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MasterTemp Pool Heater

MasterTemp Pool Heater

Pentair MasterTemp Pool Heater


Model MasterTemp Standard Residential heaters BTU Gas Type Free Shipping
460792 MasterTemp, Low NOx heater 175,000 Natural Gas $1395

460793 MasterTemp, Low NOx heater 175,000 Propane $1495

460730 MasterTemp, Low NOx heater 200,000 Natural Gas $1495

460731 MasterTemp, Low NOx heater 200,000 Propane $1589

460732 MasterTemp, Low NOx heater 250,000 Natural Gas $1573

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

460734 MasterTemp, Low NOx heater 300,000 Natural Gas $1649

460735 MasterTemp, Low NOx heater 300,000 Propane $1689

460736

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

460737 MasterTemp, Low NOx heater 400,000 Propane $1949



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 $1995
460805 MasterTemp, Heavy Duty w/ Cupro-Nickel heat exchanger for use with salt systems 250,000 Propane $2289
460775 MasterTemp, Low NOx ASME commercial heater 400,000 Natural Gas $2389
460776 MasterTemp, Low NOx ASME commercial heater 400,000 Propane $2389



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
Pentair MasterTemp Pool Heater 175,000 BTU natural gas
Product ID : 460792
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,495.00
Pentair MasterTemp Pool Heater 175,000 BTU Propane
Product ID : 460793
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,555.00
Pentair MasterTemp Pool Heater 200,000 BTU natural gas
Product ID : 460730
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,569.00
Pentair MasterTemp Pool Heater 200,000 BTU Propane
Product ID : 460731
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,569.00
Pentair MasterTemp Pool Heater 250,000 BTU natural gas
Product ID : 460732
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,595.00
Pentair MasterTemp Pool Heater 250,000 BTU Propane
Product ID : 460733
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,595.00
Pentair MasterTemp Pool Heater 300,000 BTU natural gas
Product ID : 460734
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,749.00
Pentair MasterTemp Pool Heater 300,000 BTU propane
Product ID : 460735
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,749.00
Pentair MasterTemp Pool Heater 400,000 BTU natural gas
Product ID : 460736
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,895.00
Pentair MasterTemp Pool Heater 400,000 BTU Propane
Product ID : 460737
Pentair MasterTemp high-performance pool heater, clean burning w/ digital...
$1,895.00
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Pentair MasterTemp Pool Heater