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 venters. It is also recommended for use on gas atmospheric appliances where a draft hood cannot 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, which is a frequent requirement with gas. Because it is double-acting, it opens out to relieve positive vent system pressures as low as .01". Draft adjustments using weights are simple and accurate from .01" to .1". This makes the MG-1 an ideal solution for optimizing combustion efficiency and ensuring safe operation in a wide range of gas-fired applications.

Specifications:

Features:

• Nominal Capacity Sq. Inch: 63.6
• Diameter:8-9
• Circumference: 25 1/4 to 28 1/4