BuySolarSystems.com

42 White Bridge Road
Middletown, New York 10940

(845) 629-1317

FAQ's

 

1. Is solar water heating a viable alternative to gas or electricity?

Solar should be seen as a supplement to gas or electric. Solar cannot replace the need for gas or electric heating as there are some days when there is little sunlight. When averaged over a year, a correctly sized solar system can provide approximately 80% of your household’s hot water needs. Providing more than this is unadvisable and too much heat will be produced in the summer and cause the water to boil. The hot water system can easily be automated so hot water is guaranteed regardless of sunlight levels.

2. How long will it take to recoup my investment?

SUNPEAK USA Inc. Solar collectors are much more affordable than many other solar hot water heaters. Depending on your location (solar levels) and current hot water usage, the annual electricity or gas savings will differ. However in a normal household that spends 30% of its electricity bill on hot water heating, the full cost of the purchase may be recouped as quickly as 2 to 3 years in reduced bills. You will have considerable savings over the life of the solar hot water heater.

It is possible to work out the payback period of your new SUNPEAK USA Inc. Solar Hot Water Heater. The following is an example of a Payback Period Calculation: *These cost figures are based off of the most current data and will change from time to time. Please access the payback tab for the most current price and incentive calculations!

SUNPEAK USA INC. Solar Hot Water Heater: www.gtc-solar.com/tools.html 65 Gallon Pre-Packaged System $2,650.00
Absorber Area 3.8 m2 Installation/balance $1,320.00
65 Gallon
System Insolation level 4.89 @ San Francisco Total Installed Cost $3,970.00
Electrical cost .14 cents kwh *see below *
Federal/State Incentives: California ($1,500.00 rebate) ($1,500.00)
Federal Res. (30% tax rebate) ($1,191.00)
Cost of System after Incentives $1,279.00
Estimated Annual Savings: $612.00
Electrical Cost Increase Rate: Not Figured
Payback Period Calculation Chart: The system pays for itself in 3 years and 1 month, and then it pays you $612.00 or more each year for the lifetime of the unit.
Year Annual Savings Remaining System Cost
Year 1 $612.00 $1,279.00
Year 2 $612.00 $667.00
Year 3 $612.00 $55.00
Year 4 $612.00 $-557.00

The SUNPEAK USA Inc. Solar Hot Water Heater in the above example has a payback period of just over 3 years. As the electrical prices increase you will start saving money at an earlier date. ***This is only an example as your savings and payback period will vary.

3. Can solar collectors be used in cold conditions?

Yes. Our collectors can be used in temperatures as low as -30 C, although performance is greatly reduced in such extreme conditions. Exceptional heat output is still achieved in mild sub-zero conditions.

4. What happens if one of the solar tubes is broken?

Your vacuum tubes are very strong and not easily broken, but if a breakage should happen, solar tubes can be replaced very easily. They are inexpensive and available from SUNPEAK USA Inc. The solar collectors can operate with several broken tubes, but the efficiency will be reduced, so it is recommended that broken tubes be replaced immediately.

5. 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 complete overcast day or raining, then more gas/oil or electric boost may be required to maintain the water at the required temperature. The system is automated so you don’t have to worry about running out of hot water on a rainy day.

6. Can I use a solar collector with my existing hot water system?

Generally yes! Your existing tank can be used in series with the tank that comes with the package. This allows a larger storage capacity and hence more hot water and now you are using the Solar tank as a preheater to your normal hot water system.

7. Are the solar collectors noticeable on the roof?

Yes. You are telling the world that you care about the environment and they will be jealous of your investment and want one. This will become a status symbol.

8. Can solar collectors be mounted on a flat surface?

Yes, the system comes with a roof assembly that elevates the collector to the appropriate angle to achieve the most efficiency in your latitude or distance from the equator. The collector should be installed at a minimum of a 20° angle to ensure optimal heat pipe operation.

9. How do I protect my solar system during subzero temperatures?

The system uses propylene glycol which is of a non- toxic food grade type and is used as antifreeze. You can purchase this high grade product from SUNPEAK USA Inc. on this web site.

10. Will the solar collector be a fire hazard during hot, dry weather?

No. The solar collector’s components are all high temperature rated and non-flammable. If for some reason the electricity fails and your circulation pump is inoperative the unit will hit the stagnation point (a condition when the fluid in the heat pipe hits maximum operating temperature). During this high temperature the system will not catch fire nor give off any sparks due to the temperature relief valve that is incorporated into the system to prevent the system from overheating and protect your components.

