A heater rated at 1000 watts (1 kilowatt), operating for one hour uses one kilowatt hour (equivalent to 3.6 mega joules) of energy.

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1 HEATPUMPS A heater rated at 1000 watts (1 kilowatt), operating for one hour uses one kilowatt hour (equivalent to 3.6 mega joules) of energy. The LSQ010RC model consumes 0.8 KW of power per hour and supplies 3 KW of energy back. If we assume that 1KW/hour is equal to an average of R1.00/ kilowatt hour then over a period of 24 Hours the LSQ010RC model used R A standard 150 litre geyser element is 3KW/hour thus R72 over a 24 hour period. Heat pump water heating system A hot water heat pump is a very efficient electrical water heater. Heat pumps have been around for decades (some of the hostels at Stellenbosch University for example have used heat pumps for hot water for more than 25 years) and is very widely used in Europe for central heating systems. Their popularity has however increased drastically due to the increase in the price of electricity in the recent years and this increase in demand has brought down the price considerably. A heat pump works like an air conditioning unit in reverse. It extracts heat from the ambient air surrounding it, enabling it to heat the refrigerant which is then compressed causing it to get even hotter. This is then run through a heat exchanger where this thermal energy is drawn off to heat the water and then the refrigerant is allowed to expand again, thus cooling it down and enabling it again to absorb heat from the surrounding air. So electricity is only used to run a fan and compressor and the heat energy is provided indirectly by the sun. A hot water heat pump typically produces up to 4 times more heat energy than the electrical energy it consumes. So by connecting a heat pump to your existing hot water cylinder you can divide your hot water electrical consumption by up to 4.times Unlike solar a heat pump is not directly dependant on the sun and therefore it can operate day and night, winter and summer ensuring you the highest possible saving 24/7.

2 Instead of giving your money away to Eskom, rather make a short term loan at your nearest Bank or any other registered credit provider. With the saving that you get from your heat pump and depending on your water usage you can pay the unit off in 4 to 5 years. The more the geyser is used the more you re saving. We rent out a data logger which records the amount of kilowatt/hour used by the geyser. With this data one can determine +/- what your usage is and how long it will take to pay off. The cost involved for this exercise is R500 excluding VAT for 2 weeks per geyser, Paarl/Wellington area. A standard SIRAC Heat Pump installation amounts to +/- R including VAT for the 1.2KW unit on a 150/200 Liter geyser. It is possible to circulate two separate geysers through one heat pump but there could be heat losses. Please note that for you to claim the rebate from Eskom it is compulsory to issue an electrical certificate of compliance (COC) and a plumbing COC. If you have an updated COC then the new one is just amended to it.

3 Benefits for using a heat pump 1. Quiet operation, with no solar collector on the roof. 2. Uses up to 75% less energy in heating your water 3. Can be used in conjunction with solar heaters. 4. Environmentally friendly. 5. Provides you with 60deg C hot water day/night, winter/summer. 6. Comes with a display to see what temperature the water is. 7. Can be retro-fitted to existing geysers. Check out the savings calculator- NICE The average water usage is about 50L /person /day for domestic and 75L/ person /day for hospitality industry.

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5 Other services done by atbase Electrical Inspection and Testing of industrial and domestic installations. Installation of Heat Pumps for hot water. Installation of domestic Air conditioners. Installation and maintenance of CCTV. Supply of WEG & EML electric motors. Supply & install of variable speed drives. Domestic drain cleaning with high pressure water jet. atbase is registered with the Electrical Contracting Board of South Africa Contact Udo Schwarte for more details at or at