Controls Gas Draft Controls are solidly manufactured for long lasting durability. Features an MGI that provides precise control of drafts at higher levels than permitted by standard draft diverters for greater reliability. Double acting design allows for opening out to relieve positive vent system pressures as low as .01 inch for superior performance. Draft adjustments using weights are simple and accurate from .01 to .1 inch for ease of use. Recommended for use on gas atmospheric appliances where a draft hood cannot be installed. Can improve combustion stability and draft on many gas atmospheric installations with venting problems for increased versatility. Control sizes are 4, 5, 6, 7, 8 or 9 inch. Collar gauge is 26. Gate and ring gauges are 20, 22 or 24. Dimensions and nominal capacities vary per model.