Pentair Pool Heater
MasterTemp pool Heater
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Pentair MasterTemp Pool Heater

Pool heater sizing guideline



High performance, compact, energy-efficient pool Heater

- Controls rotate to 3 positions so there’s no need to reverse the header
- Quick-change orifice allows easy conversion of gas sources
- Compact design (21 L x 21W x 28 H) is easy to retrofit,
- Certified for low NOx emissions
- Superior “best-in-class” energy-efficiency
- Built-in carrying handles for easy transport
- Top-mounted, large format digital display for easy viewing

Pentair MasterTemp pool and spa heaters are designed to be a reliable, efficient and durable solutions to heating your pool or spa. The key to pool or spa heating economy is combustion efficiency. Getting there requires an optimum combination of combustion chamber design, burner assemblies and materials, heat exchangers, and state-of-the art heater insulation.

MasterTemp pool and spa heaters are all that and more. Available in a wide range of sizes (200,000 btu,and 400,000 btu) and in natural gas and propane versions. The MasterTemp heater is a new generation pool and spa heater with all the quality features of the Max-E-Therm but packed with extra features such as Digital Display Temperature Controller (DDTC) and Low NOx certified to meet environmental emission standards for Southern California (SCAQMD) and Texas.

Model Description BTU Gas Type Sale Price
460792 MasterTemp, Low NOx heater 175,000 Natural Gas $1495

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460793 MasterTemp, Low NOx heater 175,000 Propane $1595

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460730 MasterTemp, Low NOx heater 200,000 Natural Gas $1569

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460731 MasterTemp, Low NOx heater 200,000 Propane $1569

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460732 MasterTemp, Low NOx heater 250,000 Natural Gas $1595

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460733 MasterTemp, Low NOx heater 250,000 Propane $1595

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460734 MasterTemp, Low NOx heater 250,000 Propane $1749

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460735 MasterTemp, Low NOx heater 250,000 Propane $1749

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460736

MasterTemp, Low NOx heater 400,000 Natural Gas $1895

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460737 MasterTemp, Low NOx heater 400,000 Propane $1895

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Pentair MasterTemp ASME commercial pool heaters

Model ASME Commercial & Heady Duty heaters BTU Gas Type Free Shipping
460771 MasterTemp, Low NOx ASME commercial heater 250,000 Natural Gas $2195
460772 MasterTemp, Low NOx ASME commercial heater 250,000 Propane $2195
460806 MasterTemp, Heavy Duty w/ Cupro-Nickel heat exchanger for use with salt systems 250,000 Natural Gas $2039
460805 MasterTemp, Heavy Duty w/ Cupro-Nickel heat exchanger for use with salt systems 250,000 Propane $2197
460775 MasterTemp, Low NOx ASME commercial heater 400,000 Natural Gas $1573
460776 MasterTemp, Low NOx ASME commercial heater 400,000 Propane $1595

 

Pentair MasterTemp pool heater: Reliable "Two Stage Ignition"

In addition to the quality features of all MasterTemp series heaters such as strong corrosion-resistant stainless steel burners, durable composite top and headers, and a weatherproof anodized aluminum exterior, the MasterTemp TSI incorporates a "Two Stage Ignition" Process for a reliable positive ignition sequence and soft, dependable flame stabilization.

Pentair MasterTemp pool heater: Efficient

The MasterTemp series pool and spa heaters are economical to operate and heat up very fast, due to the energy-efficient "Hot Surface" Ignition and precise electronic temperature control. "Intelligent" controls that sense water temperature and pressure for optimum flow combine to maintain desired water temperature without overheating or wasting energy. With thermal efficiency in excess of 82%, MasterTemp heaters provide maximum efficiency and performance.

Pentair MasterTemp pool heater: Efficiency Features

> Lightweight ceramic fiber tile insulation facilitates cooler operation and uniform heat dissipation

> Unique combustion chamber design that quickly ventilates residual heat after shutoff

> Digital controlled thermostat offers precise temperature control within 1/2 degree F to minimize overheating and save energy.

> 2" Connection provide performance flow rates up to 120 gpm (gallons per minute) with very low resistance

> Silicone-sealed combustion chamber system helps minimize fuel consumption

> Patented flow valve senses both water temperature and pressure, regulates precise water flow rates, and minimizes condensation and scaling

Pentair MasterTemp pool heater: Installation and Service Features

> Patented inverted header design allows direct connection to schedule 40 PVC pipes

> Direct PVC connection eliminates the need for metal heat sink, saving plumbing space between equipment

> CPVC bulkhead connections and reversible headers make installation fast and easy

> Reversible water connections allow safe and easy reversal of piping connections, without removing the heat exchanger, breaking insulation seals, or losing thermal efficiency

> Easy remote connections eliminate the need for special wiring - MasterTemp series heaters are pre-wired for all major brand pool and spa automation

> Indoor installation with an easily installed venting adopter

 

Pool heater sizing and selection guide
To select the appropriate pool or spa heater for your needs, look at the first column of the tables below and decide how much you want to heat up the water in 24 hours and then look up the corresponding column for the heater BTU capacity.
The pool surface area also gives you an idea how much the heater will raise the temperature of the water in 24 hours period. The faster you want to heat the pool the higher the BTU rating of the heater should be.
You may also want to check that your current natural gas pipe size is big enough to support the specific BTU rating of the heater you're looking to buy.
For Example: for a 250,000 btu heater that is about 40 ft away from the gas meter and the gas line has a total of four right angle turns, you should at least have a gas pipe size of 3/4" or bigger. For heaters rated at more than 250,000 btu, or the distance from the gas meter to heater is more than 50 ft. or the gas line has more than four right angle turns (90 degree turns), consult a pool professional before deciding on a pool heater.

 

Heater Size
Heating capacity in gallons

°F
Temperature
Change/
24 Hrs.
Model
175
Model
200
Model
250/250HD
Model
300
Model
400/400HD
5
10
15
20
25
30
35
40
85,210
42,605
28,403
21,303
17,042
14,201
12,173
10,651
97,383
48,691
32,461
24,346
19,477
16,230
13,912
12,173
121,729
60,864
40,576
30,433
24,346
20,288
17,390
15,216
146,075
73,037
48,692
36,519
29,216
24,345
20,868
18,260
194,766
97,383
64,922
48,691
38,953
32,461
27,824
24,346
Heater Size
Pool Surface Area in Sq. Ft. at 5.5' Depth
°F
Temperature
Change/
24 Hrs.
Model
175
Model
200
Model
250/250HD
Model
300
Model
400/400HD
5
10
15
20
25
30
35
40
2,069
1,034
690
517
414
345
296
259
2,364
1,182
788
591
473
394
338
295
2,955
1,478
985
739
591
493
423
369
3,546
1,773
1,182
887
710
591
507
443
4,727
2,364
1,576
1,182
945
788
675
591
Spa Volume (Gallons)*
Volume of spa (gallon)
Minutes for 30°F Temperature Rise (Heater Input in 1000 BTU/HR)
Heater model
200
300
400
500
600 700 800 900
1000
175
200
250/250HD
300
400/400HD
21
18
15.8
13.5
9
31.0
27.0
23.5
20.0
13.0
40.0
35.0
30.8
26.5
18.0
50.0
44.0
38.5
33.0
22.0
61.0
53.0
46.5
40.0
27.0
71.0
62.0
54.3
46.5
31.0
81.0
71.0
62.0
53.0
35.0
91.0
80.0
70.0
60.0
40.0
102.0
89.0
77.8
66.5
44.0


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Mastertemp Piscina precio de venta versión española