A double acting control for gas fired furnaces and boilers is widely used for conversion burner installations, gas draft-induced appliance operation with mechanical draft inducers or sidewall power vents.

The Field Controls Type MG-1 Barometric Damper Control is recommended for use on gas atmospheric appliances where a draft hood can not be installed, and can improve combustion stability and draft on many gas atmospheric installations with venting problems. The MG-1 provides precise, accurate control of drafts at levels higher than permitted by a standard draft diverter; a frequent requirement with gas. Because it is double-acting, it opens out to relieve positive vent system pressures as low as .001.” Draft adjustments using weights are simple and accurate from .01″ to .1.”

• Solves many venting problems
• Works in a variety of situations including conversion burner installations or gas draft induced appliances
• Double action control
• Includes draft adjustment weights
• Available in 3 different sizes and special order sizes available to 32″
• Includes collar (available in sizes from 4″ to 32″)