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Silver barometric draft control, cylindrical metal housing, 7 inch connection size

Field Controls

Field Controls 2723101 7RC 7" Barometric Draft Control hvac control

SKU CH-8GAZ-P6WME

A 7" barometric draft control calibrated for oil, wood or coal heating systems from .02" to .08" settings

  • Product colorSilver
  • Precise draft regulation for oil, wood or coal systems
  • Adjustable between .02 and .08 inches for exact calibration
  • Standard equipment on many leading furnace and boiler brands
  • Requires instrumentation during installation for accurate setup
  • Silver finish suits residential and commercial heating equipment

7" Barometric Draft Control for Oil, Wood and Coal

The Field Controls 2723101 7RC regulates chimney draft on residential and commercial heating appliances that burn oil, wood or coal. It mounts in the flue pipe and maintains consistent combustion by counteracting excess negative pressure. Installers use instruments to set the control within its calibrated range.

Replaces worn or missing factory draft regulators

Many oil or coal-fired furnaces and boilers leave the factory with this model fitted as standard equipment. The upgrade is worth it when an original unit no longer holds its setting, when combustion tests show unstable draft, or when a new installation requires a field-adjustable control calibrated from .02" to .08" water column.

Fits 7" round flue connections on compatible

The control installs in a standard 7" breeching and requires a draft gauge or manometer for accurate adjustment during commissioning. It frees the burner from hunting caused by over-fire draft swings, improving fuel efficiency and reducing soot formation. Proper chimney height and unrestricted termination remain the installer's responsibility.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $56.99
Pricier than about 55% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameField controls
Product colorSilver

Questions about this item

What size vent or flue opening does the 7" barometric draft control fit?

The 7RC model is built for a seven-inch diameter flue, so the mounting collar matches standard 7" vent pipe used on oil, wood or coal appliances.

Which adjustment step do installers most often skip when setting the draft control?

Using a draft gauge or manometer to verify the setting between .02" and .08" water column; the control is sensitive enough that eyeballing the weight position leads to incorrect draft.

What part of the draft control typically needs checking or replacement after several heating seasons?

The hinge pivot and counter-weight assembly can collect soot or corrosion, so inspect the moving parts annually and replace the weight or hinge pin if they no longer swing freely.

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