Replacement gray control module for Heat N Glo gas fireplaces. Fits the following models:

Heat N Glo Gas Fireplaces:

• 350TRSI-AUF
• 350TRSILP-AUF
• 350TSI-P-CEM
• 350X-AU
• 550TRSI-AUF
• 550TRSILP-AUF
• 550X-AU
• 6KX-AU
• 6TRSI-AUD
• 6TRSILP-AUD
• 6X-AU
• B36S-AU
• B41L-AU
• COSMO-I30AU
• I25X-N-AU
• I30X-N-AU
• I30X-P-AU
• I35X-N-AU
• MEZZO-1000-AU
• MEZZO-1300-AU
• MEZZO-1300ST-AU
• MEZZO-1600-AU
• MEZZO1000-AUB
• MEZZO1300-AUB
• MEZZO1300ST-AUB
• MEZZO1600-AUB
• RED40-N-AU
• RED40ST-N-AU
• SL350TRSI-N-CE
• SL350TRSI-PB-CE
• SLR-X-AU
• SLR-X-AU-L
• SOHO-B-CEB
• SOHO-N-AUB
• SOHO-N-CEB
• SOHO-P-CEB
• ST-HVBI-AUB
• ST-HVBILP-AUB
• SUPREME-N-I30AU
• SUPREME-P-I30AU
• VRT-BK-N-AUB
• VRT-BZ-B-CEB
• VRT-BZ-N-AUB
• VRT-BZ-N-CEB
• VRT-BZ-P-AUB
• VRT-BZ-P-CEB
• VRT-GR-B-CEB
• VRT-GR-N-CEB
• VRT-GR-P-CEB
• VRT-GY-B-CEB
• VRT-GY-N-AUB
• VRT-GY-N-CEB
• VRT-GY-P-AUB
• VRT-GY-P-CEB
• XLR-N-AU
• XLR-N-CE
• XLR-PB-AU
• XLR-PB-CE
• XLR-PLUS-N-AU
• XLR-PLUS-N-AUB
• XLR-PLUS-PB-AU
• XLR-PLUS-PB-AUB

Heat N Glo part # 2166-306
OEM HHT part

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