Households consume a lot of energy to heat water. Studies indicate that over 15% of the total energy that households consume goes towards heating water. In turn, they add to the monthly expenses. Also, these costs cannot be avoided for hot water is essential in homes.
Now, if you’re looking for energy-saving measures when it comes to getting your quota of heated water, then you may want to consider the option of solar water heaters.
You can avail a wide variety of solar water heaters; they come in varied designs.
Solar water heaters do not depend on fossil fuels. Instead, they require exposure to the sun’s rays to keep them charged. In the process, they convert the saved energy into usable energy for meeting your energy requirements.
Also, you do not have to pay for using the sun’s energy, which helps you to save on expenses on electricity bills. As such, you can avail heated water free of cost and take advantage of the related benefits.
Solar Water Heaters Reviewed
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Unlike flat solar panel collectors that can’t produce and retain much heat in a colder climate, Duda Solar 30 Tube Water Heater is designed specifically for cold and overcast conditions, and therefore, you can expect superior performance from this solar water heater even when the temperature outside is near freezing. The tubes can retain and absorb low-angle sunlight quite efficiently. You will get a 30% discount on this solar water heater and this solar water heater is also SRCC Certified.
Duda Solar 30 Tube Water Heater can be placed without any worry as this solar water heater is highly resistant to hailstone and storm. You can get this system up and running in a matter of a few minutes as the installation process is very simple and straightforward. If it gets sunlight throughout the day, it can warm up the water by a massive 50 degrees.
Complete 2 Panel Hybrid Solar Water Heater Kit is designed to last long. It should not take long to get the 2 Panel Solar Water Heater System online as the assembling process has been simplified over the years. All you have to do is to thread the SW-38 Solar Water Heater panels together and the system will start working. Want to make the water hot rather than warm? Well, then add two more panels in the system and the system will provide all the hot water that you will ever need during the winter. With Complete 2 Panel Hybrid Solar Water Heater Kit, you will be able to cut down on your electricity bills during the wintery month.
The panels are lightweight too. Weighs just around 12 lbs, you can get this Complete 2 Panel Hybrid Solar Water Heater connected to the electric or gas water heater to get an uninterrupted supply of hot water.
Solar Collector of Solar Hot Water Heater is another decent solar water heater that can provide hot water throughout the wintery months without any interruption and that too without investing a ton of money. Solar Collector of Solar Hot Water Heater comes standard with 10 Vacuum glass tubes and the outer shell is made from Aluminum Alloy. You will get 10 heat pipes inside the package.
Preppers Peak Solar Water Heater does what it does best and that is heating the water by harnessing the power of the sun. Though different factors are at play, this Preppers Peak Solar Water Heater can heat water in as little as 30 minutes or less. Incredible is not it? Now, if you are living in the far north, you can use this solar water heater to melt the snow to harvest drinking water. Preppers Peak Solar Water Heater is extremely lightweight, weighs just around 1.2kg and you can use the water to make rice, ramen, or whatever you like. Preppers Peak Solar Water Heater can hold 17oz of water which is more than enough. Preppers Peak Solar Water Heater is ideal for those who spend more of the time outdoors. All you have to do is to add water in it and then watch how the sun does the magic.
Sunbank Solar Water Heater allows you to heat water without relying heavily on the existing power grid. Take your first step toward truly energy self-sufficient with this Sunbank Solar Water Heater and that too without shelling out a ton of money. 40-gallon system can easily meet the requirements of 3 people however if you have more people in your family, you can always go for the 80- gallon system. Unlike photovoltaic (PV) panels that can absorb only 15% solar radiation, Evacuated tube solar collectors can absorb a jaw-dropping 95% of solar radiation that strikes them. The heat gets stored in an insulated tank. The best thing about this solar water heater is that it does not have any moving parts and it also does not require any pump to get it to work. You will also get a 10-year Collector Warranty. What’s more, you can expect a solar water heating system?
Best Solar Water Heater Buying Guide
What Type Are You Looking For?
Here are the different types of solar water heaters. Choose from the given alternatives based on your needs.
1. Flat Plate Collectors
These varieties contain an in-built copper tube, which is fitted in a sequential manner of matching cells that connect via two pipes. More so, the flat plate is kept within an insulated container and enclosed by tempered glass.
2. Batch Collectors
The other term for batch collectors is Integrated Collection Storage systems. These resources heat water in tube-like structures that are enclosed within a box. The heated water is stored in the compartments until you draw the water. In such containers, water is storable for prolonged durations, due to which the water becomes very hot. Thus, most solar water heaters come with a tempering value that prevents any scalding incidents when you twist the tap. The valve mixes cold water with the hot water to keep the water temperature at tolerable levels.
