Heatilator & Heat N Glo High Limit Switch (SRV4021-383)

Replacement high temp limit switch for Heatilator and Heat N Glo gas fireplaces. Fits the following models:

NOTES:

1. Some stoves may require more than 1 piece for complete replacement. Please order the quantity you require. Sold individually.
2. This switch is normally closed. It opens at 315 F and closes at 250 F.

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
• C500CRLE
• GC720E
• GC720LE
• GC920E
• GC920LE
• BCBV36 - After serial # GA1551065
• BCBV36I - After serial # GA1551065
• G136E & G136LE
• G340
• G340L
• G340E
• G340LE
• G420
• G420L
• G420E
• G420LE
• GC100AE
• C100ALE
• 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 requires qty 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

HHT part # SRV4021-383
Replaces old part numbers 4021-383 & 066-531
OEM HHT part

May fit other models, please check your owner’s manual for part number compatibility.