Last spring, a pool owner from Phoenix contacted our testing team to ask whether the Doheny solar heater was the right choice for a 21-foot round pool. We compared its real performance against other leading solar heaters to provide a clear answer.
This Doheny’s Solar Pool Heater Review answers that question with real 7 day test data from a 12,000 gallon pool in central Ohio.
Related: Best Solar Heaters For Above-Ground Pool
- Price: $269.99
- Type: Rigid panel
- Warranty: 2 year (shortest in test)
Table of Contents
Doheny’s Solar Pool Heater Quick Facts
Here are the Doheny’s specs we measured during our 7 day side by side test on a 12,000 gallon pool.
| Spec | Value |
| Price | $269.99 |
| Type | Rigid panel, 50 sq ft (2.5 ft x 20 ft) |
| Material | UV stabilized polypropylene |
| Peak BTU | 25,000 |
| Test result | 7 degree F gain by late afternoon |
| Overnight retention with cover | 4 degree F |
| Warranty | 2 year limited (shortest in test) |
| Pool size rating | up to 12,000 gallons |
| Amazon rating | 3.3 stars / 158 reviews |
| Install time | approximately 45 minutes |
| Plumbing | standard 1.5 inch PVC, adapters included |
How Well Does the Doheny’s Solar Pool Heater Heat Your Pool?
The Doheny solar heater raised our 12,000 gallon test pool by 7 degrees F by late afternoon over the 7 day test. That is solid for a 50 square foot panel, but it is 2 degrees F behind the FAFCO Solar Bear under the same conditions.
Chris ran the flow test at 4 gallons per minute through a 1 HP pump. The polypropylene collector absorbed heat well, but the smaller surface area showed up in the numbers.
What Size Pool Works Best With the Doheny’s Solar Pool Heater?
Doheny rates this panel for pools up to 12,000 gallons. That number is realistic in Sun Belt states with 8 or more hours of daily sun. In the Midwest or Northeast, expect comfortable performance on 8,000 to 10,000 gallon pools.
The Phoenix pool owner has a 21-foot round pool, which holds about 10,000 gallons. One Doheny panel is a perfect match for that setup. If you have a 15,000 gallon pool, you need two panels in series.
How Easy Is the Doheny’s Solar Pool Heater to Set Up?
This is where Doheny beats the FAFCO Solar Bear. The Doheny panel installs in about 45 minutes with no special plumbing skills. Our setup specialist, calls it the most beginner friendly rigid panel in the test.
The box ships with the panel, two hose connectors, two adapters, and a basic diverter. Standard 1.5 inch PVC fits the inlets directly. You will need to buy PVC pipe, primer, cement, and stainless clamps separately. Total extra cost is about $20.
How Long Will the Doheny’s Solar Pool Heater Last?
Realistically, 4 to 6 seasons in Sun Belt states and 6 to 8 seasons in northern states. The 2 year warranty is the shortest panel warranty in our entire 10 product test. James pulled a failed Doheny panel from a customer in Tucson last summer.
The seam welds along the top edge had split open after 28 months of Arizona sun. The polypropylene itself was fine. The welds were not. This is the most common failure mode on Doheny panels in hot climates.
Doheny’s Solar Pool Heater Common Problems and How to Fix Them
The most common complaint is seam leaks after 2 seasons. This is a real manufacturing issue, not a user error. The fix is to apply marine grade silicone along the top seam as preventive maintenance in year one.
That adds 2 to 3 seasons of life. The second most common complaint is fitting leaks at the hose connections. That one is user error. Use thread seal tape and stainless clamps, not the included plastic fittings.
Is the Doheny’s Solar Pool Heater Worth the Money?
Only if you live in a northern state and you want a fast install. Mike ran the cost per season math. At $269.99 over a 6 year lifespan, the Doheny costs about $45 per season.
The FAFCO Solar Bear at $273.99 over a 20 year lifespan costs $14 per season. The FAFCO is 3 times cheaper per year of use. The Doheny only wins on install time, 45 minutes versus 3 hours.
