Geyser is a high efficiency heat pump water heater which connects to an existing electric, gas, oil, or propane water heater tank in a home or business. Geyser makes use of a renewable energy source – the ambient air and humidity in a garage, basement or utility room – to heat the water. Geyser has a smaller carbon footprint than Solar Water Heating and Instant Water Heating.
Hi Keith Before I answer your questions I want to bring to your attention that there are alternatives to installing new solar geysers. You can retro-fit (adapt the intake or outlet) your existing geyser to accommodate a solar collector panel. This option demands the least capital outlay. When the geyser does eventually expire one can normally claim a new geyser under your homeowners insurance. At that time you can pay in the difference and have a solar geyser installed and connected to the then existing collector panel, or alternatively just install the new standard geyser with the adaptor. Here are some answers to your questions. 1. What is the difference between vacuum tube and photo voltaic panels, which is the most efficient and which is best suited for what conditions? There are two options for water heating, namely flat panel collectors or evacuated tube collectors. These collectors simply capture the infra-red and transfer the heat into the water. Photo-voltaic panels on the other hand are used to convert sunlight into electricity so they are not used to heat the water but can be used to drive the pumps that may be required to circulate the water. Of the two collector options the evacuated tube systems are the most efficient but there are some high efficiency flat plate collectors which come close to the efficiency of the evacuated tubes. The evacuated tubes are more efficient in low light conditions and where the ambient temperature is very low as they are extremely well insulated, being comparable to a thermos flask in design – the heat that gets in does not leak out. 2. I see some companies advertising split systems what is this and what are the benefits if any. A split system is where the geyser and the collector are not integrated. They are connected via tubing. The advantage is that the geyser can be housed inside the roof (or any other location) and the collector panel on the roof or some other suitable position. There are also two circulation options: thermo-siphon and pumped/forced circulation. For a thermo-siphon system the hot water rises into the geyser and the cooler water from the bottom of the geyser drains back to the collector panel. This system can function without any electricity but the geyser has to be installed higher than the collector panel and it is less efficient than the forced circulation. The piping also has to be installed accurately to ensure efficient circulation. For pumped systems there are two options: 220V or 12V. The 220V systems are much cheaper and use only about 45W whereas the 12V pumps will require a suitable Photo-voltaic panel. About R 1600.00 more expensive than the 220V option. 3. I work shifts and every second week I need to shower at 4am will the solar geyser still have hot water at that time of the morning. Pumped systems come with a solar controller. Our controller has the option to set three independent heating cycles. This allows you to preset a heating cycle that activate the element if the water temperature drops below a selected set point. The controller will ensure that you will always have hot water and you can select the parameters to optimize it for your situation. 4. How long do these geysers keep the water hot for will a normal family of say 5 to 6 adults not drain all the hot water when they shower/bath in the night and again in the morning and how long do the geysers take to get hot. Solar geysers only collect energy during the day. In order to get away without using electricity the system must be designed for your particular needs. You need to collect enough hot water to use during the night and the following morning. For 5/6 adults showering twice a day you are looking at a larger system e.g. a 250 or 300 litre geyser with two 2m2 collector panels. We also offer a mixer valve that adds cold water as the water leaves the geyser, giving you a constant preset water temperature at the hot tap. This allows you to let the water in the geyser get to a very high temperature and thus reduces the amount of water drawn from the geyser without the risk of scalding. 5. How much affect does the cloudy weather have on these solar geysers? The collectors are affected by cloud cover, but can still collect enough heat in cloudy weather if the system is designed and installed correctly. 6. Do the vacuum tubes not freeze and burst in winter. There are different types of evacuated tubes used in non-integrated systems and they are all either freeze resistant or contain no water at all. Integrated systems are not suitable for frost areas because of what you are mentioning. The header of direct evacuated tube systems and the flat panel systems will both contain water and subject to potential freezing. Our systems come equipped with a dump valve to protect against freezing. The valve opens at 6.1 deg C and draws a small amount of water from the geyser to replace the water in the collector with warm water and then closes again once the temperature rises. The alternative to this is an indirect system where the geyser contains a heat exchanger and the collector circulation system is then filled with a freeze resistant fluid. These systems are quite a bit more expensive. 7. Are these geysers reliable enough to stand alone without having electric geysers as back up? The only difference between a solar geyser and a normal geyser is that a normal geyser has two ports; an inlet and an outlet, whereas a solar geyser has four ports; two additional ports to circulate the water through the collector panel. It is advisable to retain the element (even in a solar geyser) just in case of unanticipated or excessive use of hot water above the systems capability. Our systems include a controller so that the electrical back-up is managed for maximum cost savings. 8. What guarantee and back up service is provided Our panels carry a five year guarantee. The pumps and electrics carry a one year guarantee. If you were to install a solar geyser we have options that carry a ten year guarantee. As a back-up service we will come out and attend to any component within the guarantee period as applicable. 9. What is the difference between direct and indirect systems? See point 6. 10. Can the geyser part of the system be mounted out of sight either in the roof or on a side wall, if this can be done what is the extra cost if any? The components can be mounted just about anywhere if they are pumped. The only additional cost would be the piping and lagging. 11. Does the angle of your roof play a critical role on where and how you install your solar geyser ? The optimum angle is your latitude plus 10° and the panel should be facing north. If the panel cant face north it is better to face more west to collect the afternoon sun when the ambient temperatures are higher. 12 and lastly how do you determine how much money we can save and how can you prove this to us if we install your product. Your electricity consumption for water heating is largely dependent on your system and habits but the norm is about 60% of your Eskom bill. You can expect to save a minimum of 40% of your total electrical consumption. This percentage will be higher for homes that have fewer other electrical consumptions e.g. pools, Jacuzzi’s, sauna’s, under-floor heating etc. We also offer our products in DIY kit form. Please do not hesitate to contact me for further information and prices. Kind regards Erich Gericke
What will it cost to effectively supply Hot water four a family of 4?
