Cost-effective Solar Hot Water Heaters – Let the Sun power your Water Heater!

Cost-effective Solar Hot Water Heaters - Let the Sun power your Water Heater!

BEST SOLAR WATER HEATER OF 2019

In today’s time, when pollution engulfs half of the world in each and every form, all we need some sustainable ways to pursue our lives. We utilize a lot of electricity per day just to go on with our daily life, and that eventually turns out to be one of the highest sources of air pollution in recent times. It pollutes our air, alters the weather and taking us to a time when simple breathing will be a difficult task to do. To change the situation and make the world a place to love again are what should we aim for our next generation. 

It has been seen that the simple task of heating water for daily household works like in the kitchen or for bathing purpose can consume around 30 to 40% of the total energy used in a year, in the form of either electricity or natural gas. We can at least try to reduce this amount of energy expenditure by installing solar water heaters on the rooftop.

A Solar Water Heater is a device which captures sunlight and heats the water in the pipes which are mainly used for bathing, shower. This is considered to be one of the most efficient ways of generating hot water without polluting or exploiting resources. It is treated as an environment-friendly solution.

Best Solar Water Heater System Reviews

How does it work? The solar water heater system absorbs light by means of a collector placed on the roof and converts it into heat. It passes this heat to a water tank by means of a circulating pump. This exchange is triggered by the thermal regulator, but only when the collector is hotter than the water in the tank.

The efficiency of the collectors is at its highest at midday in summer, when the sky is cloudless, and when the collectors face south. However, the collectors also work well in other seasons, when the sky is cloudy, for a good part of the day, even if they face east or west. When there is insufficient sunlight, the water is preheated and a back-up system takes over to bring the water to the required temperature. This system can, therefore, be used to produce hot water at a constant temperature throughout the year without emitting any CO2.

REVIEW OF Top 8 Solar Water Heaters

Below is the list of Top 8 Solar Water Heaters. As Solar Heaters are helpful and more popular among people, many brands introduced these Solar hot water heaters. So, it will be difficult for you to sort out the best Solar Water Heater System among all. From all those, we have listed the best ten based on their features, specifications, quality, etc. Check the description of each one and choose the best one.

Game 4721 Solar pro curve solar pool heater for intex

  • Durable
  • Adjustable Legs
  • Easy to assemble

Solar Powered Pool Heater Panel Replacement

Solar Pool Supply 2inches Header Manifold Highest Performing Design Heater Panel Replacement image
  • Energy Efficient
  • Quality Assurance
  • Durable

AO Smith Sun – 80 residential solar water heater

AO Smith SUN-80 Residential Solar Water Heater image
  • CSA certified
  • Long lasting
  • Low Watt Density Design

Solar pro pool heaters by GAME are extremely innovative and provide unbeatable performance. The solar pool heater is ideal for ground pools. The unique curve feature helps to maximise the heat output i.e. 5 degrees Fahrenheit in 4 days.

  • Solar Pool Heater

  • Durable

  • Adjustable Legs

  • Easy to assemble

The construction of solar pool heater is durable with commercial grade collectors. It comes with threaded pots for versatile plumbing option. The solar pool heater includes 2 hoses and stainless steel hose clamps.

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Pros

  • The solar pool heaters come with adapters for intex pools
  • The heaters do not require any electricity or gas connections
  • The solar pool heater has adjustable legs to fold to expose maximum to the sun

Cons

  • The solar pool heater is bulky
  • The solar pool heater leaks from hose

The solar-powered pool heater panel replacement is built up of superior quality which lasts for long. The life expectancy is of 15- 20years. The maintenance cost of the panels is extremely low since they are built very well.

  • Energy Efficient

  • Quality Assurance

  • Durable

  • Universal Fit

The product performance is so well that the company offers full 5-year replacement of panel warranty and 10 years limited warranty.

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Pros

  • The panels of the solar powered pool heater perform so well that they are rated highest by the Florida solar energy center
  • The panels are completely interchangeable, works as a direct panel replacement for Aquatherm and FAFCO systems

Cons

  • The system is very expensive as compared to others

AO Smith sun 80 solar water heaters are designed for installation as a part of direct solar water heating system or for use with external heat exchangers in closed loop systems. They have storage which helps to store the water along with maintaining the temperature of water when solar energy is not present.

  • PermaGlas Glass Tank Coating

  • Long lasting

  • Low Watt Density Design

The solar water heater has multiple connections which makes installation part flexible. The tank of the solar water heater is made up of patented glass which protects against corrosion to maximise tank life. The solar water heater is suitable for residential areas. 

