How to Keep Mice Out of Your Pool Heater

It rarely happens that a family of mice settles in the pool heater and causes severe damage.

But why do the mice come to the pool heater, and how to get rid of them?

In this article, I will tell you how to protect the pool heater from mice and other rodents and what to do if the pool heater has already been damaged.

Why do mice and other rodents come into your pool heater?

The pool heater is a warm and cozy place for mice, rats, and other rodents. Therefore, they find such a heater in the yard a perfect place to stay and raise the offspring.

And when there is leftover food near the pool, it is like a 5-star hotel for mice.

Furthermore, the housing from the pool heater provides good protection from birds of prey and other predators.

And the mice can easily find a way into the pool heater.

Mice are not dangerous for humans, but besides the excrements that can cause bad odors and bacterial infections, mice can cause damage to the pool equipment.

Therefore, keeping the mice away from the pool heater is important.

What damage can rodents do to the pool equipment?

The pool heater does serve as a home for mice and other rodents.

The damage done by mice can be divided into two categories – physical and chemical.

The teeth of rodents are very strong, and a common problem with rodents is that they like to nibble on cables and other soft parts. They are literally pests that lead to expensive repair costs.

Another problem arises when the mouse enters the pool heater. Its body is exposed to a high temperature of at least 50 degrees Celsius, eventually killing it.

This spreads a decaying smell near the pool, and in the worst case, you will find maggots in the pool after a few days.

The chemicals that the decaying mouse releases into your pool, like urea (pee), cause damage to the pool heater and loss of performance.

How to keep mice and other rodents out of the pool heater?

How can you protect the pool heater against mice?

As mentioned above, mice are very annoying pests that nibble on cables and other soft parts searching for food. Also, they like to make their nests in those warm places, where they feel safe and can produce offspring.

And because of this reason, the pool heater is usually their favorite place to settle.

What you need:

  • Mothballs to deter rodents.
  • Steel wool to stuff open cracks.
  • Rat or mouse trap snaps to get rid of them.
  • Chicken wire or mesh to cover the sides. 
  • Plywood to cover the pool heater.
  • Fake rubber snakes or an owl.

How to protect your pool heater:

  1. If you want to protect your pool heater from rodents, make sure that there is no food around it (especially near its ventilation).
  2. Try to place some mothballs to deter the pests.
  3. You can also place some traps to eliminate the rodents that are already inside the pool heater.
  4. Then to prevent mice from chewing on cables and damaging your pool heater, you should cover the cracks with steel wool because they can’t chew through steel.
  5. If you want to be absolutely sure that no mice or other pests will ever damage your pool heater, cover it with chicken wire or mesh, so they cannot go inside.
  6. Use the plywood to cover the pool heater.
  7. Place some fake rubber snakes or a stuffed owl to scare them away.

Now you know how to protect your pool heater from getting damaged by mice and other small rodents.

But what should you do if mice or other rodents have already damaged the pool heater?

How to get rid of a nest of mice

If the mice have already done some damage to the pool heater, you have to take immediately action.

  1. First, turn off the power to the pool heater.
  2. Clean up all fibers and any other trash they have left behind.
  3. You should change all of the affected cables. If there are cables with epoxy coating, carefully remove the cable insulation and clean it before sealing it again.

Make sure you let the pool heater dry completely before turning it on again. As a result, you will prevent further damage to your pool heater.

On top of that, if there are any other possible entry points for mice or other rodents, block them as well as possible.

As with all other devices in your house, you should regularly check any possible entry points for rodents.

Try sealing any cracks or crevices around the pool heater.

Do you have further questions about mice or your pool heater?

The best way to contact me is @contactswimfool on Twitter or Pinterest. I am happy to help you.

Have fun swimming!

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Hi. I'm Max Berg. I've been in the pool industry since 2015 and have always felt drawn to water. I'm the author behind, where I share my years of experience in pool maintenance and give helpful tips on keeping a swimming pool or hot tub clean. My tips reduce the costs of water treatment and protect the environment.

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