Solar Pool Heater Comparison

In the 40+ years since the first polymer solar pool heaters were invented, there have been some great products and some not-so-great products. Though the sun has set on most of the not-so-great products, it’s still true that not all solar pool heaters are created equal.

Here are a few reasons why we think we’re better than the rest.

Aquatherm-solar-pool-heater
FAFCO
(Sunsaver & Sunsaver ST)
Magen eco-Energy
(Heliocol & SunStar)
solar-pool-heater-made-in-usa
Made in U.S.A.
Solar Pool Heater Yes

Lakewood, NJ
Solar Pool Heater Yes

Chico, CA
Solar Pool Heater No

Magen, Israel
iso-manufactured-solar-heater
ISO 9001:2008 Quality Standards
Globally-recognized quality management standard.
Solar Pool Heater Yes
Solar Pool Heater No
Solar Pool Heater Yes
nsf-approved-solar-pool-heater
Commercial Grade NSF-50 Listed
Meets strict safety, durability, and toxicity standards
required by most states for commercial pool equipment.
Solar Pool Heater Yes

(System Approval)
Solar Pool Heater No
Solar Pool Heater Yes

(Collectors Only)
iapmo-solar-pool-heater
IAPMO Performance Certified
Performance-rated and certified by the International Association of
Plumbing & Mechanical Officials (IAPMO) to SRCC Standard 100
Solar Pool Heater Yes
Solar Pool Heater No
Solar Pool Heater No

TUBE & WEB

Round tubes joined by a center- or bottom-web and expansion joints.

***

Highest-performing design

***

Design allows for thermal expansion & contraction; extends service life

***

Web can be “vented” with slots or slits for wind-load and roof moisture relief

***

Multi-plate, thermally-welded and insert-molded construction

***

Direct, metered manifold delivers balanced flow through collector and prevents “hot-spots”

***
Products Include…

Solar Industries

Ecosun

Ultrasun

Ultra-Swim

Sun-Swim

Sun-Swim Plus

Sunlite

Ecolite

 
 

TUBE ON TUBE

Round (or square) tubes connected without any separation between.

***

Plagued by warping and buckling, which weakens collector and reduces lifespan

***

Monolithic design; poor wind-load & moisture relief

***

Design does not permit thermal expansion & contraction

***

Indirect, metered flow using secondary manifold/subplenum results in larger pressure drop

***

Products Include…

Sunsaver

Revolution

Sungrabber / Solar Bear

Techno-Solis (square tubes)

SEPARATED TUBE

Individual tubes are held together with spacer bars; surrounded by air.

***

Exposed tubes lose heat faster to cool air

***

Loose tubes trap organic debris under collectors

***

Indirect, non-metered manifold causes unbalanced flow

***

Products Include…

Heliocol

SunStar

Sunsaver ST

Solar Pool Heaters Compared by Performance 

Solar collector performance ratings are commonly expressed in BTUs Per Square Foot Per Day.

What this means, in other words, is how much heat energy (British Thermal Units, or BTUs) can be transferred to the heat transfer fluid (pool water, for example) per square foot of solar collector area, over a given time period.

Since collectors can come in many sizes, heat transfer per sq. ft. of collector area gives the best “apples-to-apples” comparison.

The following independent ratings are published by the Florida Solar Energy Center.

 

TOTAL SOLAR ENERGY AVAILABLE PER DAY (FSEC 10-hour day)
1,600 BTUs Per Square Foot Per Day
AQUATHERM ECOSUN®​
93.5% Thermal Efficiency
1,100 BTUs Per Square Foot Per Day

Source: Florida Solar Energy Center, Certification # 00617

HELIOCOL® HC-50​
83.7% Thermal Efficiency
1,000 BTUs Per Square Foot Per Day

Source: Florida Solar Energy Center, Certification # 98002

FAFCO SUNSAVER® ST
81.1% Thermal Efficiency
900 BTUs Per Square Foot Per Day

Source: Florida Solar Energy Center, Certification # 98022C

 

SUNSAVER, SUNSAVER ST, REVOLUTION, AND SOLAR BEAR ARE REGISTERED TRADEMARKS OF FAFCO, INC. (CHICO, CA)
HELIOCOL & SUNSTAR ARE REGISTERED TRADEMARKS OF MAGEN ECO-ENERGY (MAGEN, ISRAEL)