Choosing from Open Loop and Closed Loop Solar Pool Heating Systems

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Choosing from Open Loop and Closed Loop Solar
Pool Heating Systems
When it comes to investing in solar pool heaters,
you need to choose between an open loop and a
closed loop system. Both systems work efficiently
to get the job done and are specific to the
individual requirements of both commercial and
residential pool owners.
The solar-powered systems will save you money
through electricity bills and help you reduce
your carbon footprint. With the advancement in
technology, people are looking for new efficient
ways to use the natural resources available to
them. Hence, you should switch to a solar pool
heating system to turn heat energy from the sun
to heat your pool at the desired temperature for
you and your family.
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Understanding the Differences Between Both
Systems
Open Loop Solar Pool Heating System
An open-loop solar pool heater helps in heating
water directly from the pool when you add it to
the existing loop system. During the operation,
the water circulates through the solar collectors
in the existing filter and heating loop. When the
energy is required for heating the pool, the
water will flow inside the filter and existing
heating heater and then top up which is needed
for heating water to the desired temperature.
If the solar system is providing the
much-required temperature, you wont require a
secondary backup heater. When your pool is at the
needed temperature, the system bypasses the solar
loop to prevention against overheating.
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• Advantages
• Lower installation costs
• Disadvantages
• Less accuracy and reliability
• More energy consumption by pool heating pump
• Unable to work in cloud or cold weather
• Damaged by harmful chemicals or saltwater
• Frequent leakage and damaged roof

Closed Loop System
A closed-loop pool heating system is a
pressurized system that separates from the pool
loop. Rather than using water, the fluid present
in the solar collectors is an eco-friendly
antifreeze solution that contains water,
propylene, and glycol. The solution circulates
throughout the collectors and transfers the heat
energy to the pool water through a titanium or
stainless steel heat exchanger.
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The pool circuits are connected in parallel
through the heat exchanger where the solar energy
is transferred to the pool water through the
solar collector. The existing heating system
supplies any additional energy required before
going back to the pool. To prevent the system
from overheating, the circulation pump turns off
by putting the system into a stagnation state.
The fluid present in the collectors changes its
state to steam which is then absorbed by the
expansion tank in the loop. This type of system
works efficiently in colder climates and
year-round pools as well as indoor solar pool
heating installations.
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• Advantages
• More reliability and accuracy
• Smaller circulation pump and usage of less energy
• Useful year-round for indoor and outdoor
  operation
• Easy integration into multiple systems including
  in-floor radiant DHW
• Longer life expectancy
• No interaction with pool chemicals
• Disadvantage
• Higher initial cost

When deciding which solar pool heating system
works for you, it comes down to the factors that
depend on what is best for your setup. If you
have to pick up the system which is the most
reliable and uses advanced solar technology, the
closed-loop system must be the choice. Shop for
the closed loop solar pool heaters from Northern
Lights Solar Tubs and consider heating your pool
by using the highly advanced and efficient
technology ensuring maximum profits and optimal
return on your investment. For more details, feel
free to get in touch with us at 1-800-759-8990.
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Northern Lights Solar Solutions 1-800-317-9054 305
McKay Unit 20 Winnipeg Manitoba R2G0N5 Website
www.solartubs.com
Thank You