Switching from Gas/Electric to Solar Pool Heating

Monthly costs of $500 to $1,000 are typical for a pool heater, and that expense repeats every month the heater runs, year after year, with no end in sight. Switching to solar pool heating changes that. Once a Suntrek system is installed, the sun does the work and your heating bill significantly drops, and it keeps doing it for 20 to 25 years.

How Much Am I Really Spending to Heat My Pool With Gas or Electric?

Switching to solar changes what you pay, how long your equipment lasts, and how often you actually use your pool. The same factors that make gas and electricity more expensive have no effect on a Suntrek solar system.Here’s how the two options compare, side by side.

Either way, the equipment bill and the fuel bill both keep coming. You can see the full breakdown here:  What’s the Best Heating Solution for My Pool?

How the Payback Math Works

A Suntrek solar pool heating system costs $2,500 to $7,000 installed, depending on pool size, roof layout, and system configuration. With a gas heater bill running $500 or more per month through the heating season, a solar system can pay for itself in 2 to 3 years on average.

After that, the heating is essentially free for the remaining 10 to 20 years of the system’s lifespan, aside from routine maintenance, which typically runs a fraction of what you’d spend on gas or electric heating annually. That math only gets better over time as gas prices and electricity rates rise. A Suntrek solar system is completely insulated from both.

What to Expect After the Switch

Owners who switch to Suntrek solar notice the difference right away, not just in their heating bill, but in how they actually use their pool. Here’s what changes:

• More time in the pool. Owners who previously limited heating to weekends or special occasions find themselves swimming midweek, in early spring, and through October without thinking twice about the cost. A properly sized Suntrek system can keep pool temperatures between 78°F and 88°F for 6 to 9 months, and that’s not by accident. Suntrek’s collectors are engineered for maximum performance, delivering seasonal gains of 10 to 15°F above an unheated baseline and daily gains of 2 to 8°F depending on weather and system setup.
• No recurring service calls. No burners, no combustion components, no compressors. The one annual task is draining the collectors before winter to prevent freeze damage, a process that takes just a few minutes.
• Professional winterization available. Suntrek offers a winterization service for owners who want that handled by the same team that installed the system. If you want to know more about winterizing your system, the Winterization for Solar Pool Heating Systems guide covers everything you need.
• No surprise repair bills. Gas heater owners are used to annual inspections and eventual heat exchanger replacements. With solar, that maintenance cycle goes away entirely.

What Switching Actually Involves

The installation process is straightforward and typically completed in one to three days. Suntrek handles everything from the initial consultation through final system commissioning, so there’s nothing for you to manage in between.

Permits and Approvals

Before any work begins, Suntrek handles all required permits and paperwork, including compliance with local building codes and electrical standards. You don’t have to deal with any of it.

Collector Placement and Plumbing

With permits in place, Suntrek’s technicians mount the collectors and connect them to your pool’s existing filtration plumbing. ST polypropylene collectors handle most standard roofs; Custom EPDM elastomer collectors are used where space is tight or the roof layout is complex. No separate pump is needed.

Controls and Automation

A roof-mounted solar sensor monitors conditions continuously. When the sun is right, the control system opens the diverter valve and routes water through the collectors before returning it to the pool at your set temperature. Set your target and the system handles the rest.

Ongoing Maintenance and Support

Once the system is running, Suntrek provides ongoing support, regular check-ups, and troubleshooting to keep everything operating at peak performance. For a full breakdown of what’s covered, the Service and Maintenance page has everything you need.

What Happens to the Old Heater

In most cases, homeowners keep the existing gas heater as a backup for rapid spa heating or unusually cold stretches. Solar handles the everyday pool heating load at no cost, while the gas unit sits ready when you need fast temperature recovery. This combination is the approach California pool heating has relied on for more than 50 years, and it’s the reason solar thermal remains the preferred primary system even under California’s Title 24 energy code updates.

For more on how California’s 2026 Title 24 requirements affect pool heating decisions, see: California Title 24 2026 Pool Heating Requirements: What Pool Builders and Homeowners Need to Know.

Is Your Roof the Right Fit?

Most California and Nevada homes have the roof space needed for a solar pool heating system,  south, west, or east-facing slopes all work well, as do flat roofs. The main constraint is heavy shading during peak sun hours. If one section can’t support the full system, Suntrek can split collectors across multiple areas or go ground-mounted or patio cover instead.

Suntrek manufactures two proprietary collector systems, each built for different roof conditions and project types:

• Suntrek Custom: Built for complex or space-limited roofs. Uses flexible EPDM elastomer tubing that conforms around vents, skylights, hips, and valleys, with a patented manifold and turbulent flow channels for maximum heat transfer. Every collector is built to a custom size, perfectly tailored to your roof layout.
  • Available in any size — fully modular and made-to-order for your specific roof
• Suntrek ST: The standard solution for straightforward projects. Rigid polypropylene construction with an individual water channel design that captures 360° solar radiation, reduces wind lift, and ensures consistent performance across rooftop and ground-mount installations.
  • 4×8 — ideal for smaller pools or limited roof space
  • 4×10 — the most common size for residential pools
  • 4×12 — suited for larger pools or maximizing collector coverage

Both systems are engineered for decades of performance, with fewer roof penetrations than competing products and proven weather resilience. Suntrek has been manufacturing, installing, and servicing solar pool heating systems since 1991,  with over 30,000 systems in the ground across California and Nevada. Every installation starts with a free site evaluation and a quote built to your specific pool and roof. To schedule your free estimate or learn more about available systems, call Suntrek at (949) 348-9276