11. Can the solar collector heat water to a high enough temperature?

Yes, in good weather the solar collector can bring water up to boiling point. This is not necessary and the Sunpeak USA Inc. systems are designed to provide a daily temperature rise of around 25-30oC (45-54oF) in the summer.

12. Do all solar water heaters dissipate heat?

All solar and conventional water heaters do dissipate heat and in so doing cool down the water held in the storage tank. Most of the dissipated heat is lost through the insulation that surrounds the storage tank and the copper tubing (plumbers call this a “line set”) that runs from the solar panels to the solar tank. If energy is not added to the stored water eventually the water temperature will return to equal that of the surrounding air. When the sun is heating the solar collectors, most of the solar energy is transferred via the heat transfer fluid “propylene glycol” through the line set into the storage tank lower coils to heat the water. The balance is lost or dissipated back to the surrounding air. When the sun is not out, the solar collector cools to a temperature below that of the water in the storage tank and will not contribute to any heat dissipation because the pump system is automatically selected to the off position. After extended periods of hot and sunny weather and during which there has been negligible hot water use, a solar water heater can “stagnate" or heat to an unsafe condition. {SUNPEAK USA Inc. has incorporated a Heat Dissipater or radiator safety feature which solves the problem of stagnation inherent to solar collectors.} Under stagnation conditions, the temperature of the water in the storage tank is hot and stable. This happens because the amount of heat dissipated through the storage tank insulation is equal to the amount of solar energy transferred into the water in the storage tank from the solar collectors. The temperature at which stagnation occurs ("the stagnation temperature") is a critical design parameter for a solar water heater. Other companies allow their units to stagnate which causes the water in an open loop system or glycol in a closed loop system to boil off through the over temperature/over pressure valve.

13. How does a heat dissipater control excessive heat buildup?

Heat dissipaters are radiator type units designed to take the excess heat buildup in your solar system generally caused by very sunny, long days, when the home owner is away on vacation, (lack of hot water use) and transfer that heat to the surrounding air. This is done in the same way as the radiator in your car. It is done automatically via the electronic controller sensing that the water is too hot and then an electrical signal is transmitted to a control valve to open. The fluid is then routed through the heat dissipater and cools the system to an appropriate value. SUNPEAK USA Inc. heat dissipaters can dissipate the entire heat generated by the solar collector of your selected unit. Many other companies don’t sell this important safety feature with their product and may only offer it as an accessory.

14. What is the maintenance of the solar collector?

Under normal circumstances no maintenance of the system is required. Every few years you should change the heat transfer fluid water mixture. Due to the circular shape of the tubes, regular rainfall should keep the tubes clean. Should a vacuum tube become damaged in a storm after being hit by a large branch or loose its vacuum (note the silver tip on the bottom of the tube turns white), efficiency will be slightly reduced, but the collector can still operate with several broken tubes.

15. Can solar collectors be used for a large scale hot water production?

Yes. Solar collectors can be connected in series or parallel to provide large scale hot water production for a commercial sized project such as a school, hotel or office building. There is no limit to the size of the system, however collectors must be installed in banks of no more than 90 tubes (in series), otherwise the fluid may boil.

16. Can I heat my swimming pool or spa using a solar collector?

Our collectors are high temperature collectors, and are ideal for spas, as the volume of water is small and temperature requirements high. For swimming pools, collectors may be an extremely viable supplement to gas /oil or electricity.

17. Which collector is the best value for money?

This is answered by a combination of the cost per kWh and the cost of the unit. You will find that our prices allow you to make the best purchase decision for your money. SUNPEAK USA Inc. has the lowest prices in the United States. We will match the advertised price of any competitor on the same solar package unit plus give you $50.00 usd. ***restrictions apply

20. How do I calculate what size collector I require?

# of persons
# of tubes
Hot Water Storage Tank

1-2 people = 20 tubes/65 US Gallons

3-4 people = 30 tubes/80 US Gallons

HOME   |   PRODUCT CATALOG   |   PHOTO GALLERY   |   PAYBACK   |   FAQ's   |   DEALERS   |   CONTACT US    |   TERMS   |   SITEMAP
© Copyright 2011   BuySolarSystems.com    All rights reserved

Anthony Scozzafava - BuySolarSystems.com - - 42 White Bride Road - Middletown, New York 10940 - United States,  1-845-629-1317 - http://www.buysolarsystems.com