The heating system circulator pump, such as the trio of pumps shown at the top of this page, is used to move hot water from the heating boiler out through one or more loops of piping in a building, through heating devices such as radiators, heating baseboards, or convector units, then through return piping back to the heating boiler.
Variable speed pumps vary their speed as the heating load of a building changes throughout the day. The heating load of a building is dependent on factors such as outdoor temperature and thermostat setting. Variable speed pumps are best for zone valve systems with a one system circulator.
Grainger carries multiple types of circulating pump, designed for use in closed loop heat recovery and hydronic systems. Or choose from Grainger's boiler pump selection to handle condensate and steam produced in boiler heating.
Boiler Circulator Pump: The boiler circulator pump induces the flow of hot water through the boiler and the boiler loop. Usually, the boiler circulator pump is controlled by the aquastat . However, there are various levels of control that can be found that control pumps.
A boiler's circulator pump is used to remove hot water from the boiler, and then pass it into heating devices such as the radiator or a convection pipe system. The power of the pump is enough to cause the water to travel right back up to the boiler from the pipework. Using a circulation pump is a ...