Efficient Pool Heat Exchangers for Year-Round Comfort

A high-quality swimming pool heat exchanger transfers heat from your existing system, such as a wood boiler, solar system, or heat pump, directly to your pool or spa water. These units keep your water warm longer and reduce fuel use, helping extend swim time into spring and fall.

Using a heat exchanger for pool heating means faster warm-up times, stable temperatures, and low maintenance. For spa owners, a reliable spa heat exchanger offers the same benefits on a smaller scale, just what you need for relaxing weekends or winter soaking.

Check out our full Heat Exchangers Collection for more options built for pool and hydronic setups.

Benefits of Using a Pool Heat Exchanger

• Fast and Efficient Heat Transfer – Keeps large volumes of water at target temperature with less fuel
• Corrosion-Resistant Materials – Built from titanium or stainless steel to withstand saltwater and chlorine
• Works With All Pool Types – Saltwater, chlorinated, and freshwater compatible
• Compatible With Many Heat Sources – Works well with wood boilers, solar panels, and heat pumps
• Low Operating Costs – Once installed, ongoing fuel and maintenance costs stay minimal

Want a deeper look at how it all connects? Watch our How to Heat a Pool with a Wood Boiler – Part 1

Types of Pool Heat Exchangers We Offer

Titanium & Cupro-Nickel Pool Heat Exchangers

These Cupro-Nickel and titanium pool heat exchangers are the go-to choice for saltwater pools. Both Cupro-Nickel and Titanium resists corrosion from salt and harsh chemicals while delivering excellent heat transfer.

Stainless Steel Heat Exchangers

Perfect for freshwater and standard chlorinated pools. These are durable, affordable, and easy to install.

High-Capacity Units

Built for larger pools, spas, or commercial applications. High BTU output and reliable construction for continuous use.

Shell and Tube Designs

Popular for high-volume setups, these units are designed for efficient flow and fast temperature adjustment.

Need help choosing the right type? Check out our guide on Which Tube & Shell Heat Exchanger is Right For Your Pool.

Pool Heating Applications

A heat exchanger for swimming pool setups can be used in more than just backyard pools. These are also great for:

• Residential and commercial spas and hot tubs
• Sea water heating systems
• Heat recovery from industrial or mechanical systems
• Aquaculture tanks and fish farming
• Aquaponic systems that require stable water temps

Why Choose ALT Heat Supply for Pool Heat Exchangers?

At Alternative Heating & Supplies, we work with customers who understand the value of high-quality parts and reliable service. Whether you’re heating a saltwater spa or setting up a hot tub heat exchanger for the first time, we carry the components that make the job easier.

Here’s why customers stick with us:

• Reliable heat exchangers built from trusted materials
• Help from folks who’ve worked with these systems
• Fast shipping across the U.S.
• Product specs and install help that make sense

FAQ

What size pool heat exchanger do I need?

That depends on your pool size, heating source, and desired temperature rise. Reach out with your specs, we’ll help size it properly.

Can I use a heat exchanger with a saltwater pool?

Yes. Use a titanium pool heat exchanger for saltwater compatibility and long-term durability.

How do I install a swimming pool heat exchanger?

Install it between your heating system and pool plumbing, usually after the pump and filter. Our Part 2 Install Video gives a complete walkthrough.

What is the best material for pool heat exchangers?

Titanium is best for saltwater. Stainless steel is great for chlorinated and freshwater setups.

Have questions or not sure which pool heat exchanger fits your setup? We’re here to help. Contact us today, and we’ll ensure you get the right model for your pool, system, and budget.