Heat pumps an energy efficient solution for hot water in the home or small business
A heat pump offers you a way to use electricity to heat water efficiently. Where a geyser uses three units of electrical energy to produce three units of heat energy, a heat pump converts just one unit of electrical energy into three units of heat energy—hence a saving of 67%.
How does a heat pump work?
A heat pump uses a small amount of energy to move heat from one medium to another, using mechanical work to move heat from a low temperature source to a high temperature sink. There are two types of heat pump systems namely the integrated type and the split type. In the first case the entire system is contained in one unit and consists of a storage tank and a heat pump. In the second configuration the tank is separated from the heat pump.
Heat pumps use the reverse cycle of a refrigeration plant to heat water. In effect, it transfers heat from a source such as air or water to the water which is to be heated. As in other refrigeration equipment, the heat pump system employs an evaporator, a compressor, a condenser, refrigerant gas, and an expansion valve within a closed circuit. Latent heat is given off when the refrigerant gas is liquefied through the condenser and transferred to the surrounding water together with further “sensible” heat loss, effectively raising the temperature of water to a higher temperature.
Eskom offers rebates on residential heat pumps
If you are an individual home owner, game lodge, bed and breakfast operator, a metro, buying in bulk, or a corporate organisation, you can take advantage of Eskom’s heat pump rebate programme.
Rebates only apply when you are retrofitting or replacing existing electrical element geysers. Customers who already have an electrical element geyser with a capacity of between 100 litres and 500 litres are eligible to purchase rebated heat pumps.
How does the heat pump rebate programme work?
Customers can buy a heat pump at rebated cost from the accredited, published registered suppliers (Please see below Heat pump suppliers list) on the programme, and the supplier must perform a full installation.
Heat pumps sold by registered suppliers are already rebated by Eskom, so you don’t have to apply for a rebate personally. You get the rebate upfront, without any delay.
How to get a price, a supplier and a rebate
If you are unable to view the Heat pump suppliers list below – please download the Heat pump suppliers list by clicking on the following link:
*Customers are urged to verify the prices on our database as well as on the pdf document attached before concluding a sale*
Below is a quick step-by-step guide to choosing a supplier and a heat pump, and getting a rebate:
1.Click here to view our Heat pump suppliers list list to see which suppliers and products are registered on the programme.
2. Contact a few suppliers so that you can compare service, quality and costs. (Heat pump suppliers list.)
3. Have them recommend a system to you, based on your home, family size, usage patterns, location and budget. Things to discuss include the size of the system needed, installation cost, maintenance, warranties and rebate.
4. Confirm that the system you choose is rebated (not all systems being sold by suppliers will be on the programme).
5. Follow the normal sales procedure with your chosen supplier.
6. Ensure your old electric geyser is disabled/removed from operation.
7. Complete and sign the required documentation.
The price you pay is the discounted amount, your supplier will get the rebate from Eskom. The rebate scheme is administered by Eskom . Suppliers are briefed to deal directly with Eskom IDM heat pump admin office on rebate claming processes. The Eskom heat pump rebate programme will end in March 2013.
How much is the rebate on a registered heat pump?
If you are unable to view the Heat pump suppliers list below – please download the Heat pump suppliers list by clicking on the following link:
*Customers are urged to verify the prices on our database as well as on the pdf document attached before concluding a sale*
Rebates fall into two categories depending on the size of heat pump purchased:
| Heat pump tank size | Rebate is offered as follows: |
|---|---|
| 301 – 500 litres | R4,320 |
| 100 – 300 litres | R 3,668 |
Please view our Heat pump suppliers list for individual product rebate amounts.
Solar power or heat pump for hot water?
Both solar and heat pump technologies have vast energy efficiency and environmental benefits and are seen by Eskom as complementary technologies on saving energy. Your choice will depend on the capital you have available for the initial purchase, the projected savings and thus payback period you require, and your motivation for updating your method of heating water. Consulting with reputable suppliers of both heat pumps and solar systems will help you to weigh up the alternatives and make the right choice.
Heat pump suppliers list
There are now 3 options in which you can view/download the heat pump list:
- First option: The spread sheet click here to view
- Second option: pdf document click here to view and
- Third option : database list click here to view.
*Customers are urged to verify the prices on our database as well as on the pdf document attached before concluding a sale*
Heat pump presentation
The presentation was presented at the Heat Pump workshop on 18 February 2011. It will be revised as the programme gets updated and as it develops.
Heat pump programme documentation
Contact us
Should you have questions on the heat pump programme, feel free to call the Integrated Demand Management help desk on (011) 800 4744 or the Eskom contact centre on 08600 37566 or sent email to heatpumps@eskom.co.za/idm. Eskom does not support one supplier over another, we are not able to assist you to choose a supplier or a system.