The Autoterm 9D is the most powerful diesel air heater in the Autoterm range, delivering a massive 8kW of heat output. It is specifically designed for large vessels, widebeams, and commercial boats up to 65ft (19m) in length, or for applications where rapid heating of large, open volumes is required.
Autoterm 9D: High-Capacity Air Heating
Engineered for reliability in extreme conditions, the 9D provides a high-volume air throughput, ensuring that heat reaches the furthest corners of large cabins or multiple rooms. Despite its industrial-level power, it maintains the core benefits of the Autoterm line: efficiency and durability.
Key features of the Autoterm 9D include:
- 8kW Maximum Output: Capable of transforming the climate of a large barge or workboat quickly.
- Quiet Intake: Comes standard with a silencer air intake to dampen the sound of high-volume air movement.
- Robust Hardware: The basic kit includes a heavy-duty fuel pump, an integral fuse box for safety, and the PU-5 controller (upgradable to the Comfort Controller or Smartphone Modem).
- Versatile Ducting: Supports 100mm or 90mm ducting systems to handle the significant airflow.
Professional OFTEC-Trained Installation
Installing an 8kW diesel heater requires careful engineering to manage the high volume of combustion air and the substantial heat generated by the exhaust. At Marine Heating Solutions, our engineers are OFTEC-trained and specialise in Autoterm 9D marine installations. We ensure that all components—from the fuel dip tube to the 38mm marine exhaust—are fitted to meet the stringent Boat Safety Scheme (BSS) standards.
We provide a Boat Diesel & Oil Appliance Certificate upon completion, which is essential for insurance and regulatory compliance. For technical documentation and maintenance guides, you can visit the official Autoterm 9D support portal or consult OFTEC’s liquid fuel safety guidelines.
Basic Kit Includes:
| Autoterm 9D Boat Heater – 8kW |
| Silencer air intake |
| Fuel pump with mounting bracket |
| 600mm of exhaust tube |
| 1 fuel dip fuel tube and fuel line |
| 1 power cable with integral fuse box |
| 1 control panel cable |
| 1 fuel pump power cable |
| A selection of nuts and bolts. |
| Basic PU-5 Controller |
Autoterm 9D Diesel Air Heater Price:
£859.00
Optional Extras:
- Autoterm PU-27 OLED Control panel
- Autoterm Comfort Controller
- Autoterm Modem
- Inlet/Outlet Pipe Adapter for AUTOTERM AIR 9D 100mm-90mm
- Air Heater Ducting 90mm
- Thermoduct 90mm Air Ducting Insulation
- Sealed Marine Exhaust Pipe
- 38mm Exhaust Skin Fitting / Hull Fitting
- Marine Fuel Filter With Stop Tap