Raypak Raytherm Commercial Swimming Pool Heaters
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Only Raypak offers a pool heater that is not only the most efficient (up to 82% thermal efficiency) but also includes, as standard, engineering and manufacturing innovations not found in other heaters. As a result, a Raypak commercial pool heater is unmatched for heating efficiency, operating economy, low-cost installation and all-around dependability. They are fired up and fully tested at the factory to assure their on-site performance. Check these standard features and see why Raypak is the best!
Electronic Pilot Ignition... Saves fuel, no standing pilot.
100% Copper and Bronze Waterways... Bronze headers and copper finned tubes prevent corrosion and rust which can stain the pool and destroy the heater.
1" Diameter Finned Copper Tubes... Better water flow, lower pressure drop through heater.
UniTherm Governor... Patented 3-way valve automatically maintains the water in the heater at the precise temperature that prevents condensation and scale. Model 514 through 1223.
External Recirculation System with dual thermometers... Maintains a constant water temperature. Model 1287 through 4001.
Interlocking Combustion Chamber... Cuts heat loss for best efficiency. Keeps jacket cool.
Dual Gas Valves... For safety.
Lifetime Stainless Steel Burners... Can’t clog or corrode.
Slide-out Burner Tray... For easy inspection.
Vent Top (outdoor only)... Wind, rain and debris proof.
Tough, Durable Polytuf Powdercoat Finish... Long-lasting all-weather protection in warm Powder Beige color.
How to Select the Right Size Raypak Heater:
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Select the desired swimming temperature of the pool water.
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Determine the average temperature of the coldest month in which the pool will be used.
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Subtract the mean temperature from the desired swimming temperature. The difference is the temperature rise.
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Calculate the surface area of the pool in square feet.
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Under the column headed by the temperature rise determined in Step 3, find the number close to, but not less than, the pool surface area from Step 4. On that line, in the Model Number column, will be the indoor and/or outdoor heater model numbers for the correct heater size.
Sizing Formula
BTU input required = Pool Area (Sq. Ft.) × Desired Temperature Rise × 15. Formula is based on 1° to 1.25°F temperature rise per hour and 3.5 MPH average wind. Where high wind conditions exist, select heater one size larger than determined by formula or this table.
Faster Heating
For 1.5°F rise per hour, increase BTUH input by 50%. For 2°F rise per hour, increase BTUH input by 100%. Always select a heater equal to or larger than the requirement. Oversizing generally reduces fuel cost.
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Desired Temperature Rise
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Model
Number
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BTU Natural Gas (x 1000)
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20° F
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25° F
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30° F
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35° F
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Indoor **
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Outdoor**
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Pool Area (Square Feet)
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Input
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Output
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Input
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Output
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1700
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1360
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1135
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970
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514
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511.5
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409.2*
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511.5
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409.2*
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2090
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1670
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1390
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1190
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624
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627.0
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501.6*
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627.0
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501.6*
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2420
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1935
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1610
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1380
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724
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726.0
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580.8*
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726.0
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580.8*
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2750
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2200
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1830
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1570
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824
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825.0
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660.0*
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825.0
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660.0*
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3085
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2465
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2065
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1760
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926
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926.0
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740.8
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962
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961.7
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769.4
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3610
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2885
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2405
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2060
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1083
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1083.0
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866.4
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1125
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1124.7
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899.8
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3925
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3140
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2615
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2240
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1178
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1178.0
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942.4
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1223
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1222.5
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978.0
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4250
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3430
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2860
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2450
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1287
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1287.0
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1029.6
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1336
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1336.6
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1069.3
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4710
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3765
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3140
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2690
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1414
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1413.0
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1130.4
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1468
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1467.0
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1173.6
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5230
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4185
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3485
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2990
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1571
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1570.0
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1256.0
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1631
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1630.0
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1304.0
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5860
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4685
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3905
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3345
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1758
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1758.0
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1406.4
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1826
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1825.6
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1460.5
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7000
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5600
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4665
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4000
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2100
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2100.0
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1722.0
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8330
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6660
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5550
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4760
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2500
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2499.0
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2049.2
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10,000
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8000
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6665
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5710
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3001
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3000.0
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2460.0
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11,665
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9330
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7775
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6665
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3500
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3500.0
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2870.0
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13,330
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10,665
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8885
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7615
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4001
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4000.0
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3280.0
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*Manufacturer's Rating **Refers to the location of the heater
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Please contact us for pricing, specifications, or replacement parts for your Raytherm heater.
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