Solar Water Heating Systems For Homes: How Do They Work?

Thinking of adopting green technology in your home? Consider solar water heating systems for homes! This technology enables you to harness the power of the sun and use it to heat your water. Why is it becoming a popular choice amongst homeowners? Apart from its ability to heat water without increasing the carbon footprint, solar water heaters are efficient, guaranteed to reduce your monthly utility bill.

The following is a brief explanation about solar water heating systems for homes and how they operate:

What is a solar water heater?

This is a device that captures sunlight and heats the water in the pipes which can be used for domestic purposes, i.e. bathing, washing, etc.
It has four main components which work together to produce heated water. These are:
1) Thermal Panel or solar collector: This is installed on the roof. It gathers the sun’s rays on its flat surface.
2) Tank: This is where hot water is stored.
3) Circulating Pump: This accessory transports solar energy gathered from the collectors and transfers it to the tank.
4) Thermal Regulator: This device behaves much like a thermostat and regulates the heat of the system.

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How do solar water heating systems for homes work?

The solar collectors on the roof absorb the sun’s light. The panels covert this into heat and pass it onto the water tank via a circulating pump. The thermal regulator triggers this exchange as soon as the temperature of the collector becomes hotter than the water within the tank. This inhibits the circulating pumps from using up too much energy. It also stops overheating.

What is the best way to fit collectors for maximum efficiency?

The collectors are most efficient during the midday in the summer months, pending the sky is cloudless and there is south-facing orientation. Collectors work fairly well in other seasons too, even when they’re facing east or west. For maximum efficiency, a 35 degree gradient towards the horizon is best.

In cases where there is insufficient sunlight, you may have to invest in a back-up system. This will bring the temperature of the water up without emitting carbon dioxide into the atmosphere.

Why opt for a solar water heating system?

With a solar water heater, you have an unlimited supply of sunlight to heat your water. It can provide substantial savings throughout the year. For example, a sun shining on a 1m² roof can replace 100 litres of heating oil and 100 m³ of natural gas. You can use solar energy for up to 70% of your domestic requirements such as running the dishwasher or washing machine, bathing, etc.

An investment in a solar water heating systems for homes will provide a lifetime of savings. To learn more about how this technology works, please contact PS Solar System.

5 Types Of Solar Water Heater in Florida

It is estimated there are currently over one million domestic and 200,000 commercial solar water heaters installed within the United States. Though there are different types of solar water heating systems, their basic technology is quite simple. It begins with sunlight striking and heating an absorber area within the solar collector or storage tank. Solar heaters are typically roof-mounted and can supply 80% of the required hot water for your home. The portable will flow via the tubes attached to the absorber surface. The heat is collected from it. Systems using a different heat-transfer loop have a heat exchanger which will heat up the potable water. This heated water is then stored separately in a preheat or conventional water tank until required. If the water requires additional heating, fossil-fuel energy or electricity can be applied.

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If you’re shopping for a solar water heater Florida, learn the different types that are out there. These include:

#1 Thermosiphon Systems

This system heats an antifreeze fluid called glycol. This fluid will rise via natural convection from the collectors to the storage unit, which is typically placed on a higher level. Pumps are not required in this system. Fluid movement and heat transfer increases as the temperature rises. Thermosiphon systems work best in areas with large amounts of solar radiation.

#2 Direct Circulation Systems

In this system, water is pumped from the storage tank to the collectors during sunny periods. Protection from freezing is obtained by recirculating the hot water from the tank or flushing out the collectors. Since the recirculation system requires increased energy use while the flushing component reduces hours of operation, this type of solar water heater Florida is best used in areas that do not receive freezing temperatures.

#3 Drain-Down Systems

This is an indirect heating system. Untreated/treated water is dispersed via a closed loop. The heat is transmitted across a heat exchanger. If solar heat is not available, the collector fluid drains by gravity to prevent freezing.

#4 Indirect Water-Heating Systems

Freeze-protected fluid is transmitted via a closed loop. Heat is added to the potable water using a heat exchanger. Substances such as water-propylene glycol and water-ethylene glycol are used for freeze protection. This system has an 80-90% efficiency rate.

#5 Air Systems

This is an indirect system of water heating. Collectors will heat up the air and move it to an air-to-water heat exchanger using a fan. This water is then used for domestic purposes. The efficiency of a heat exchanger in air systems lies within the 50% range. Thermosiphon, pump-activated and direct circulation solar water heaters require higher maintenance. A majority of the solar water heaters in the United States are indirect air/water systems.

If you’re considering getting a solar water heater Florida, contact PS Solar System.