Kensa water source heat pumps use lakes, ponds, rivers, and even the sea, to provide ultra-efficient ground source heat pump installations.
Go with the flow
Ground source heat pumps work especially well with water sources, such as lakes, ponds and rivers, as water is an excellent conductor.
Kensa’s heat pumps have been used very effectively to extract heat energy from a variety of water sources to provide heating and hot water to buildings, boats and boat sheds!
- The heat transfer rate from water is higher than that in the ground;
- The water is in close contact with all of the pipe at all times enhancing it’s efficiency;
- The flow/circulation of water provides constant energy replacement;
- The use of a water source removes the need for digging or drilling, reducing the cost and duration of the installation;
- The return temperature to the heat pump is generally 5-6°C higher than ground collectors, increasing the efficiency of the heat pump.
All at sea
Kensa’s very first heat pump in 1999 was designed to be installed on board a boat and uses sea water as the energy source. Indeed, all Tamar Class RNLI lifeboats have Kensa heat pump systems on board to keep the crew comfortable in high or low temperature conditions
Many RNLI life boat stations also use Kensa sea water sourced heat pumps to heat the buildings.
Typically water collectors take the form of closed loop Kensa pond mats constructed of slinky pipe attached to corrosion resistant stainless steel frames which are sunk to the bottom of the water source, however open loop methods can be employed, although consideration of the corrosive nature of saltwater on the ground source heat pump should be considered if open loop is to be used.
Boreholes can also be used to extract energy in certain uses of water sources.Read more
Mr Clarke replaced his gas boiler with a Kensa 24kW Single Phase Twin Compressor to harness heat energy from a nearby lake to provide space heating and domestic hot water (DHW) to his Grade 2 listed farmhouse. Key facts: 24kW Single Phase Twin Compressor Replaced mains gas boiler Large, Grade 2 listed farmhouse Highly efficient water source…
Case study: Cotswold Water Park, Gateway Visitors Centre Carbon neutral centre uses lake system to heat & cool building
Case study: Lee Valley White Water Centre Lee Valley White Water Centre attracts avid water sport enthusiasts as well as a large body of free renewable energy, which is now the heat source for the Centre’s buildings courtesy of a Kensa ground source heat pump!
Promoting best practice with CIBSE