The Autoterm range (formerly known as Planar) has established itself as a leading provider of high-quality yet affordable diesel heating solutions for the marine industry. These heaters are engineered to withstand extreme sub-zero temperatures, making them exceptionally reliable for year-round cruising and narrowboat habitation.
Autoterm Air Heaters: Robust Forced-Air Solutions
Autoterm’s air heater lineup—including the 2D (2kW), 4D (4kW), and 9D (8kW) models—provides rapid, dry heat for vessels of all sizes. These units are prized for their low fuel consumption and minimal noise levels, featuring a brushless motor and a “super quiet” fuel pump as standard.
- Autoterm 2D: Ideal for small to medium cabins, offering efficient heating with a compact footprint.
- Autoterm 4D: A versatile choice for larger saloon areas or multi-cabin narrowboats.
- Autoterm 9D: Designed for significant commercial or large leisure vessels requiring high-volume air movement.
Each heater is fully EN-certified and can be paired with advanced controllers like the Autoterm Comfort Controller, which features a user-friendly digital interface and programmable timers. For remote management, the QSTART modem allows users to activate their heating via a smartphone app—perfect for pre-warming a boat before arrival.
Autoterm Liquid Heaters: Hydronic Warmth
For vessels utilising radiator systems or matrix blowers, the Autoterm Flow series (Flow 5 and Flow 14) provides powerful hydronic heating. These liquid heaters circulate warm coolant through a closed-loop system, which can also be used to pre-heat an engine or provide domestic hot water via a calorifier. The Flow 14 is specifically designed for larger marine applications, ensuring consistent warmth across extensive pipework runs.
Expertise and OFTEC-Trained Installation
Proper installation of a diesel heater is critical for both longevity and safety, particularly regarding exhaust routing and fuel line integrity. At Marine Heating Solutions, our OFTEC-trained engineers specialise in Autoterm diesel heater installations, ensuring every system meets Boat Safety Scheme (BSS) standards.
We provide a Boat Diesel & Oil Appliance Certificate with every installation, providing documented proof of a safe and compliant setup. For official technical documentation and software updates, you can access the Autoterm Global Support Center or consult the OFTEC guide for liquid fuel appliances.
For quotes and bookings, call or email us here.
Autoterm Diesel Liquid Heaters
Autoterm Diesel Liquid Heaters are designed to provide efficient and reliable warmth for various applications, including vehicles and boats. Utilising diesel fuel as a source, these heaters operate by circulating warm liquid through a closed system, ensuring even temperature distribution and quick heat-up times. Autoterm diesel heaters are favoured for their compact design, low energy consumption, and ability to function effectively in extreme weather conditions. With features such as adjustable thermostats and quiet operation, these heaters enhance comfort while minimising environmental impact.
Autoterm Diesel Air Heaters
Autoterm Diesel Air Heaters are innovative heating solutions designed to provide effective and efficient warmth for boats and other vehicles. Available in various models, these heaters utilise diesel fuel to generate warm air, ensuring rapid heat distribution and optimal comfort even in harsh weather conditions. Their compact design contributes to low energy consumption while minimising noise levels. With features such as adjustable thermostats and advanced controllers, Autoterm Diesel Heaters not only enhance user comfort but also prioritise environmental responsibility.
Autoterm Controllers
Autoterm controllers offer advanced options for managing the heating systems of your boat with precision and convenience. Designed for seamless integration with Autoterm diesel heaters, these controllers feature user-friendly interfaces and programmable settings that allow for easy temperature adjustments and monitoring.
For quotes and bookings, call or email us here.







