What Is A Condensate Pump & Why Do I Need One?

What is a condensate pump and why do I need one?

Condensate pumps are a type of centrifugal pump that is used to collect and disperse the hot water and liquid produced by condensation from heating systems, such as gas and oil condensing boilers, from the production of refrigerated air, such as air conditioning and refrigeration systems, air dehumidifiers and evaporators, and the steam produced by heat exchangers and radiators. A typical example of the use for a condensate pump is where the boiler has been relocated to a basement. Because gravity will not move this water to a drainage system at ground level, a type of water pump known as a condensate pump is required in order to provide easy access.

How does a condensate pump work?

Designed to run intermittently, condensate pumps include a collection tank where condensate (captured condensed liquid) can accumulate. When the liquid in the tank reaches a designated level a float switch activates the pump. The condensate is then pumped out of the tank until the level of liquid leaves room for more condensate collection. Some pumps contain a two-stage switch. As liquid rises to the designated first stage, the pump is activated. If the liquid continues to rise, because the pump has failed or discharge is blocked, a second stage is engaged where the pump may be shut off or an alarm triggered. The system is fully automatic.

Find out more FAQs and info about Condensate Pumps

These features describe the Grundfos Conlift 1 LS Condensate Removal Pump in stock now at Mr Central Heating. This compact LS (lifting station) condensate removal pump is designed specifically for use in applications where the removal of condensate fluid is not possible either by natural drainage and gravity or when the source is located below the backwater level. The professional grade Grundfos pump operates automatically and, when a high water level is reached, activates an overflow switch and external alarm, or it may be set to simply switch off the boiler. Along with a maintenance-free motor, the pump has a ‘smart balance system’ for easy adjustment, and comes with a 6m drain hose and connection adaptors for easy installation. The Grundfos Conlift 1 LS (shown below), has a 2-year manufacturer’s warranty, and a full installation and operation guide is available on the Grundfos site.

View Condensate pumps here

We also have in stock a specially designed plastic boiler condensate pump kit that includes a soakaway waste pipe to safely move acidic waste water into a foul drain that accommodates the used water from toilets, sinks, basins, baths, showers / shower enclosures, bidets, dishwashers and washing machines. Note that if removal to a designated foul drain is not possible, the waste may be passed into a soakaway containing lime chippings that will effectively neutralise the acidity. The condensate water expelled from a condensing boiler is also acidic, with a pH between 3 and 4, and requires a drain waste pipe for the condensate produced during operation. A short length of polymer pipe and a vapour trap will prevent exhaust gases from being expelled into the building. Bulk 21.5mm x 3 metre white, grey or black Condensate Pipe (10 Lengths) with single solvent weld fitting is also in stock.

To accompany the condensate pump, for the trade purchaser Mr Central Heating has a 100 piece overflow/condensate fittings bundle that includes 50 overflow / condense 90 degree elbows, 20 overflow / condense straight couplers, and 30 overflow / condense 45 degree elbow, as well as various other pipe fittings.  From bathroom taps and kitchen sinks, to hot water cylinders, water heaters and booster pumps, you can shop online at Mr Central Heating or visit one of our stores.

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