Difference Between Active And Passive Solar Water Heater

Know The Difference Between Active And Passive Solar Water Heater

A solar water heater is now becoming an essential part of a lot of people’s households. So, if you are a regular user, you should be aware of everything about it. There are different types of domestic solar water heaters. But one way it is differentiated is the way it functions. A solar water heater has two different way of functioning, active and passive.

Positives of Active Solar Water Heater

These use pumps or fans to get water. There are several positive and negative factors of this system. Take a look.

Positive of Active Solar Water Heater
• It is mainly built with flat-plate PV panels. These are advanced designs where all the panels are connected with each other.
• Solar collectors use liquid or air to use it as a conductor. These solar collectors store and conduct energy.
• These conductors are hydronic collectors which use liquid whereas the collectors that use air are known as air collectors.
• These liquid collectors are used more than air collectors. Air collectors have only one drawback which is that it doesn’t freeze.

Negatives of Active Solar Water Heater

Some negative aspects of active solar water heater are:

• These can be expensive.
• Maintaining it can also be a bit of work.
• Fluids storing heat in the solar panels can release toxins in the air in some cases.

Passive Solar Water Heater

These heating systems depend on the design, construction and building of your home. It can operate without any external devices. Using passive collectors, sunlight is converted to solar energy. There are several features of a passive solar water heater.

Positives of Passive Solar Water Heater

• This can be quite cheap as there is no external equipment involved.
• Your energy expenditure will go down by 14% allowing you to save money.
• It doesn’t cause allergies or dry out your mouth, so it’s good for your health too.

Negatives of Passive Solar Water Heater

The efficiency is dependent on the climate and the weather. If you live in a place where it is too hot, it has the potential to overheat. On the other hand, if you live in a place where most days, you don’t get sunlight, then it won’t work well either. So, you will need to keep it where it gets the maximum sunlight but also doesn’t overheat.

So, depending on your requirement, you should choose which type of domestic solar water heater will be best for you.

Author BioHi, I am Anita. I work as an engineer in the Manufacturing Industry. During my free time, I write business-related blogs.