Explanation

A heat pump works inversely to an air conditioning unit. It transfers heat from air to the water stored inside the heater through a heat exchange system. By replacing electric elements, boilers and geysers with a SA Heat Pump you will save up to 67% on hot water heating costs.

How does a heat pump work?

  • Substantial savings in hot water related expenses over the long term.
  • Heat Pumps qualify for the new SANS 10400-XA building requirement.
  • It's an environmentally friendly hot water option given the reduction in greenhouse gas emissions through less energy requirements.
  • A heat pump is still effective even in low temperatures.
  • There is limited life style change when installing heat pumps as they can heat water at any given time.
  • No roof space or panels needed.
  • Limited visual impact as no ponds are required.

Case studies

SA Heat Pump Engineers was awarded the Harmony Gold DSM heat pump project in conjunction with Eskom. The target set by Eskom and Harmony was a demand reduction of 7MW on the electricity grid. The project commenced on 1 October 2010 and was completed 30 September 2012.

We installed 222 BWH industrial heat pumps at 18 mines in the Welkom area. This is by far the largest DSM heat pump project completed in South Africa. Highlights of the savings are as follows:

  • Electricity savings of R2.4 million per month
  • Project capital payback period of 10 months
  • Project net present value of R97 million
  • Monthly electrical savings of 4,8 GWh

The above data was independently audited by the University of Pretoria.