MASTERTEMP
Rev. C 3/2019
®
125 HEATER REPLACEMENT PARTS
REPAIR PARTS – BURNER SYSTEM
Key
Part
No.
Description
1
Combination Gas Control Valve Kit
2
3/4" Union
3
Gas Orifice
4
Gas Orifice O-Ring
•
Gas Orifice Kit – NG (Incl. Key Nos. 3 and 4)†
•
Gas Orifice Kit – Propane (Incl. Key Nos. 3 and 4)†
•
NG to Propane Conversion Kit
(Incl. Key Nos. 3 and 4)†
•
Propane to NG Conversion Kit
(Incl. Key Nos. 3 and 4)†
5
Air Blower Kit
Natural Gas Units
Propane Units
•
Air Orifice Kit (Includes Key Nos. 6 and 7)
6
Air Orifice Kit
7
Air Orifice Grill
•
Blower/Adapter Plate Gasket Kit
(Includes Key Nos. 8, 9, 10, 12)
•
Flameholder Kit (Includes
Key Nos. 10, 11, 12, 13)
8
Blower/Adapter Plate Gasket
9
Blower Adapter Plate
10
Flameholder/Adapter Plate Gasket
11
Flameholder Assembly
12
Flameholder/Combustion Chamber Gasket*
13
Flameholder Insulation Cap
•
Flameholder Insert
14
Combustion Chamber Gasket Kit
15
One Piece Metal Chamber/Combustion Chamber
Assembly (9-bolt)
•
Insulation Kit (Includes Key No. 13, 16, 17,18,19)
16
Bottom Outer Insulation Blanket*
17
1" Bottom Inner Insulation
18
1" Top Insulation
19
Top Outer Insulation Blanket*
•
Lower Enclosure Insulation
20
One Piece Metal Elbow/Combustion Chamber
Cover Assembly (9-bolt)
21
Metal Vent Cover
22
Heater Top
23
Side Panel {Service Panel}
24
Side Panel {Manifold}
Heater Bottom
25
26
Side Panel {Flue Stack}
27
J-Box Cover
28
Screws/Clips Kit, Panel (8 ea. clips & 8 ea. screws)
•
Combustion Air Intake Duct Connection Kit
*
Not available separately.
**
Not included with heater. Order separately .
Section 6. Maintenance/Replacement Parts
Qty.
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MASTERTEMP 125 Pool and Spa Heater Installation and User's Guide
Model
MT125 NA
MT125 LP
42001-0051S
38404-4097S
474981
474980
461063
461062
474978
474977
474979
77707-0011
474994
474952
474990
77707-0008
42001-0074S
474958
42002-0005S
42002-0034Z
474991
474992
42002-0031Z
474993
42002-0041Z
474292
CALL
51