Related illustrations
1613Tempering valve with tankless coil
· p. 283
The schematic shows a boiler with an internal tankless coil that heats domestic water separately from the boiler's circulating heating water. Domestic cold water enters the coil at 55°F and exits at 180°F. A tempering va
0900Tankless coil
· p. 156
The cutaway diagram shows a tankless domestic water-heating coil installed near the top of a hydronic boiler. Domestic cold water enters the lower end of the finned coil and leaves the upper end as domestic hot water, ab
1610Boilers heat domestic water
· p. 282
The illustration shows a boiler connected to an indirect domestic water heater with a storage tank and internal heat exchanger coil. Red piping and arrows indicate hot boiler water pumped through the coil, while blue pip
0911Tankless 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.
0901Side arm heater
· p. 156
The diagram depicts a hydronic boiler with an externally mounted side arm heater for domestic hot water. Hot boiler water flows from the supply piping through the side arm heater, across the domestic-water coil, and back