Solar energy is one of the cleanest energy in the world. If you use more solar energy, we do more to protect our environment by reducing carbon emissions. When it comes to solar water heaters, they are not suitable for everyone, unless the area you live in has extremely sunny weather around a whole year. Since they are installed in the sun, they must be weather-proof. Some features are very important for the solar water heater.
- All the metals should be galvanized. The metals used should expand and contract well.
- The rubber seals also need to be durable, withstanding high temperature up to 320 degrees.
- Copper pipes should be built to minimize joints, or it is prone to cracking and leaking.
- The water tank should be designed to last. It is best to have some type of insulation.
- There should be a way to stir the water in the tank in order to produce even heat.
- There should be an exit valve that allows the owner to clean and rinse it on a regular basis.
If you are looking for the best solar water heater, you don’t need to pay attentions so much information above, because we’ve done some research and found out the best solar water heaters on the market according to essential features listed above. We also check their ratings, prices and customer reviews.
Stiebel Eltron SBB 300Plus Dual Heat Exchanger Solar Storage Tank
This is not only a pure solar heater. Its solar panels can heat it, and it also can use electric energy to heat water. This design is useful. If the weather is bad, electricity is really a good backup energy used to heat water. Its storage tank is designed to last. It also provides a 1-year warranty on labor and parts, but you also can buy a 12-year warranty separately if you want more warranty.
30 Tube Duda Solar Water Heater Collector 37° Frame Evacuated Vacuum Tubes SRCC Certified Hot
This heater is one of the most efficient solar collectors. Heat can be retained by its evacuated tubes better than flat panel collectors, so it works more efficient even in cold winters. It also has its unique capability of absorb more heat when the sun is at an angle in the west or east. It is SRCC certified. Once you have it, you are qualifide for the 30% Federal Tax Rebate.
AO Smith SUN-80 Residential Solar Water Heater
This heater support top and side connections for open loop systems and closed loop systems that use an external heat exchanger. To reduce lime, it also comes with dynaclean diffuser dip tube. Designed to last, its patented Permagalss lining can prevent from rusting and corrosion, maximizing tank life.
Rheem Sol Pak Solaraide
The collectors of the Rheem Sol Pak Solaraide come in a few sizes that allow you to choose according to where you would like to place them. This can make them fit well. The most common size is 4×8 foot square. Their flat panel design is great for more heat absorption. It is also OG-100 certified by SRCC.
Sunward Solar Hot Water System
This system is pre-plumbed, so you can hook it up to any existing hot water system in the house. The whole process is relatively easy, which means no more plumber work is needed to do. Its connection hoses can be quickly connected, making the installation much easier without expensive soldering. Both temperature gauges and a mixing valve are included in the plumbing, so you don’t need to worry about overheating and an uneven temperature. All miscellaneous hardware that is used to connect your two systems is included.
SunMaxx 80 Gallon Empire State DHW Kit FP
This system has a 50-gallon tank which you can locate inside. If you need larger capacities, you can buy an external heat exchanger. The pumping system is designed to make water transfer efficiently and quickly, so that heat can be retained as much as possible. If you plan to buy it, contact SunMax first to start a conversation about how much water you will consume and what you want from your custom made solar heater.