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Pros

  • The solar water heater has 6 year warranty for tank and its parts
  • The solar water heater is CSA certified and ASME rated

Cons

  • The solar water heater is too bulky and occupies a lot of space

The EZ solar water heaters are designed for multi panel hybrid solar water heater installation. The solar water heater does not require any soldering or tubing for installation.

  • Lightweight

  • Easy to install

  • Tough and Durable

The solar water heater panels can be expanded only by adding extra panels. Installation is simple, the panels need to be just joint or thread together. 

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Pros

  • The solar water heater is tough and durable
  • The solar water heater is lightweight and manageable

Cons

  • The solar water heater is not accredited by SRCC therefore is not eligible for tax exemptions

The solar water heating panel is considered appropriate for small to medium size residential areas, RVs, cabin, mobile homes etc. This solar water heater panel is easy to install.

  • Compact

  • Tough and Durable

  • Easy to carry

  • Easy installation

The solar panel is lightweight and weighs less than 14 pounds. The panel is of manageable size of 2ft by 2ft hence making it easy to carry and transport. The solar panel is tough and durable.

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Pros

  • The panel is comparatively low on price making it affordable. The cost is less per square foot than other panels
  • Tough and durable as compared to other panels

Cons

  • The flow rate is less than it seems

Duda solar water heater is one of the most efficient water heaters. The evacuated tubes retain more energy than the flat panels thus making them more efficient.

  • Hailstone Resistance

  • Sun Absorption Efficiency

  • Easy to install

  • Winter Resistant

 The solar water heater has capacity of 93-95% of sun absorption. The 45 degree tube setting enables it to absorb more sunlight when the sun is at a peculiar angle in the east or west. 

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Pros

  • The solar water heater is certified by SRCC hence exemptions on tax can be availed
  • The solar water heater is easy to install
  • Amazon has rated as 5 star and highest recommended

Cons

  • The supply of the solar water heater is less as compared to the demand

The 30 tube Duda solar tubes are one of the trusted and most popular brands of solar panels in the USA. Moreover, Duda is also known for its highly efficient yet customer friendly product since last few decades. An SRCC accredited company, the Federal government also gives credits and discounts on taxes, if someone installs this solar thermal water heater in their homes. And that is definitely another level of advantages, these solar panels provide.

  • Thirty copper heater pipes with 14mm diameter, connected in 45 degree slanting to capture sunlight

  • 45 mm rockwool is used for maximum heat retention

  • Sunrays absorption efficiency is around 93%-96%

  • Hailstone resistance capacity is up to 1”

  • Maximum operating pressure: 87psi

  • Maximum flow rate: 5.25 gpm

The product in question in this article in a water heating system altogether, rather it is just the collector panels. Here 30; 14mm solar tubs are connected to each other in a 45-degree angle. It is a proven fact that these tubes can absorb maximum amount of sunlight in 45-degree slanting position. But with accordance to where it is going to be mounted, the slope can adjust to 37-degree slopes as well. The primary function of the solar collector is to transfer the heat energy from the sun to the regular water tank with the help of circulating pumps. The tubes are winter resistance and if working on about 70% of its total efficiency, these can also last for around 15 years.

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Pros

  • Energy efficient
  • Sturdy and durable
  • Applied for 30% federal tax refund after purchase

Cons

  • A bit expensive in terms of price, though it is a one-time investment

The Sunchaser Solar Hot Water Heater is designed for closed loops, areas where freezing conditions are extreme. The solar hot water heater system is durable enough for the long run because of the material used.

  • Manifold Pipe Material

  • Glass Cloche Bell

  • Cost Effective

The water heater comes with a 5-year warranty, 2 or more collectors can be connected to each other to create collectors of 32 tubes or more for more heating capacity.

OVERALL RATING

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Pros

  • Dimensions of evacuated tubes: 58mm(OD) x 1800 mm (Length), about 2.3″ x 72″. Dimensions of collector: 63″ (W) x 79″ (H). The weight of collector: 180lbs
  • Manifold Pipe Material: Copper Heat Pipe Material: Copper Manifold Pipe size: 1″ threaded (male) Tube Material: Borosilicate Glass
  • Coating of Glass Absorber: AL-N-AL, Fin: Aluminium Fin Insulation Material: Rock Wool Frame Material: 6063 Aluminium Alloy
  • Manifold Casing Material: 6063 Aluminium Alloy Max Operation Pressure (Bar): 6

Cons

  • Bulky
  • Suitable only for extreme freezing conditions

A solar water heater is basically a panel, mainly installed in roof or in places which get ample amounts of sunlight’s every day, which absorbs sunlight in the day time then utilizes the energy to heat water. Solar water heaters are furthermost the most economical way in terms of both money wise and energy expenditure wise. Moreover, another important feature of these solar water heaters is these does not emit a single drop of Co2, thus reduced pollution to a substantial level also, if used in large amount.

