The Wallas Spartan is a state-of-the-art, room-sealed twin-outlet diesel heater that offers advanced climate control for modern vessels. Engineered for high efficiency and near-silent operation, it represents one of the most technologically advanced heating solutions currently available for boat owners.
Wallas Spartan: High-Efficiency Twin-Outlet Heating
The Wallas Spartan delivers a powerful 4.5 kW of heating capacity while maintaining a remarkably low startup voltage requirement of just 9.6 volts. This makes it an exceptionally reliable choice for vessels with variable battery levels. Utilising Wallas‘s proprietary Greenboost burner technology, the Spartan ensures a clean, efficient burn with significantly reduced emissions, maintaining clean air for both the environment and your cabin. Standard features include built-in Bluetooth and WiFi, allowing users to control the heater and monitor performance via the Wallas App. For precise temperature regulation, the unit can be paired with an optional detachable Bluetooth thermostat beacon. Safety is a priority, with well-insulated units and advanced exhaust systems that maintain low surface temperatures.
Expert Installation and BSS Safety
Our OFTEC-trained engineers specialise in Wallas Spartan diesel heater installations, ensuring that all services are performed to the highest safety standards and Boat Safety Scheme (BSS) compliance. To maintain performance, these high-tech units require precise calibration of the fuel system and exhaust routing. For further technical support and safety specifications, visit the Wallas Official Support Portal and the OFTEC guide for liquid fuel appliances.
Free Installation Offer Winter 2025/2026
We are offering free installation for all diesel heater narrowboat kits between the 15th of November 2025 and the 15th of February 2026. See individual appliance listing for boat stove kit prices. Email us for details.
Specifications:
| Low startup voltage from 9,6 Volts |
| Optional detachable Bluetooth thermostat beacon |
| Heating Power up to 4.5 kW |
| Fuel Consumption 0.16 – 0.45 liters |
| Greenboost burner provides a more efficient and clean burn |
| Bluetooth / Wifi connection |
| Wallas App controllable by Wifi and Bluetooth network |
| Floor and wall installation options |
| Very quiet running with additional air silencers available. |
Wallas Viking Diesel Heater Narrowboat Kit:
Includes Wallas Viking Diesel Boat Heater and Control Panel, Fuel Line Kit, 1 Metre Twin Wall Exhaust, Through-Hull Fitting, and Safety Certificate.
£2995.00 including free installation Winter 25/26
Wallas Spartan Diesel Heater Price:
£2598.00
Additional parts and optional extras:
- Wallas Wireless Thermostat Beacon – POA
- Wallas Twin Wall Exhaust – £54.00 per metre
- Wallas Insulated Through-Hull Fitting – £134.00
- Wallas Solenoid Valve – £218.00
- Wallas Duct Silencer – POA
- Ducting and Vents – POA
- Fuel Line Kit (Marine Fuel Filter, Valves, Copper Pipe, Clips, Fittings) – £225.00
- Diesel Appliance Safety Certificate – £59.00