Product Description
The HEAT & GLO SRV4021-383 high limit switch services HHT-brand gas fireplaces, such as Heatilator & Heat N Glo models. This high limit switch opens when a temperature of 325°F is detected and remains closed otherwise. It is a replacement high temp limit switch / thermodisc for Hearth & Home gas stoves and fireplaces.
- High limit switch
- Opens when a temperature of 325°F is detected
- Compatible with Heatilator & Heat N Glo models
Product Highlights
This high limit switch is designed for use in gas stoves and fireplaces, ensuring safety by activating at 325°F. It is compatible with Heatilator and Heat N Glo models.
Product Information
Standard Information
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Brand: HEAT & GLO
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Manufacturer Part Number: SRV4021-383
Technical Specifications
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Part Number: SRV4021-383
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Compatible Brands: Heat-n-Glo, Heatilator
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Type: High Limit Switch, Also referred to as a Snap Disc, Thermodisc, and High Temp Sensor. This switch is rated at 325 Degree Fahrenheit and is Normally Closed. If temperatures exceed 325 degrees, this switch will open and break the circuit to the connected components. This is an auto reset switch and will reclose at 250 degrees Fahrenheit.
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Models: Model note
Model Note:
Castile Insert – This Switch is the #2 and #3 for this stove
Heatilator Gas Fireplaces
EZ & EZL
EZE & EZEL
G112HAE & G112HALE
G360SE & G360SLE
G520CLE & G520CLLE
G520CRE & G520CRLE
GBCL36 – After serial # GA1549727
GBCL36E
GBCL36I
GBCR36 – After serial # GA1549727
GBCR36E
GBCR36I
GBFL36 – After serial # GA1549727
GBFL36E
GBFL36I
GBiS36E
GBST36 & GBST36L – After serial # GA1549727
GBST36E & GBST36LE
GBST36I & GBST36LI
GC112E & GC112LE
GC300FLE & GC300FLLE
GC300STE & GC300STLE
GC400SFE & GC400SFLE
GC500CLE & GC500CLLE
GC500CRE & GC500CRLE
GC720E & GC720LE
GC920E & GC920LE
BCBV36 – After serial # GA1551065
BCBV36I – After serial # GA1551065
G136E & G136LE
G340 & G340L
G340E & G340LE
G420 & G420L
G420E & G420LE
GC100AE & GC100ALE
GC100E & GC100LE
GC136 & GC136L
GC136E & GC136LE
GC200E & GC200LE
GC300E & GC300LE
GC340 & GC340L
GC340E & GC340LE
GC341 & GC341L
GC341E & GC341LE
GC361 & GC361L
GC361E & GC361LE
GC400E & GC400LE
GC420E & GC420LE
GC421E & GC421LE
GC1990E & GC1990LE
GC2000 & GC2000L
GC2000E & GC2000LE
GGBC36E & GGBC36LE
GGBC42E & GGBC42LE
GGBR36E & GGBR36LE
GGBR42E & GGBR42LE
NB3630
NB3630I – This unit has 2
NB3630M
NB3630MI
NB3933
NB3933I
NB3933M
NB3933MI
NB4236
NB4236I
NB4236M
NB4236MI
NB4842
NB4842I
NB4842M
NB4842MI
NBV3630
NBV3630I
NBV3933
NBV3933I
NBV4236
NBV4236I
NBV4842
NBV4842I
RBV4236IT & RBV4236IH
RBV4842IT & RBV4842IH
Heat N Glo Gas Fireplaces
L-COR-TVFL
PIER-DVT – HSI only
PIER-GDV – HSI only
PIER-TV & PIER-TV-DSI
PIER-TVFL
PIER-TVFL-DSI
PIER-TVFL-IPI
R-CORNERTV & R-CORNERTV-DSI
ST-42GTV – NG Pre serial # 114437 – LP Pre serial # 1662
ST-42TVFL
ST-42TVFL-DSI
ST-42TVFL-IPI
ST-DVT – HSI only
ST-GDV – HSI only
36DV88
4000GDV – NG Pre serial # 19359 – LP Pre serial # 2955
4000TV – NG Pre serial # 8029 – LP Pre serial # 6558
5000TV
6000CBV-IPI
6000DVT – Pre Sept. 1994
6000GBV
6000GBV-IPI
6000GDV – NG Pre serial # 65681 – LP Pre serial # 21249
6000TV & 6000TV-HSI – Pre serial # 38341
6000TVB
6000TVB-DSI
6000TVFL & 6000TVFL-NF
6000TV-OAK
6000TV-OAK-IPI
6000PLUS
7000TV-NF
8000CBV-IPI
8000GDV – NG pre serial # 6747 – LP Pre serial # 3881
8000TR-DSI
8000TVC
8000TVD
8000TVD-DSI
8000TVD-IPI
8000TVFL
8000TV-OAK
8000TV-OAK-IPI
BCBV36 – After serial # GA1551065
BCBV36I – After serial # GA1551065
CFX-36T
CFX-36TSP
RBV4236IT & RBV4236IH
RBV4842IT & RBV4842IH
SL-36TV
SL-36TV-DSI
SL-350TV
SL-550TV
SL-550TV-C
SL-550TV-DSI-C
SL-550TV-D
SL-550TV-IPI-C
SL-550TV-IPI-D
SL-550TV-IPI-E
SL-750TV
SL-750TV-C
SL-750TV-D
SL-750TV-IPI-C
SL-750TV-IPI-D
SL-750TV-IPI-E
SL-950TV & SL-950TV-DSI
SL-950TV-C & SL-950TV-DSI-C
SL-950TV-D
SL-950TV-IPI-C
SL-950TV-IPI-D
SL-950TV-IPI-E
Heat N Glo Gas
6100PLUS & 6100PLUS-LP
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SKU: SRV4021-383
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Part Type: Thermodiscs & Switches
