You're in good hands with SolarTech as our Solar heating systems have passed SABS mechanical and thermal testing and are approved for Eskom rebates, with a national footprint of 40 offices and over 1500 successful domestic installations since 2006,
We look forward to becoming your renewable energy partner in South Africa!
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Heat water for your home using energy from the sun for FREE!
Solar heating systems uses the suns radiation to warm your residential hot water.
Our solar heating systems use solar panels or collectors that are fitted to your roof. These collect the suns radiant heat and use it to heat the water which is stored in a hot water tank.
There are two types of solar water heating panels, they are evacuated tubes and flat plate collectors. Flat plate collectors can be fixed on the top of your roof tiles.
Electricity can be used as a back up to heat the water to reach the temperature set by the heaters thermostat when the solar water heating system does not reach the required temperature.
The benefits of using solar water heating
- Free Hot water throughout the year in our sunny south African climate.
- Save up to 50% of your Eskom electricity bill.
- Eskom will also give a rebate of between R2000 to R5000 on new installations & upgrades.
- Your are cutting your carbon footprint as solar hot water is a green & renewable.
- It will also save up to 580kg of CO2 emissions.
You also have the option of upgrading your existing KWIKOT water heater or Retrofit - Most traditional heaters and hot water heating systems are compatible with solar heating systems. Our competent accredited nation wide installers will be able to assess your home and help you choose the best set-up for the most efficient use of Solar Energy. Maintenance costs are low. Our solar heating systems come with a 5 year warranty and require little maintenance.
Questions & Answers
- How does solar heater works?
solar heating relies on warm water rising, a phenomenon known as natural convection, to circulate water through the evacuated glass tube collector and to the tank. Hot water storage tank is located above the absorber evacuated glass tubes. As water in the absorber heats, it becomes lighter and naturally rises into the tank above. Meanwhile, cooler water in the tank flows downwards into the absorber, thus causing circulation throughout the system.
- Can the solar heater heat water to a high enough temperature?
Yes, in sunny days solar heaters can bring water to boiling point.
- What happens if the Evacuated Glass Tubes are damaged or broken?
Firstly, tubes are very strong and not easily broken, but if the worst should happen, solar tubes can be replaced very easily. They are available though your local solar heater distributor. It is recommended that broken tubes be replaced immediately.
- Is solar heating a viable alternative to gas or electricity?
Yes, solar heating system is an alternative to gas or electricity boosted geysers in the some areas of Pakistan. Averaged over a year, a correctly sized solar heating system can provide 80% to 100% of a household's hot water needs. The hot water system can easily be automated with the natural gas boosted or electric geyser so hot water is guaranteed regardless of sunlight levels.
- How long will it take to recoup my investment?
Solar Geysers are much more affordable than many other solar hot water heaters. For a household of 4, the price of a full system may not be too much more than a new electric or gas boosted geysers. Depending on your location (solar levels) and current hot water usage the annual electricity or gas saving will differ. However in a normal household that spends 40% of its electricity bill on hot water heating, the full cost of the purchase may be recouped as quickly as 3-4 years in reduced bills. You will definitely make considerable savings during the life of the Solar Geyser.
- Can solar heating be use in cold conditions?
Yes, solar heating can be used in temperatures as low as -10° C, although performance is reduced in such extreme conditions but Good heat output is still achieved in mild sub-zero conditions as long as there is sunlight.
- Will water be heated on a cloudy day?
Yes. Although the heat output of the solar collector is reduced on overcast days it will still be able to provide heating. If it is a heavily clouded day or raining, then more gas or electric boosting may be required to maintain water at the required temperature. This system will be automated with the existing natural gas boosted geyser or electric geyser, so you don't have to worry about running out of hot water on a rainy day.
- Are Evacuated Glass Tubes affected by frost?
No. The solar heater has been tested to minus 10º C and works extremely efficiently in cold climates.
- Can I use solar heater with my existing geyser (Hot water System)?
Normally yes. Simple retrofit valves can often be used to allow solar heater to connect to your existing geyser; the hot water system can easily be automated so hot water is guaranteed regardless of sunlight levels.
- How can I be sure of the quality and performance of your products?
The range of solar heating systems meet the rigorous tests set by the relevant industry standards and are made from the high quality components backed by generous warranties. At the end of the day, the quality and reliability of our products and the service we provide as a customer is best demonstrated by our customers.
- Who will install the solar heater on my roof?
The solar heating system should be fitted by an authorized and registered SolarTech dealer will ensure it is positioned correctly.
- What maintenance of the solar heater is required?
Under normal circumstances no maintenance of the system is required. Due to the shape of the tubes regular rainfall and wind should keep the tubes clean. Should a tube even be broken it should be replaced. This, however, is an inexpensive and easy job.
- Will the solar heater be a fire hazard during hot, dry weather?
No. The Solar Geyser's components are all high temperature rated and non-flammable so even during strong sunlight, the system will not catch a light or give off any sparks. The majority of the Solar Geyser's components are stainless steel, aluminium and glass.
- Can solar heating be used for a large scale hot water production?
Yes. solar heating can be connected in series or parallel to provide large scale hot water production for a commercial setting such as a school, hotel or office building. There is really no limit to the size of the system, however collectors must be installed in banks of no more than 150 tubes (in series), otherwise the water may boil.
