Products > Utilities: Heating

Boiler

Boiler: A pressurized system in which water is vaporized to steam by heat transferred from a source of higher temperature. It consists of two principal parts: the furnace, which provides heat, usually by burning a fuel, and the boiler proper, a device in which the heat changes water into steam.

Things to Consider When Purchasing This Product:

Fuel type (gas or oil); Rated tested and built per AMBA, UL, and ASME; Number of passes; Tube orientation; Area of heating surface; Rated BHP; Base material; Boiler trim --- water column, feedwater pump control, low-water cutoff, aux. steam pressure gauges, relief valves, controls near water column; Front and rear doors hinges, seals and fastening method; Doors for cleaning; Observation port; Manhole for boilers > 48"; Refractory and insulation; Exhaust vent and thermometer; Insulation jacket on boiler shell (typically fiberglass); Finish (typically hard enamel); Burner type; Gas pilot type; Oil pump capacity; Fuel oil piping should include regulators, metering controls, solenoid shutoff valves, pressure gauges, and low oil-pressure switch; Gas burner piping should include motor-operated primary gas shut-off valve with proof-of-closure switch and plugged leakage-test connection, and lubricated butterfly valve at front of gas train for testing, high and low gas-pressure switches; Control system, Sensors; Flame supervision and status indicators; Low-fire cutoff; High/low limits programmable from keyboard; Modem for remote monitoring; Optional lead/lag and oxygen trim adjustments; Warranty