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MasterTemp Gas Heater -
Pentair |
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small footprint, Big Heater

Data Sheet
Owner's Manual

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MasterTemp™ is a powerful electronic gas heater placed in a space saving
enclosure. All four models measure the same cabinet size, ( 21 L x 21W x 28
H ) less vent and water connections.
Until you see this heater up close, you won't believe how
space saving this heater really is. Heater is
power vented and water connections are unionized for easy installation.
Controls rotate to 3 positions so there’s no need to reverse the header.
All units are stocked as natural gas heaters. Request conversion kit if
propane is required. Quick-change orifice allows easy conversion of gas
sources. Propane heaters from the factory are available as a
special order item.
DO NOT convert ASME models.
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Natural Gas Heaters |
|
H2O # |
Manf. # |
Description |
|
2240109 |
460730 |
200,000
BTU, Natural,
Electronic |
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2240119 |
460732 |
250,000 BTU, Natural,
Electronic |
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2240129 |
460734 |
300,000 BTU, Natural,
Electronic |
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2240139 |
460736 |
400,000 BTU, Natural,
Electronic |
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2240141 |
460775 |
400,000 BTU, Natural,
Electronic, ASME |
Propane Gas
Heaters |
|
H2O # |
Manf. # |
Description |
|
2240114 |
460731 |
200,000 BTU, *Propane,
Electronic |
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2240123 |
460733 |
250,000 BTU, *Propane,
Electronic |
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2240133 |
460735 |
300,000 BTU, *Propane,
Electronic |
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2240144 |
460737 |
400,000 BTU, *Propane,
Electronic, |
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2240147 |
460776 |
400,000 BTU, *Propane,
Electronic,
ASME |
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*Note - Propane Models are
Special Order Only |
Natural Gas to Propane Conversion Kits |
|
H2O # |
Manf. # |
Description |
|
- |
77707-1461 |
200,000 BTU,
Natural Gas to Propane Conversion Kit |
|
- |
460741 |
250,000 BTU,
Natural Gas to Propane Conversion Kit |
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- |
460755 |
300,000 BTU,
Natural Gas to Propane Conversion Kit |
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2250939 |
77707-1441 |
400,000 BTU,
Natural Gas to Propane Conversion Kit |
Kit comes with Instructions
and Conversion Label
NOTE -
DO NOT convert ASME models |
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Features: |
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Controls rotate to 3 positions so there’s no need to reverse the header.
Heater is power vented and
water connections are unionized for easy installation.
Optional Quick-change orifice
allows easy conversion of gas sources
Compact design (21 L x 21W x 28
H ) less vent and water connections.
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
Tough, rustproof exterior
handles the heat and weathers the elements
User-friendly indicator lights
make system operation and monitoring a snap
Safe operation assured through
a series of features, including: |
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Water pressure switch
High limit switches
Manual gas shut-off when
service is required
Stack flue sensor
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Pool Sizing |
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°F
Temperature
Change/24 Hrs |
Heater Size |
Heater Size |
|
Model
200 |
Model
250 |
Model
300 |
Model
400 |
Model
200 |
Model
250 |
Model
300 |
Model
400 |
|
Pool
Capacity in Gallons |
Pool
Surface Area in Sq Ft. at 5.5 ft Depth |
|
5 |
97,383 |
121,729 |
146,075 |
194,766 |
2,364 |
2,955 |
3,546 |
4,727 |
|
10 |
48,691 |
60,864 |
73,037 |
97,383 |
1,182 |
1,478 |
1,773 |
2,364 |
|
15 |
32,461 |
40,576 |
48,692 |
64,922 |
788 |
985 |
1,182 |
1,576 |
|
20 |
24,346 |
30,433 |
36,519 |
48,691 |
591 |
739 |
887 |
1,182 |
|
25 |
19,477 |
24,346 |
29,216 |
38,953 |
473 |
591 |
710 |
945 |
|
30 |
16,230 |
20,288 |
24,345 |
32,461 |
394 |
493 |
591 |
788 |
|
35 |
13,912 |
17,390 |
20,868 |
27,824 |
338 |
423 |
507 |
675 |
|
40 |
12,173 |
15,216 |
18,260 |
24,346 |
295 |
369 |
443 |
591 |
|
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Spa Sizing |
|
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Spa Volume in Gallons
|
|
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1,000 |
|
Model |
Minutes for 30° F
Temperature Rise ( Heater Input at 1000 BTU per Hour ) |
|
200 |
18.0 |
27.0 |
35.0 |
44.0 |
53.0 |
62.0 |
71.0 |
80.0 |
89.0 |
|
250 |
15.8 |
23.5 |
30.8 |
38.5 |
46.5 |
54.3 |
62.0 |
70.0 |
77.8 |
|
300 |
13.5 |
20.0 |
26.5 |
33.0 |
40.0 |
46.5 |
53.0 |
60.0 |
66.5 |
|
400 |
9.0 |
13.0 |
18.0 |
22.0 |
27.0 |
31.0 |
35.0 |
40.0 |
44.0 |
Note: This chart is
based on a 30° F (-1°C) temperature rise,
discounting loses and only based on heat required to raise temperature
in minutes. |
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Replacement Heat
Exchangers for MasterTemp Gas Heaters -
Pentair |
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The proper part name for a
heat
exchanger in a MasterTemp is called,
Tube Sheet Coil Assembly.
picture
unavailable
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Exchangers come as a kit, which includes a Coil/Tubesheet Sealing O-Ring
Kit.
NOTE: Exchanger replacements on ASME models require that you order the
exchanger and the manifold assemble all as one unit. Please contact
purchasing for information on special ordering these replacements.
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Heat Exchanger Replacements for MasterTemp |
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H2O # |
Manf. # |
Description |
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9875045 |
77707-0232 |
Exchanger for 175,000 and 200,000 BTU models |
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9875060 |
460747 |
Exchanger for 250,000 BTU models |
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9875055 |
77707-0233 |
Exchanger for 300,000 BTU models |
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9875060 |
77707-0234 |
Exchanger for 400,000 BTU models |
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Sorry, we are not a retailer.
We sell wholesale to businesses associated with the Pool / Spa and Water
Industries only.
©
2008 H2O Company Inc.
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