The following spare parts are available for the model number (HCH) 150:
Burners
Connectors
| Part name | Also known as |
| 30-05-720 - FUEL LINE | |
| 33-51-207 - 5 x 90 Degree Condensate Tee S/S 430 S/W (125mm) |
Controls
| Part name | Also known as |
| 29-01-211 - AMBIRAD SMARTCOM | |
| 30-01-156 - G5/10/20 530 Se Control Box | G5/10/20 530 Se controller, G5/10/20 530 Se ignition controller, G5/10/20 530 Se electronic controller, G5/10/20 530 Se auto ignition controller, G5/10/20 530 Se main burner relay |
| 6147 - Time switch 718842050 (Mk 1 Only) | |
| R13001149 - GS5 Control Box 525 SE | GS5 controller 525 SE, GS5 ignition controller 525 SE, GS5 electronic controller 525 SE, GS5 auto ignition controller 525 SE, GS5 main burner relay 525 SE |
Dampers
| Part name | Also known as |
| 30-07-204 - G5 Air Damper | |
| 3009629 - GS5 Air Damper | |
| RI3000878 - G5 Air Flap |
Electrical Components
| Part name | Also known as |
| 8954 - 6.3A Fuse 20Mm |
Fans & Motors Centrifugal
| Part name | Also known as |
| 8792 - Direct drive Centrifugal Fan Nicotra DDC 270-270 (02 26012 100150) |
Filters
| Part name | Also known as |
| 8985 - Fuel Filter 3/8" |
Gas Valves
| Part name | Also known as |
| 30-02-279 - G5/10/20 Solenoid Coil | |
| 3970569 - GS5 On/Off Gas Train Only (Includes Valve & Pipe) |
Manifold
| Part name | Also known as |
| 3008636 - G5 Flange/Manifold |