In most households that means that almost half of your electric bill or up to 45% of your oil or gas
bill goes to heat your domestic hot water. A solar domestic hot water heating system can reduce your
costs for heating that hot water by up to 70%.
Most systems require only two roof-mounted solar collector panels and a 60 gallon storage tank located near your present water heating equipment, usually in the basement of your home.
Your present water heating system is retained as a backup in the event of sustained cloudy weather. The solar energy system is maintenance free, fully automatic and noiseless. The only time you know it's there is when you get your reduced fuel or utility bill each month.
Heating water directly from the sun is one of the oldest and easiest ways you can use solar energy. The same principles that heat the water in a garden hose can be used to fill a tank with scalding hot water, ready for laundry, hot showers, washing dishes and other needs, as well as for supplementary space heading and pool and hot tub heating.
This domestic hot water system significantly reduces the number of system components required,
thereby dramatically improving the level of reliability and assuring a relatively maintenance free
lifetime of operation.
In addition, it provides a dual level of temperature protection, eliminating both the possibility of freezing and over- heating.
The components of this solar system have been sized, pre-packaged and factory tested to assure the maximum amount of solar energy possible for domestic needs.
Whenever there is useful energy available from the sun, the automatic controller energizes the system pump. Water is pumped up through the hot collectors from the drain back reservoir and returned by gravity, gradually increasing the temperature of this reservoir. A demand type heat exchanger is immersed in the drain back reservoir through which cold water is passed when hot water off in the residence. As this cold water passes through the heat exchanger it picks up heat and supplies this to the existing hot water tank and thereby reducing the amount of energy used for regular hot water needs. When the collectors can no longer transfer useful energy to the solar reservoir, the system control de-energizes the pump and the water flowing through the solar collectors drains back to the reservoir, eliminating system freeze ups during the cold weather.
This system utilizes a GL-3 Independent Energy Controller and TACO 009 bronze pump. This pump enables the collectors to be be positioned up to 36 feet above the storage tank. The collectors are 3' x 7' or 3' x 8' in size and consist of an insulated aluminum box, a black copper absorber plate and glazed low-iron tempered glass. The storage reservoir is a 66 gallon polyethylene tank with one copper heat exhanger or more depending upon the application.
Through the addition of extra collectors and another heat exchanger, this system can be used to do some supplementary space heating (either hydronic or forced air) and/or pool or hot tub heating.
The ability of the system to be expanded to meet different heating requirements and applications makes it the most versatile solar hot water system on the market.
In areas where there is no electricity we can supply a thermosiphon system. This system uses no
moving parts and instead uses the natural ability of heat to rise in order to transfer the heated
water in the collector to the storage tank. For this reason the storage tank is located above the
|Electric ($0.12 KWHR)||$400||$450||$500||$550|
|Natural Gas ($0.42 cubic metres)||
Our Caribbean model consists of a thermosiphon system with no pump or controller because it requires no electricity to operate. It uses a natural heat siphon to move the heated water from the solar collectors to the storage tank located above the collector on the roof. This is possible because the system does not have to contend with freezing temperatures any time during the year. This system can be installed to be used seasonally in Canada and must be drained for the winter. Due to the high altitude and incidence of the sun in the Caribbean our standard system consists of 1 square foot of collector area for every two gallons of storage.
The Caribbean model water heater
Our second model, the Californian, consists of a pressurized storage tank, pump, controller, snap switch and a collector area sufficient for 1 square foot of collector area for each gallon of storage. You can use your existing electric tank for storage or for additional hot water we can supply an extra tank. This model is suitable for a climate where there is a low probability of freezing conditions or it can be used seasonally in Canada and drained for the winter.
The Canadian model water heater
The third model, the Canadian, is for climates where freezing conditions occur during a part of the year. Such conditions are experienced in the Northern United States and Canada. This drain back system consists of a non-pressurized 60 gallon storage tank, pump, controller, heat exchanger and solar collector panels sufficient for either 1 square foot for 1 gallon of storage or 2 square feet or collector for 1 gallon storage.
|1 reconditioned glazed solar collector:||$799.00|
|1 new glazed solar collector:||$1199.00|
|2 reconditioned glazed solar collectors:||$1398.00|
|2 new glazed solar collectors:||$2198.00|
add $400.00 for pump controller and snap switch.
add $400.00 for additional tank.
Find your family size below to determine an approximate cost for the installation of a solar domestic hot water heating system which will reduce your energy consumption for hot water by up to 70%.
|FAMILY SIZE||ONE STORY HOME||TWO STORY HOME|
2 to 4 members
60 gallon tank
two 4' x 6.5' solar panels
60 gallon tank
three 4' x 6.5' solar panels
60 gallon tank
four 4' x 6.5' solar panels
60 gallon tank
five 4' x 6.5' solar panels