Replacement Fenwall DSI control module for Heat N Glo fireplaces. Fits the following models:

NOTES:

1. This control module is for Fenwall DSI units only, does not work with RAM DSI systems.
2. For use in DSI fireplaces only, does not work with standing pilot, HSI or IPI units. Used for LP and NG units.

Heat N Glo Gas Fireplaces:

• BAY-INSERT
• BAY-GDV-DSI
• L-CORNERTV-DSI
• L-COR-TR-DSI
• PIER-TR
• PIER-TV-DSI
• R-CORNERTV-DSI
• R-COR-TR-DSI
• ST-38GTV-DSI - Fenwall only
• ST-42FL-DSI
• ST-TR-DSI
• 5000GDV
• 6000ARCH-DSI - Fenwall only
• 6000DVTFL-DSI - Fenwall only
• 6000GDVFL
• 6000GDVFL-NF
• 6000TR-NF-DSI - Fenwall only
• 6000TVFL 
• 6000TVFL-NF - Fenwall only
• 6000XL
• 8000DVTFL-DSI
• 8000GDVFL-DSI
• 8000TR-DSI - Fenwall only
• 8000TVFL-DSI - Fenwall only
• GRAND-50-B
• SL-32-DSI - Fenwall only
• SL-36-DSI - Fenwall only
• SL-36GDV-DSI - Fenwall only
• SL-42-DSI
• SL-42DVT-DSI - Fenwall only
• SL-TVBLD - Fenwall only
• 5000GDV-CDA
• 5000GDV-DSI
• 5000GDV-HK
• 5000GDV-HSI
• 5000GDV-NF
• 5000GDVC
• 5000GDVCLP
• 5000GDVD
• 5000GDVLP
• 5000GDVLP-CDA
• 5000GDVLP-DSI
• 5000GDVLP-HSI
• 5000GDVMH
• 6000ARCHLP-DSI
• 6000DVTFLLP-DSI
• 6000GDVFL-DSI
• 6000GDVFL-NF
• 6000GDVFLLP
• 6000GDVFLLP-DSI
• 6000GDVFLLP-NF
• 6000TR-HK
• 6000TR-NF
• 6000TRLP-NF
• 6000TRLP-NF-DSI
• 6000TVFL-DSI
• 6000TVFL-NF-DSI
• 6000TVFLLP
• 6000TVFLLP-DSI
• 6000TVFLLP-NF
• 6000XL-DSI
• 6000XLLP
• 6000XLLP-DSI
• 6DVTFLLP-NF-DSI
• 6TVFLLP-NF-DSI
• 8000DVTFL
• 8000DVTFLLP
• 8000DVTFLLP-DSI
• 8000GDVFL
• 8000GDVFLLP
• 8000GDVFLLP-DSI
• 8000TR
• 8000TRLP
• 8000TVFL
• 8000TVFLLP
• 8000TVFLLP-DSI
• BAY-GDVLP-DSI
• BAY-INSERT-DSI
• BAY-INSERTLP
• GRAND-50LP
• GRAND-50LP-B
• L-COR-TR
• L-COR-TRLP
• L-COR-TRLP-DSI
• L-CORNERTV
• L-CORNERTV-HSI
• L-CORNERTVLP
• PIER-TR-DSI
• PIER-TRLP
• PIER-TRLP-DSI
• PIER-TV
• PIER-TV-HSI
• PIER-TVLP
• PIER-TVLP-DSI
• PIER-TVLP-HSI
• R-COR-TR
• R-COR-TRLP
• R-COR-TRLP-DSI
• R-CORNERTV
• R-CORNERTV-HSI
• R-CORNERTVLP
• SL-32
• SL-32-CDN
• SL-32LP
• SL-32LP-CDN
• SL-32LP-DSI
• SL-36
• SL-36-CDN
• SL-36-PB
• SL-36GDV
• SL-36GDVLP
• SL-36GDVLP-DSI
• SL-36LP
• SL-36LP-DSI
• SL-42
• SL-42DVT
• SL-42DVTLP
• SL-42DVTLP-DSI
• SL-42LP
• SL-42LP-DSI
• SL-TVBLD-DSI
• SL-TVBLDLP
• SL-TVBLDLP-DSI
• ST-38GTV
• ST-38GTVLP
• ST-38GTVLP-DSI
• ST-42FL
• ST-42FLLP
• ST-42FLLP-DSI
• ST-TR
• ST-TRLP
• ST-TRLP-DSI

Heat N Glo part # 398-592
Replaces old part number SRV420–592
OEM HHT part.

May fit other models. Please check your owners manual for part numbers.