Add-on wood furnace (divider plate method)

Heating · Furnaces and Boilers · printed page 178 (PDF page 179)

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Book index entries

Add-on Wood Furnace (Divider Plate Method)Add-on – Divider Plate Method Add-on – (Divider Plate Method)Wood Furnace

Text in the illustration

supply
return
divider plate
oil furnace
add-on wood furnace
an add-on wood furnace should always be installed downstream of the main furnace so that the main furnace won't overheat
this is a series rather than parallel arrangement - all house air goes through the oil furnace then the wood furnace (only one furnace is on at a time)
this is another acceptable method of installing an add-on furnace

Generated explanation

The illustration shows an oil furnace connected in series with an add-on wood furnace using the divider plate method. Return air enters above the oil furnace, and arrows show air routed downward through connecting ductwork toward the wood furnace. Air leaving the top of the wood furnace travels through an upper connecting duct to the house supply duct. A divider plate separates the airflow paths above the oil furnace. The annotations identify this as an acceptable installation, with the wood furnace downstream to prevent overheating of the main furnace and only one furnace operating at a time.

Components

oil furnace add-on wood furnace oil burner return air duct supply air duct connecting ductwork divider plate wood furnace loading door

Materials

sheet metal