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Jun 30, 2025

How to store a 150L solar water heater during the off - season?

Storing a 150L solar water heater during the off-season is a crucial task that ensures the longevity and optimal performance of the unit. As a supplier of 150L solar water heaters, I understand the importance of proper storage. In this blog, I will share some valuable insights and practical tips on how to store your 150L solar water heater effectively during the off-season.

Understanding the Off - season Requirements

The off - season for solar water heaters typically occurs during the colder months when sunlight is limited, and the demand for hot water from solar sources decreases. During this time, improper storage can lead to issues such as freezing, corrosion, and damage to internal components. Therefore, it is essential to take the necessary steps to protect your investment.

Pre - storage Preparations

Drain the Water

The first and most critical step is to drain all the water from the solar water heater. Water expands when it freezes, which can cause significant damage to the tank and pipes. To drain the water, start by turning off the power supply to the heater and closing the water inlet and outlet valves. Then, locate the drain valve at the bottom of the tank and open it. Allow all the water to drain completely. You may need to use a hose to direct the water to a suitable drainage area.

Clean the System

Once the water is drained, it is time to clean the solar water heater. Use a soft cloth and a mild detergent to clean the exterior of the tank and the solar collectors. For the solar collectors, make sure to remove any dirt, debris, or leaves that may have accumulated on the surface. This will not only keep the system looking good but also prevent any potential blockages or damage.

Portable Solar Water Heaterpressurized-solar-water-heater

Inspect for Damage

Before storing the solar water heater, conduct a thorough inspection for any signs of damage. Check the tank for cracks, the pipes for leaks, and the solar collectors for any visible wear and tear. If you notice any issues, it is advisable to repair them before storage to avoid further complications.

Storage Location

Choose a Dry and Protected Area

Select a storage location that is dry, protected from the elements, and well - ventilated. A garage, basement, or a storage shed can be ideal options. Avoid storing the solar water heater in an area that is prone to flooding or excessive moisture, as this can lead to rust and corrosion.

Elevate the Unit

To prevent any damage from standing water or pests, elevate the solar water heater off the ground. You can use wooden pallets or blocks to raise the unit. This will also make it easier to move the heater when it is time to reinstall it.

Protecting the Components

Cover the Unit

Use a high - quality cover to protect the solar water heater from dust, dirt, and scratches. A custom - made cover is ideal as it will fit the unit perfectly. Make sure the cover is made of a durable and waterproof material.

Secure the Pipes and Cables

If possible, remove any loose pipes and cables and store them separately. If you need to leave them attached, secure them properly to prevent them from getting damaged or tangled during storage.

Reinstalling the Solar Water Heater

When the off - season is over and it is time to reinstall the solar water heater, follow these steps:

  1. Inspect the unit again to ensure that there was no damage during storage.
  2. Reconnect all the pipes and cables according to the manufacturer's instructions.
  3. Fill the tank with water slowly, and check for any leaks.
  4. Turn on the power supply and test the system to make sure it is working properly.

Related Products

If you are interested in exploring other types of solar water heaters, you can check out our Portable Solar Water Heater, Solar Hot Water Collector, and Unpressurized Solar Water Heater. These products offer different features and benefits to meet your specific needs.

Conclusion

Properly storing a 150L solar water heater during the off - season is essential for its long - term performance and durability. By following the steps outlined in this blog, you can ensure that your solar water heater remains in excellent condition and provides you with reliable hot water for years to come.

If you have any questions about storing your solar water heater or are interested in purchasing a 150L solar water heater, please feel free to contact us for more information and to start a procurement discussion.

References

  • Solar Water Heater Installation and Maintenance Manuals
  • Industry best practices for solar water heater storage
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