Related illustrations

0911

Tankless boiler and water heater

· p. 160

This simplified cutaway depicts a tankless boiler supplying both space heating and domestic hot water. A fan and burner sit above the heating heat exchanger, with intake and exhaust connections at the top of the cabinet.

0872

Outdoor air temperature sensor

· p. 149

A building cross section shows a basement boiler connected by wiring to an air temperature sensor mounted on the interior face of the foundation wall. An exterior temperature probe is mounted on the outside of the wall n

0894

Mixing systems

· p. 154

A house cross section shows a basement boiler supplying a radiator in one room and a finned baseboard heater in an adjacent room. Red supply piping and blue return piping connect both emitters to the boiler, with arrows

0881

Expansion tank water levels

· p. 151

A house cross section shows a boiler connected by red and blue piping to an upstairs radiator, with a horizontal expansion tank near the basement ceiling. Two enlarged tank sections illustrate the water and air volumes u