The following spare parts are available for the model number FSE-O40:
Burners
| Part name | Also known as |
| 29-99-602 - RG1RKD TC Low NOx Oil Burner Hi/Lo | |
| 30-05-787 - Rg1Rkd 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 |
| 1800804 - Blower Direct Drive 10/10 1ph |
Filters
| Part name | Also known as |
| 29-15-017 - Oil Filter 18489P 1/4" Bsp |
Gas Valves
| Part name | Also known as |
| 28-30-102 - Lever Action Fire Valve |
Other Heater Components
| Part name | Also known as |
| 1030162 - RS Relay 8A DPDT 40.52.8.230 | |
| 1030163 - RB Relay 16A SPDT 40.61.8.230 | |
| 1030164 - RT Overload LRE10 4-6A | |
| 1030167 - KM1-2 Contactor LC1E1210M7 5.5kW | |
| 1210179 - Flue Pressure Switch | Flue vacuum switch, Flue aps / air pressure switch, Flue diff. press. switch |
| 1215001 - Fan / Low Limit Switch (Auto Reset) | |
| 1215020 - Manual high limit thermostat | |
| 1215220 - Fan/Limit Assembly Complete - NO LONGER AVAILABLE | |
| 27-00-415 - Oil Nozzle 0.85 Gal/H X 60 - 35 Sec | |
| 27-00-418 - Oil Nozzle 1.00 Gal/H X 60 28 Sec |