Barometric damper (draft regulator) problems

Heating · Oil Furnaces · printed page 140 (PDF page 141)

Book index entries

Barometric Damper – (Draft Regulator) Problems Burner – Oil – Barometric Damper Problems Draft Regulator Problems Oil Burner – Barometric Damper Problems

Text in the illustration

furnace off
damper closed
furnace running
damper open
draft air
view through flue
barometric damper (draft regulator)
check operation with screwdriver (damper should move freely)
cold air return
hot air supply
oil furnace
side view

Generated explanation

The illustration shows an oil furnace with cold-air return and hot-air supply ducts and a flue connector leading toward a wall. A barometric damper, also called a draft regulator, is installed in the flue connector. A screwdriver is shown checking the damper, with an annotation stating that it should move freely. Inset views through the flue show the damper closed with the furnace off and open to admit draft air with the furnace running. Although the title refers to problems, the drawing illustrates expected operation and an operational check rather than a specific visible failure.

Components

oil furnace oil burner flue connector barometric damper cold-air return duct hot-air supply duct

Materials

sheet metal