To Retrofit your existing geyser with:
KwikHot Evacuated Collector (HT1800/58/20)
AC circulation pump
Solar LCD Controller
Conversion Jet
Installed Price will be *R10,500 after the “Homeowners” rebate.
For a Full Installation,we include:
Solar Geyser 200l
KwikHot Evacuated Collector (HT1800/58/20)
AC circulation pump
Solar LCD Controller
Installed Price will be *R15,000 after the *Homeowners rebate.
*Above prices are estimates based on standard installation costs, the final cost is determined by the complexity of each installation and copper tubing used.
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What are my potential savings?
Approx. R3000/year @ current electricity prices
Approx. R7900/year in 3 years time based on annual electricity increases
How do Evacuated Solar Collectors compare to Flat Plate Collectors?
When comparing efficiency:
On a very hot, clear day there is a marginal difference in performance between conventional flat plate panels and evacuated tubes. However, on cooler days, windy days and high cloud cover days evacuated tubes have a greater advantage. The reasons are:
The vacuum greatly reduces the conductive and convective heat losses. As a result wind and cold temperatures have less effect on the efficiency of the evacuated tube.
Due to the cylindrical shape of the tubes, they passively “track” the sun during the day by presenting themselves perpendicular to the sun throughout the day. Flat plate collectors generally only experience perpendicular exposure around midday.
Averaged over a whole year output of an evacuated tube collector is between 20 to 30% greater than that of a flat plate collector
Other advantages of evacuated tube collectors:
Due to their modular nature, they are easier to install.
They are less susceptible to being blown off your roof in high winds.
They can be serviced without interrupting the system.
If a tube cracks or breaks the whole panel is not lost. A broken tube is easily replaced by any “handy” person. In fact having a few tubes broken would only result in reduced performance. The 2mm glass tubes have been tested against hail stones with success.
http://www.kwikhotsolar.co.za
Cell 0846165005
After several months of investigation, the outcome is what most South Africans expected. The rebate does not have any impact on what the consumer pays but put more money in the suppliers pocket!The fact is most companies that offer the Eskom Solar Rebate (prawns) inflate the price of the entire system. We have done our homework and compared apples with apples only to find that a system that Hi Temp Solar installs is sometimes up to 50% lower priced than that of a system installed by an Eskom accredited company.
How is this possible?
- Companies that are accredited by Eskom must have their complete solar systems tested and approved by SABS even if they have a CE approval. These tests can take up to 6 months and cost anything from R45,000.
- There are at least 1/2 a dozen different installation options which means that each set-up must be tested and approved by SABS.
With just the two above points the costs are astronomical and someone has to pay for this. This cost value is passed onto the consumer which naturally increases the entire installation costs.
So to put this all in a nut shell-
- If we supply you with a solar system that IS NOT Eskom
- Accredited the cost will be on average R10500 incl. VAT.
- If we supply you with a Solar System that IS Eskom Accredited the cost will be on average R17800
You would then need to complete the Eskom Claim form and submit it and wait for about 20-25% rebate. Who know how long the rebate payout will take? When you eventually do get the rebate paid back to you will be in a position where you will still have paid more for a Non Eskom Accredited system! FACT!!!
Eskom rebates on solar water heating systems
Eskom’s Solar Water Heating Programme, introduced at the beginning of 2008, has undergone a major change that brings it into line with international practice.
With immediate effect consumer rebates will now be paid directly to consumers and not to the installing supplier. In order to claim the rebate for the system fitted by approved Eskom suppliers, the purchaser will submit a claim for the rebate to Eskom’s auditors who are facilitating and monitoring the process.
The rebate system is not in anyway exclusive. The requirements of a supplier to sell systems that qualify for rebates are the following:
- Be able to offer a 5 year guarantee
- Submit documents, including public liability and company details
- Have system tested AND passed at the SABS for the following;
- Safety
- Mechanical
- Thermal
The choice of what systems are submitted for testing is solely up to the supplier.
Important: No rebates are paid for systems which were installed before your system, your supplier or your installer were registered on the programme.
