- This document discusses different types of pool heaters, including the industry standard light residential/commercial duty heaters and industrial grade indirect pool heaters. - The industry standard heaters are typically low mass copper or copper-nickel units with 80-86% efficiency but a short lifespan of 3-7 years under heavy loads. They have low costs but disadvantages like corrosion from chlorine. - Industrial grade indirect pool heaters have advantages like lasting 40 years with efficiencies up to 86% and avoiding flame impingement. They have higher initial costs but lower long term costs of ownership. Diagrams show examples of indirect heater setups for outdoor, water source heat pumps, and pool applications.

1. Commercial Products Corp. –
Indirect Pool Heating Overview
Pool Seminar #25612

2. Commercial Products Corp. –
At A Glance
- Heat Transfer Solutions Since 1972
- Founded in Tampa, FL
- Focus is hydronic, domestic, and steam systems
- In-House Startup and Owner Training

3. Boiler Types

4. Industry standard:
Light, Residential/Commercial Duty
Typical Pool Heater
• Normally a low mass .065 wall copper fin or cooper
nickel units, 80 to 86% efficiency
• Minimal heating surface and mass, normally 1-2 sf
per boiler horsepower
• Some models now available with Stainless Steel
condensing secondary heat exchanger to 99%

5. Industry standard
Light, Residential/Commercial Duty
Typical Pool Heater
Advantages
• Low initial cost
• Small footprint
• Many Manufactures to chose from
• Lots of fancy interfaces and control options
• Most outdoor units stackless
• Under light loads, can last a long time(i.e. residential use)

6. Industry Standard
Light, Residential/Commercial Duty
Typical Pool Heater
Disadvantages
• Under heavy loads or long periods
of use, short life span of tubes or heater (3-7 years
typical)
• Non condensing designs will condense with out
primary secondary loop or built in 3 way blending
valve.

7. Industry standard
Light, Residential / Commercial duty
Typical Pool Heater
Disadvantages
• Stainless condensing section very susceptible to corrosion
with chlorines especially in salt water pools)
• Chlorine and or acid vapors in heater area will eat through .
065 wall material quickly from outside in via combustion
chamber.

8. Industrial Grade
Non Condensing
INDIRECT POOL HEATERS

9. INDIRECT WATER HEATERS

10. Indirect Water Heating
Advantages
• Indirect heat – no flame impingement on heat transfer area
• Furnace temp - always above dew point, even with 40 deg. F
return water
• Industrial Grade heater some units like Parker - 11 gauge (.12
wall burner heat transfer area)
• Efficiencies to 86%
• Long lasting – 40 years.
• Low cost of ownership
• Indoor / Outdoor Applications

11. Indirect Water Heater
Disadvantages
• Higher initial Cost
• Longer footprint
• Limited number of manufacturers

12. Parker Indirect Water Heater
Atmospheric – Outdoor Schematic
Available Sizes:
300 MBTUH –
3000 MBTUH

13. Parker Indirect Heater
Water Source Heat Pump Piping Diagram

14. Parker Indirect Heater
Pool Piping Diagram

15. Commercial Products
www.commercial-products.net

16. Commercial Products Corp.
Heat Transfer Solutions Since 1972
QUESTIONS?