However, you must not use batch collectors if you’re living in areas that experience extreme cold climatic conditions.
3. Closed-Loop Variants
The closed-loop solar device system is known to work indirectly and uses a non-freezing liquid to redirect the heat of the sun’s rays to the water through a storage tank. The sun’s thermal energy then warms the fluid within the solar absorbers and the heated fluid continues to flow via the storage tank’s heat exchanger for transmitting the heat to the water. The non-freezing water passes through the same cycle and collects inside.
4. Evacuated Tube Collectors
The evacuated tube collectors are rated the highest in efficiency among the different types of collectors. They come with a metal-based tube, which conserves water and is enclosed in a larger-sized glass tube. The space between both tubes creates a vacuum for retaining the heat emanating from the sun.
Solar water heaters are grouped by their respective circulation system. In the following details, we discuss the different models as per the flow system.
5. Direct Models
This solar water heating system has a circulation system that pumps the water via the absorbers to be directly warmed as a result of the sun’s hot rays. After the water heats up, the warm water is pushed into a tank and is usable.
The location of your house makes for an important consideration when making your selection among the available solar water heaters. If you’re residing in warm regions, then opting for a solar water heater is a judicious choice. Because you can be assured to receive adequate amounts of hot water to meet your household needs.
On the other hand, if you live in regions that experience cold climates, you will need a suitable solar collector. More so, you have to factor in the possibility of your system freezing. To avoid such issues, you have to install a drain back tank system that maintains the water temperature and prevents the pipes from bursting.
Are You Environmentally-Conscious?
If you’re looking to make your contribution to the environment, then you have to adjust your lifestyle habits accordingly. As such, you must not shower for longer than required. Plus, you must wash your clothes only in cold water. You must also adjust the temperature of your existing water heater to acceptable levels.
As part of your efforts to go the environment-friendly way, you should also pick solar water heaters that do not require extra energy for their operation. Go with basic passive systems; they use thermodynamics to energize the circulation pump.
Opting for a solar-engineered circulation pump is one more way of making your contribution to making the world greener.
Gauge Your Water Requirements
The efficacy of your residential solar water heating systems depends on the number of family members and their lifestyle. In cases of large-sized families, the wide water collectors are deemed suitable and a larger holding tank suffices for heating water.
Conversely, if your family size is small, then the passive systems that heat water in batches are advisable.
Take into account your daily water needs and follow by opting for models that serve the given purposes suitably.
What You Need to Know About Solar Water Heater
The solar hot water heaters comprises of the solar thermal collectors, a fluid system for moving the heat from collector to the point of usage, a reservoir or tank for the heat-storage and subsequent use. The solar hot water heaters are used to heat water, under floor heating, swimming pools or as energy input for space cooling, heating, and industrial applications. In comparison to photovoltaic systems, the solar hot water heaters are more than three to four times efficient in producing hot water from the sun.
Investing in the solar hot water heaters is coast friendly solution as it is offers reliable technology that offers long lasting performance on low maintenance cost. With state, federal, and utility incentives obtainable, the solar hot water heaters offer instant pay back in several cases.
Solar hot water heaters work on the principle where the water surpasses solar panels or solar collector that heats the water in undeviating contact with sun and this energy is utilized for heating the water. The water passes on to the insulated tank, which further conserves the heated hot water for the later usage.
There are some discrepancies in the prime principle of solar hot water heaters: passive and active systems. The passive system includes gravity where as in the active system uses a pump for moving the water from the solar panels or collects to the reservoir or the storage tanks.
Types of Solar Water Heaters
There are essentially five types of solar hot water heaters available in the market including:
- Solar Batch heaters
- Open loop direct
- Pressurized glycol
- Closed loop drain back
Components of solar hot water heater
- Solar collectors
- Solar storage tank/ reservoir
- Collector mounting system
- Water pump
- Solar panels
- Heat exchanger
- Expansion tank
- Backup water heater
- Isolate valve
- Tempering valve
The solar hot water heaters not just contribute in saving the future energy efficiency, but also are simple to install and protects the environment around you. With the use of solar water heater, you not only reduce your energy bills but also make sure that you make the best use of renewable resources. So, get the solar water heater and save on electricity bills while making the best use of quality water heating technology. It is an efficient way of reducing power consumption and harnessing natural energy.
Solar equipment helps in preserving the environment by reducing our dependence on fossil fuels. As a consequence, we can reduce our carbon footprint and the release of greenhouse gases. For this reason, solar energy is considered to be a eco-friendly alternative while paving the way for a greener future – not only for us but also for our future generations.Last modified: September 2, 2021