Related illustrations

1029

Add-on wood furnace (downstream series)

· p. 178

The illustration shows an oil furnace and an add-on wood furnace connected in a downstream series arrangement. Return air enters the main oil furnace, and a connecting duct carries its discharge air downward into the add

1030

Add-on wood furnace (divider plate method)

· p. 178

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 ductwo