Room Design
Outdoor Spaces
By
Ralph Tarulli
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Ralph Tarulli
Ralph Tarulli is a pools and construction expert with 7+ years' experience working on pools, and 10+ years' experience in commercial construction. He has 15 professional certifications and is pursuing a career in building engineering.
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Updated on 08/15/23
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In This Article
How a DIY Pool Heater Works
Instructions
When to Call a Professional
One very common way pool owners can extender their pool season is adding aheater. Going the traditional route involves permits, gas lines, electric lines, excavation, and re-plumb pool lines. It can quickly become a large expense. A simpler and more affordable way to heat your pool is buy making a DIY pool heater.
Here is a step-by-step guide to how to make a simple solar-powered DIY pool heater.
How Does a DIY Pool Heater Work?
A DIY pool heater uses the heat from the sun to warm water in a hose that then goes into your pool.
These instructions teach you how to make a simple solar pool heater that will be compatible with any kind of pool and won’t interfere with any existing pool machinery that may already be in place.
The success of your solar pool heater depends on the amount of solar exposure in your area. The warmth and efficiency of your DIY pool heater is affected by sun exposure, so placement is extremely important.
Warning
Always be sure to wear and use proper safety materials such asgoggles, gloves, long sleeves and long pants while working with any hand or power tools.
What You'll Need
Equipment / Tools
- Hacksaw
- Knife
- Screwdriver
Materials
- Hose clamp
- 2 Black hose or garden hose
- Submersible pump or cover pump
- Plywood
- Screws
Instructions
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How to Build a DIY Pool Heater
There are many ways to create the area where the sun will hit and heat up the water in the hose. Often this can be done with just supplies lying around your house. Our preferred method, detailed below, uses a sheet of plywood and screws.
Connect the Hose to the Pump
Connect the garden hose (or other black hose) to the pump with a hose clamp and drop the other end of the hose into the pool. Make sure that the hose is connected to the outlet side of the pump.
If it is a submersible pump, you can then drop the pump right in the pool to gather water and leave the end of the hose outside of the pool.
By the end of this step, the pump and hose should be connected with one end of the hose sticking out of the water.
Tip
When you choose a hose for a DIY pool heater, it's better to choose one that is on the longer side. The longer the hose is, the more area your heater will have.
Put Screws Into the Plywood
Next you’ll make the solar surface where the water will warm up in the hose before travelling to the pool. For this you need plywood that is at least 3x3 feet big.
Mark out two rows about 1 to 2 inches from opposing edges of the board. Put screws in those rows about 2 inches apart.
Wrap the Hose
Take the hose coming from the pump and wrap it around each screw, crossing the board after each wrap. It will end up in a zigzag, in a pattern similar to the shoelaces on a sneaker.
Place the Board in the Sun
With the knowledge that the hose on the board will need to be heated, place the board in a very sunny spot. The sun hitting the board will naturally heat up the water in the hose, so that by the time it goes completely through the hose and exit back into the pool, you’ve got warm water waiting for you.
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When to Call a Professional
If you complete this DIY and your pool is still cold or not as warm as you would like, you might need to bite the bullet and get a non-solar pool heater. Call and get a professional opinion on how to meet your goal for pool warmth and what your options are based on your specific pool setup.
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