It has been seen that sunlight falling in a 1 meter^2 panel in northern latitudes is equivalent to heating 100 litres of oil or burning of 1000KW of natural gas every year. So, the utility of a solar water heater is literally uncountable these days. Though a back up heating measure is always necessary, for the days when sunlight is not sufficient. 

Solar water heaters used the pretty basic mechanism to do their job. The mechanism goes as follows:

  • Sunlight is get absorbed in the light collector panels place on either roofs or any other places which gets maximum amount of sunlight for maximum time of a day. The collector panels also convert the sunlight to heat energy as well.
  • The converted heat then reaches the connected water tank through a circulating pump. This entire energy exchanging process get started by thermal regulators present in the panel and in the tank as well. The most efficient exchange takes place then the panels temperature was higher than that of the water tank to prevent overheating of water. This phenomenon also saves some electricity by not operating the circulating pumps unnecessary. 

There are basically only two major components, which are an integral part of any solar water heater irrespective of the type. On the presence of circulating pumps and collectors on a solar water heater setup, these can be divided into two different types:

  • Active solar water heaters, which comprises of circulating pumps 
  • Passive solar water heaters, which doesn’t have any circulating pumps.

Furthermore these two types are again divided into many subdivisions, which basically help us to understand the solar water heaters more precisely.

As we have mentioned earlier that these types of water heater systems use circulating pumps to exchange water between the heat collector and the water tank. Based on their mechanism, these are further divided into two major classifications:

  • Direct circulation system: in this type of water heating systems, the circulating pumps circulate household water between the heat collectors and then in to the home. These types of solar thermal water heaters are suitable for climates, where freezing temperatures are very rare like in the tropical areas.
  • Indirect circulation system: these types of solar thermal water heater technologies are perfect for areas, where the temperatures are prone to reach the freezing point very often. In this type, the circulating pump exchanges heat-transfer fluid in between the collectors and heat exchangers. This particular exchange mechanism in turn heats the water in the tanks and thus then transferred in to the household.
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Though these types of solar water heater systems are way cheaper than the active ones, but they are not that efficient as well. But definitely these passive water heater systems last way longer than any other water heater systems by far. Passive system is also divided in two basic types as well. These are:

  • Integral collector storage passive system: this particular type of solar water heater system can be a perfect choice of mostly tropical climates, where the houses can get broad daylight for a significant amount of days in a year and where even the evenings are also hotter. In freezing temperatures, this particular heater system will not work properly.
  • Thermosyphon system: this particular types of thermosyphon system is actually based on the concept of osmosis, where flowing of hot water takes place in the household, when the level of warmer water is higher than that of the cooler water in tanks. In this type, the collector must be placed below the regular water tank for an easy flowing of warm water. The design and the structural integrity of the roof has been kept in mind before installing this Thermosyphon system, as the water storage tank here is bit heavier. 
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Going for a solar thermal water heater system, requires some levels of intricate research to find out how they work and what types of heater can be suitable according to your lifestyle. Other factors like budget, climate conditions of the area you live in and also the points like impacts on environments has to be considered as well. Here, we have discussed some of the basic considerations which can help you to narrow down the entire selection process:

  • The number of people present in a family and their lifestyle is one of the key factors based on which the type of the water heart can be decided. If there are four to five or more family members in the family and they require a lot of hot water to complete their daily sanitary works, then an active solar water heater system with larger collector is required. On the other hand, for a family of one of two people, passive water heaters will function properly. 
  • In terms of climates, in comparatively sunny and warmer areas, a small size of solar water heater system can produce a lot of hot water in a relatively lesser time. On a contrary, you are going to need an active solar eater heating system with larger collectors to warm up waters in colder regions, where the temperature often touches the freezing zone.
  • In terms of budget, passive water heater systems are way more affordable than active water heaters. On general solar water heater systems are definitely cheaper than photovoltaic arrays and it’s only requires a one-time investment of few hundred dollars to set up an entire system.

Solar water heaters are considered to be a green solution in today’s modern time. The solar water heaters contribute a lot to savings in terms of the environment, monetary. Small steps indeed contribute to a bigger investment; solar water heater is a true example of the phrase. Know more latest updates Water Heaters by visiting this portal regularly.

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