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2. Circulator pump - Wikipedia

   en.wikipedia.org/wiki/Circulator_pump

   A circulator pump for home use. A circulator pump or circulating pump is a specific type of pump used to circulate gases, liquids, or slurries in a closed circuit with small elevation changes. They are commonly found circulating water in a hydronic heating or cooling system.

3. High efficiency glandless circulating pump - Wikipedia

   en.wikipedia.org/wiki/High_efficiency_glandless...

   This pump has recently become the new standard in both commercial and residential buildings across the European Union due to a recent ordinance by the European ErP (Eco-Design) Directive. The ErP directive began enforcing this new standard of regulation of these pumps 1 January 2013 and will become even stricter on efficiency standards on 1 ...

4. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   A district heating system uses centrally located boilers or water heaters and circulates heat energy to individual customers by circulating hot water or steam. This has the advantage of a central highly efficient energy converter that can use the best available pollution controls, and that is professionally operated.

5. Chiller boiler system - Wikipedia

   en.wikipedia.org/wiki/Chiller_boiler_system

   A chiller boiler system is a hydronic system. It uses water instead of air to heat and cool a structure. A properly designed hydronic system is usually more efficient than a standard forced air system. [1] Chiller boiler systems use radiant heating and cooling or fan coil systems to condition a home or business. This allows for multiple zones ...

6. Forced circulation boiler - Wikipedia

   en.wikipedia.org/wiki/Forced_circulation_boiler

   A forced circulation boiler is a boiler where a pump is used to circulate water inside the boiler. This differs from a natural circulation boiler which relies on current density to circulate water inside the boiler. In some forced circulation boilers, the water is circulated at twenty times the rate of evaporation. [1]

7. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   On-demand recirculating pumps are often used to minimize hot water wait times from tankless water heaters and save water being wasted down the drain. On-demand recirculating pumps are activated by push-button or other sensor. A water contacting temperature probe installed at the hot water usage point signals the pump to stop.