- Can I heat my swimming pool using a solar heater?
solar heater Collectors are high temperature collectors, and are therefore ideal for spas, as the volume of water is small and temperature requirements high. For swimming pools, however, the volume of water is large and the temperature rise required is only several degrees. The cost of heating a pool using evacuated glass tube collectors (for domestic purposes) may be prohibitively high. For large scale swimming pools, however, solar heating collectors may be an extremely viable supplement to electricity.
- Are evacuated glass tube collectors more efficient than flat plate collectors?
Averaged over a year evacuated glass tube collector have a clear advantage. The key points are:
1.Due to the cylindrical shape of the evacuated tube, the solar tubes are able to passively track the sun throughout the day. Flat plate collector only provide peak energy output at midday when the sun is perpendicular to the collector's surface.
2.Air is evacuated from the solar evacuated glass tubes to form a vacuum. This greatly reduces conductive and convective heat loss from the interior of the tube. As a result wind and cold temperatures have less effect on the efficiency of the evacuated tube collector.
3.solar heater Collectors can often be used in subzero temperatures without the system sustaining damage. Flat plate systems often require expensive and complicated "antifreeze" systems to be installed.
4.Evacuated tubes are strong, long lasting, and should one be broken, inexpensive and easy to replace. If a flat plate collector panel is damaged the whole panel must be replaced.
5.Due to the high efficiency absorption of solar radiation even during overcast conditions, combined with excellent insulative properties of the solar tube, solar tube collectors can heat water all year round. (backup from gas and electricity is still required).
6.Due to the various advantages of evacuated tube collector over flat plate collectors, a smaller collector can be used to provide the same heating performance. For example, a standard household of 4-5 people would usually require a 150-250L water storage tank. Depending on your location, only 30 evacuated tubes would be required to provide all summer hot water needs and a large percentage in other seasons.
7.Flat plate solar collectors can produce similar heat output to evacuated tube collectors, but generally only during warm, still, sunny conditions. When averaged over an entire year, evacuated tube collector heat output per net m2 of absorber area, is between 25% to 50% greater that a flat plate collector.
- Where can I purchase a solar heating system?
Solar Geysers are available through our official dealer network. Click here to find your closest distributor.
- How long does it take to install my solar heater?
Installation is easy. Because solar heating systems are lightweight, modular and include comprehensive installation instructions, you can expect an average installation to take 3-8 hours, depending on if you are retrofitting an existing home or new home.
- Are solar heaters expensive?
No. In the long term, a solar heater can save you up to 90% of your household's hot water electricity expenses and over a 20 year period is considerably cheaper than buying a straight electric or gas geyser due to the much lower running costs of a solar heater system.
- How many users can a solar heater service?
There are several types and sizes of solar heating systems available depending on the number of bathrooms and people living in the home. There are systems to suit every home, Please view a list of solar heater sizes.
- How does using solar help the environment?
Using solar and other forms of renewable energy reduces reliance on fossil fuels for energy production, thus directly reducing CO2 emissions. CO2 emissions contribute to global warming, an environmental issue which is now of great concern. The average household can reduce CO2 emissions by as much as 20% by installing a solar heater System.
Eskom Installation Rebates
Installing a SolarTech solar heating system by one of our accredited dealers will entitle you to the following rebate from Eskom as well as save you 90% on your water heating bill. Eskom is mandated by the National Energy Regulator of South Africa to implement energy efficiency measures that would ensure the optimal use of the available electricity in the country. In order to meet the growing demand for electricity which as resulted from the exceptional economic growth in the country in recent years, Eskom will also pursue energy and demand savings on a large scale to mitigate system challenges. Having a solar heating system on your roof is like having your own mini-power station, except that once the system has been paid for you will get your hot water free of charge. Eskom is doing this to try to meet the government's target of 10 000 Gigawatt hours of renewable energy generation by 2013. Eskom's involvement is aimed as at providing an incentive to the customer towards buying a more efficient water heating Solution.
K150i installation Rebate: R1,941
K150d Installation Rebate: R2,171
K200i Installation Rebate: R2,084
K200d Installation Rebate: TBA
K200ix Installation Rebate: R3,663
K200dx Installation Rebate: R3,900
K250i Installation Rebate: R3,866
K250d Installation Rebate: R4,720
HOMEMAKERS EXPO AT THE CTCC
Solartech solar heating recently hosted a solar heating promotion stand at the Cape Town Convention Center From the 2nd to the 6th of September. Record crowds in excess of 10,000 people visited this year’s show, which once again shows the pathology of cocooning, in times of recession. Downturns are defined in terms of standard retail sales, but in actual fact the public continue to spend money, just elsewhere, in this case on improving their home! This year’s EXPO saw seven players from the solar heating market. SolarTech has great visibility, and ensured our stand looked great, with two solar geysers on display, our Flat Plate K150 series and an example of the EVT Retrofit system. What was interesting was the fact that more people seemed to be informed, and were asking better buying questions, like 1. When can you install 2. How long will it take 3. Can you use my existing system 4. How much money will I save 5. Do you have offices in my area
Walking around the EXPO, I was surprised to see how many solar heating industry representatives were there, in fact we represented the largest industry sector there. All in all it was a great week, in excess of 300 qualified leads, and once again SolarTech proved itself to be the bench mark….