Related illustrations

0748

Heat exchanger heat flow

· p. 121

The illustration shows a cutaway of a forced-air gas furnace heat exchanger with ribbon burners beneath multiple curved exchanger sections. Pink arrows trace the combustion-side flow upward through the interiors of the s

0955

Three kinds of draft

· p. 162

Three cross sections compare natural, induced, and forced draft arrangements in forced-air gas furnaces. Each shows a burner, heat exchanger, vent connector, and separate house air blower beneath the heating assembly. Th

0775

House air flow

· p. 127

A cross section of a house illustrates a forced-air heating distribution system with a furnace below the occupied room. Cool air enters a floor-level return grille and travels through return ducts toward the furnace filt

0810

Pulse furnace heat exchanger components

· p. 134

The illustration shows the heat exchanger assembly of a pulse-type condensing gas furnace. A finned combustion chamber connects to a looping tail pipe, with gas and air intakes, a flame sensor, and a spark plug identifie

0711

House air flow

· p. 112

The illustration shows a cross section of a house and a forced-air heating system, with arrows tracing air circulation through the room, ducts, and furnace. Cool room air falls toward a floor-level return grille and is p

0910

Flat plate heat exchanger

· p. 160

An exploded perspective shows a flat plate indirect heat exchanger with a stack of closely spaced plates and four pipe connections on the front plate. Colored arrows illustrate two separate fluid paths through alternatin

0805

Maximizing temperature differences

· p. 133

The illustration shows a high-efficiency gas furnace with a burner, serpentine primary heat exchanger, secondary heat exchanger, and house air blower below. Arrows trace combustion gases through the primary exchanger and

0730

Three kinds of draft

· p. 116

Three cross sections compare natural, induced, and forced draft arrangements in forced-air gas furnaces. The natural-draft furnace has an atmospheric burner, a heat exchanger, and a draft hood admitting dilution air into