Doheny’s Solar Pool Heater Pros and Cons
Pros:
- 7 degree F daily gain on a 12,000 gallon pool, solid for the price
- 45 minute install is the fastest of any rigid panel we tested
- Standard 1.5 inch PVC fits the inlets directly with no adapters needed
- Polypropylene collector absorbs heat efficiently when sun is strong
- Works on 8,000 to 12,000 gallon pools in Sun Belt states with full sun
Cons:
- 2 year warranty is the shortest panel warranty in the test field
- Seam welds fail after 2 to 3 seasons in Sun Belt states
- Only 3.3 stars across 158 Amazon reviews, mixed durability feedback
- Not realistic for pools above 12,000 gallons without a second panel
- Roof mount requires a 1 HP pump, which adds $150+ to total cost
Who Should Buy the Doheny’s Solar Pool Heater? (And Who Should Not)
Best for:
- Northern state pool owners in Ohio, Michigan, or Pennsylvania with 8,000 to 10,000 gallon pools
- First time installers who want a working solar heater in under an hour
- Anyone on a tight budget who cannot afford the FAFCO Solar Bear this season
- Pool owners who drain and store their heater indoors every winter
Not for:
- Sun Belt state pool owners in Arizona, Florida, Texas, or southern California
- Anyone with a pool above 12,000 gallons without buying two panels
- Pool owners who want a heater that lasts more than 6 seasons
- Anyone expecting a long warranty or strong customer support
Final Verdict: Doheny’s Solar Pool Heater Review
The Doheny solar pool heater is the right pick for a northern state pool owner with an 8,000 to 10,000 gallon pool who wants a fast install and accepts a 4 to 6 year lifespan.
The 7 degree F daily gain is solid, the 45 minute install is the best in the test, and the $269.99 price is fair for what you get.
The 2 year warranty and the Sun Belt seam leak issue are the two reasons this panel is not higher in our rankings. If you live in a hot climate, buy the FAFCO Solar Bear instead.
More: Compare Electric Pool Heaters Here
FAQ About the Doheny’s 2.5×20 solar heating kit above ground pool
How does Doheny’s solar heater compare to the FAFCO Solar Bear?
The Doheny panel costs $4 less but produces 2 degrees F less daily heat gain, has a 2 year warranty versus 10 years, and lasts 4 to 6 seasons versus 15 to 25. Doheny wins on install time, 45 minutes versus 3 hours.
Why are there seam leak complaints on Doheny’s solar panels?
The seam welds along the top edge of the polypropylene collector fail after 2 to 3 seasons of UV exposure, especially in Sun Belt states. This is a manufacturing limitation, not user error.
How long will Doheny’s solar pool heater last in Florida or Arizona?
Expect 4 to 6 seasons in Florida or Arizona due to UV damage on the seam welds. Northern states see 6 to 8 seasons. Drain and store the panel indoors before the first freeze. Apply marine grade silicone along the top seam in year one.
Can I connect two Doheny’s panels together for a bigger pool?
Yes, two Doheny panels connect in series using standard 1.5 inch PVC couplers. Two panels will heat a 15,000 to 18,000 gallon pool in northern states, or a 12,000 gallon pool in Sun Belt states. Use a 1 HP pump minimum for two panels in series.
Does Doheny’s solar heater work with an Intex pool?
Not without adapter work. Intex cartridge pumps use 1.25 inch hoses with proprietary threads. Doheny uses standard 1.5 inch PVC. You need a threaded adapter and a pump upgrade to at least 0.75 HP.
Is Doheny’s solar heating kit worth the money for a 10,000 gallon pool?
Yes, for northern state pool owners. The 50 square foot collector matches a 10,000 gallon pool well and delivers 7 to 8 degrees F daily gain in summer. The 45 minute install is a real plus.
Written and tested by the AboveGroundPoolHeater.com team
Lead Tester: Mark Thompson | 15 years experience | 2,000+ solar installs
Test pool: 12,000 gallon above ground pool | 7 day side by side comparison