Buy Direct from the wholesaler. Guaranteed. Brand new DS Consoles
Nintendo DS Lite Specifications (Choice of Colours)
1) Dimensions (WxDxH): 13.3 cm x 2.2 cm x 7.4 cm
2) Audio Output: Stereo
3) Expansion Slots Total: 1 Nintendo DS cartridge slot, 1 Nintendo Game Boy Advance cartridge slot
3) Processor: 2
4) Video Output: 2D/3D graphics acceleration
5) Support Multi-language (Option): English, French, Japanese, Spanish, Italian
6) Description:
Nintendo DS Lite revolutionizes the way games are played with ultra-bright dual screens and touch-screen technology. Connect wirelessly to Nintendo Wi-Fi Connection and put your skills to the test against players across the room or across the world.
Type of Packing: Color Box
Package Includes: User Manual, AC Charger, Touch Pen
Alidia 0767610533 (E)info@hitemp.co.za
We also sell DS Lite Accesories as well as R4 Revolution mod chips.
http://www.directimports.co.za 0860448367 Dominic or Alidia
People do not like water to be freezing cold. That’s why they invented heating systems for pools. But unfortunately they are usually too expensive for most people to afford.
So instead Hi Temp developed the new HT 50 Solar Heating Pools technique. These elaborate systems are actually not that complicated at all. They harness the power of the ultraviolet light coming from the sun and convert it to useable energy inside panels.
It’s really quite ingenious. Sure it’s effective to heat your pool!
Solar heating is the largest use of solar energy in the world today. Heating your pool with the Hi Temp Solar Heating Panels will extend your swimming season, maximizing the benefits of a swimming pool investment. Hi Temp Solar heating is affordable yet the value of your house escalates markedly + you are using an environmentally friendly energy source, while you conserve our natural resources.
Our Solar Heating Panels are manufactured & designed with individual tubes that allow the roof to breathe and dry out. Unlike most other panels moisture can not build under the panels that could cause premature roof deterioration. More importantly the wind can not get hold of this panel, the solid panel can easily be damaged or even blown from your roof. Our individual tube design also reduces wind load and the need for a complicated mounting system. The tubes are durable and hard-wearing and cannot be corroded by pool chemicals or eroded by water.
Each Hi Temp Solar Heating Panels is 3m x 1.25m or 3.75 m² (smaller sizes on request). They each weigh 7kg and once filled with water about 14kg. The panels are made from durable UV stabilized High Density polyethylene. Operating pressure is 1 BAR (100kpa) and burst pressure is at 17 BAR (1700kpa). Your investment in a solar heating system is protected by a 12 year full warranty against leakage.
NOTE: Rubber panels are about 20% cheaper, yet we do not recommend it due to its limited expected lifespan.
Hi Temp Solar Manufacturers have put together a Swimming Pool heating DIY kit which includes
- 4 x HT50 High Quality Hi Temp Solar Panels
- Installation kit (fittings, valves, glue etc)
- Installation Diagram
- HOT POOL!
all of the above delivered to your door for R3600. Call Matthew on 0860-448367 or visit http://www.hitemp.co.za
Solar heating can be summed up simply by saying it works. This is because that’s exactly correct it does work. You should buy solar water heating panels today, before you even do anything else, it should be your priority. There are many different brands of solar water heating systems, they all however work on exactly the same principal, so no matter which one you get you’ll be making a good purchase, which could actually be defined as an investment.
Solar Panels
If solar heating only does two things for you they be this, firstly they’ll keep you and your water warm and secondly they’ll save you a bunch of cash. That’s the magic of solar power heating, it’ll keep you feeling comfortable all the way to the bank. The main type of solar heat panels used to heat up water work on the principal of thermal heating of the water running through black tubes within the panel itself.
Installing a Solar Heating System
A solar water heating system is very simple to install. However it’s always recommend that you at least get the advice you need from a professional before you attempt doing it your self, otherwise you could just pay them to install it for you. Solar heating will also reduce your electricity bill. This is because solar hot water heating will use the suns energy to do what your electricity is currently doing. What’s more you can get a solar pool heating system installed at the same time, you’ve always dreamed of a warm pool, now you can have it. Pool solar heat will even work in the cooler months.
DIY POOL HEATING SYSTEMS | SOLAR PANELS | HEATPUMPS | INLINE POOL HEATERS
Available in Johannesburg, Cape Town, Bloemfontein, Durban, Port Elizabeth, George & East London
@ Hi Temp we have the widest range of pool heating products for those DIY Handyman Enthusiasts.
We have complete DIY SOLAR PANEL POOL HEATING KITS which include all you need to do a 1st class installation. The panels sell for R480 each plus the freight costs. We deliver to your door with 3 working days. The installation kit is R650. This includes pipe fittings, glue, valves, end caps etc and even a diagram.
For those who prefer the FULL INSTALLATION- WE OFFER THIS TOO! The installation start from around R1000 depending on the no. of panels and the job difficulty and area.
We also have the HEATPUMP option, also AKA Swimming Pool Heater. We have models from 3.8kW-50kW. They are easy to install and all necessary parts are included for teh installation.
Lastly the Electric Inline Heater. 3kw-11kW. Also very easy to install.
So for more info Call Matthew, Glen, Colin or Dominic on 0860448367 (oh) or 0845557227 Glen (AH) for a KWICK QUOTE.
Website:- http://www.hitemp.co.za
