Thursday, 12 May 2011

Pauls Blog: Heat Pump / Solar Energy Solutions

I did some heat calcs for a new home/extension in Jersey today. The results and solutions will be of interest to many.
The Design Heat Loss @ -1C outside and 21C inside = 12.7kW. Allow for Hot Water at the same time, add 3kW = 15.7kW
Allow for Secondary Hot Water circulation at the same time, add 2kW = 17.7kW. There are several heating alternatives, depending on requirements. 1. Ground Source Heat Pump (GSHP) boreholes. 2. GSHP slinkies. 3. GSHP ground panels. 4. Air Source Heat Pump(s).The IVT GSHP comes with ‘direct electric’ backup built into the machine in case of high loss in cold weather or failure of the heat pump and requirement for extra hot water. The Mitsubishi  ASHP are ‘modulating’ as standard, which give flexibility in design and come in 5, 8.5 and 14kW variations. The IVT heat pumps come in outputs 9, 11, 13, 17kW and are ‘on-off’ types, so rely on the direct electric immersion for design flexibility.


  1. Hi Dude,

    Heat pumps have the ability to move heat energy from one environment to another, and in either direction. It is an essential part of a heating and cooling system. One of the biggest advantages of a heat pumps over a standard heating ventilating, and air-conditioning unit is that there's no need to install separate systems to heat and cool your home. Thank you...

    30 Inch Gas Cooktop

  2. It’s great to see technological advancements that can have such a huge impact….solving a problem that is basic to sustaining life, while creating new jobs in the process.Advantages of solar power