What Size (Heat Output BTUH) Heat Siphon?

3 Basic Sizes: 2.25HP, 3.25HP and 5HP - QUICKSIZE or HSA

Use QUICKSIZE GUIDELINES below OR - ASK US FOR A FREE HEAT SIPHON SIZING REPORT*

FIRST - What is your POOL SURFACE AREA?

Not sure what size your pool is? -Download FREE POOL CALCULATOR - (Excel Spreadsheet)

Sizing Depends on Your Pools Surface Area & Heat Loss.

Determining pool heat loss is quite complex, but some simple assumptions apply to both the higher latitudes and the warm tropics:

1. Most people swim when the daily average air temperature is over 70°F (21°C).
2. Most pool owners do not use a solar cover except in the coldest months.
3. Most pools are kept about 10°F (5°C) above the average air temperature.
4. Since pools lose about 75% of there heat due to evaporation of the water, a pool heater should be sized based on the pool surface area.

If these assumptions don't not apply to your pool we'll be happy to FAX, mail or email you a FREE COMPUTER PRINTOUT OF OUR HEAT SIPHONALYSIS ALSO KNOWN AS THE HEAT SIPHON SIZING REPORT to pick the right Heat Siphon for your pool. OR JUST CALL US TOLL FREE : 888-537-8443

IF THE ABOVE ASSUMPTION APPLY TO YOUR POOL we recommend the following SIZES based on your surface area:

• 2.25HP Heat Siphon is limited above ground and in ground pools up to 350 sq ft (no cover) and 450 sq ft covered.
• 3.25HP Heat Siphon will heat pools from 450 sq ft (47 M sq) to 700 sq ft (65 M sq) in surface area even with little or no solar cover use.
• 5HP Heat Siphon for larger pools between 800 sq ft (75 M sq) and 1000 sq ft (93 M sq) and will need a cover in the coldest month and in very windy locations.

HEAT SIPHON FAST FACTS - Our FREE 4 PAGE HeatSiphonalysis POOL HEATING COST & SIZING REPORT developed and refined over the last thirty years uses sophisticated heat transfer and thermodynamic modeling techniques and it has proven to be accurate to within 10 to 15% when predicting actual pool heat loss, confirmed by actual pool heating fuel cost records.

QUICKSIZE Your Pool:

There are three basic sizes /models of Heat Siphon, all based on the Compressor Horsepower and thus an approximate heat output:

• 2.25HP - 50,000 BTUH
• 3.25HP - 75,000 BTUH
• 5HP - 100,000 BTUH

Since the size you need is based on your POOL SURFACE AREA as detailed to the left, here are the most common ABOVE GROUND & IN GROUND Pool sizes:

2.25HP - up to 15 ft x 30 ft Covered (smaller sizes no cover)

3.25HP - No Cover: 16 ft x 32 ft

Covered: 18 ft x 36 ft to 20 ft x 40 ft

5HP - No Cover: 18 ft x 36 ft

Covered: up to 20 ft x 50 ft

WHAT ABOUT A SPA?

Certified Performance

We are so confident in the accuracy of our computer Heat Siphonalysis program that we call it our CERTIFIED PERFORMANCE SIZING program and guarantee that the size and number of Heat Siphon's recommended will perform as specified or you can return them and we will refund 100% of our purchase price upon there return.