The following spare parts are available for the model number FSE-O300:
Belts & Pulleys
| Part name | Also known as |
| 1801157 - Pulley Taper Bush 1210-28 | |
| 1801162 - Pulley Taper Bush 2012-30 | |
| 1801543 - Pulley B236 | |
| 1801545 - Variable Pulley 136 | |
| SPB1800 - Wedgebelt SPB1800 |
Burners
| Part name | Also known as |
| 29-99-581 - Rl32 Low Nox Oil Burner Hi/Lo | |
| 30-03-817 - Rl32 Burner Gasket |
Controls
| Part name | Also known as |
| B-SC3ML-MZR - Smartcom Multizone Control Panel |
Electrical Components
| Part name | Also known as |
| 1030165 - F1 Fuse 5x20T 6.30A |
Fan Blowers
| Part name | Also known as |
| 1800357 - Blower ADH400L |
Fans & Motors Centrifugal
| Part name | Also known as |
| 1810344 - Fan Motor 3.0kW 3ph |
Filters
| Part name | Also known as |
| 29-15-020 - Fuel Filter 1/2" |
Gas Valves
| Part name | Also known as |
| 28-30-102 - Lever Action Fire Valve |