Related illustrations

0803

High efficiency furnaces have long heat exchangers

· p. 133

The illustration shows a schematic cutaway of a high-efficiency gas furnace with a long, serpentine primary heat exchanger and a secondary heat exchanger below it. Combustion air enters from above at the burner, whose fl

1607.5

High efficiency gas water heater

· p. 281

A cutaway depicts a high-efficiency gas storage water heater with a burner at the base and a long helical heat exchanger inside the tank. Arrows show combustion products traveling through the heat exchanger and into an e

1607

High efficiency gas water heater

· p. 281

A cutaway depicts an insulated, high-efficiency gas storage water heater with a stainless steel combustion chamber and coiled exhaust piping surrounded by tank water. The burner is located low in the tank, with a forced