Replacement fan / blower kit with timer control for HHT gas fireplaces. Used in natural gas (NG) and propane (LP) units. Includes blower, blower mount, timer control (4021-708), power cord, hardware and instructions. Fits the following models:

Heatilator Gas Fireplaces:

• GNBC30 & GNBC30L & S.I.T
• GNBC30E & GNBC30LE
• GNDC30 & GNDC30L & S.I.T
• GNDC30E & GNDC30LE
• GNDC33E & GNDC33LE
• GNDH30 & GNDH30L & S.I.T (Can not user timer control, must use rheostat (BC10) & metal junction box (22130)
• GNDH30E & GNDH30LE (Can not user timer control, must use rheostat (BC10) & metal junction box (22130)
• GNBC30 & GNBC30L & S.I.T
• GNBC30E & GNBC30LE
• GNDC30 & GNDC30L & S.I.T
• GNDC30E & GNDC30LE
• GNDC33E & GNDC33LE
• GNDH30 & GNDH30L & S.I.T (Can not user timer control, must use rheostat (BC10) & metal junction box (22130)
• GNDH30E & GNDH30LE (Can not user timer control, must use rheostat (BC10) & metal junction box (22130)
• NB3630
• NBV3630
• NBV3630I
• NBV3630I-B
• NDV3630
• NDV3630I
• NDV3630I-B
• NEVO3630I

Heatilator part # GFK21B
OEM HHT part

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