1200 D


1100-2200 W

3410 – 7500 BTU

Seamless Design Adds a Touch of Luxury to Your Mobile Cooking Space

The key improvement in the new model is a significantly faster cooking time. With a more powerful burner and quicker ignition, the 1200D reduces 1-liter boiling time from 15 to just 10 minutes, ensuring a cooking experience on par with a home kitchen.

Designed to complement modern boat aesthetics, the full ceramic, subtly tapered surface adds a touch of elegance to your boat’s interior. Easy to clean and heat-efficient, it manages gases and odors effectively, reflecting heat precisely to the pot or pan below.

The 1200D boasts a more compact footprint, freeing up valuable space on your boat’s table for work or other activities. The reduced casing size, achieved through lower surface temperatures, allows versatile installation, even in tight spaces.

Utilizing the same advanced circuitry as the Spartan and Viking series heaters, the 1200D enables remote updates, diagnostic troubleshooting, reading fault codes, and addressing device-specific issues. Continuous parameter development ensures compatibility with evolving biofuel characteristics, providing reliable performance globally on land and sea.

Faster Boiling
Stronger 2kW burner is lifted closer to ceramic which makes it boil water in 10 minutes
Air cooled frame
Air cooled frame enables fridge installation nearby the stove unit.
Advanced Control Panel
Gives You All the Info You Need With One Glance
Click Here
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Cleaner Burning

Updated software optimizes fuel and electricity consumption

Calibrated to burn renewable fossil free diesel (e.g. HVO)

Larger burner burns fuel slower resulting in ultra low CO2 and NOX emissions

Extensively tested with Neste

Improved burner efficiency for more power

The Greenboost burner burns renewable fossil-free diesel cleanly and energy-efficiently, in addition to fossil-based diesel.

Combustion air is taken from inside the boat and exhaust gas is safely vented outside keeping the indoor air clean and odorless.

The exhaust gas also carries the moisture in the indoor air out keeping the air dry.

Fully enclosed laminar burning process ensures a quiet sound level and dries the indoor air.

Perfect for environmentally minded boaters and campers.

High performance 2,2kW burner decreases boiling time to 10 minutes.

 Air cooled frame enables fridge installation nearby the stove unit.

Low installation depth leaves more space below the unit.

Brushless blower motors have a very long life-cycle, supporting reliably long service intervals.

Feeding fuel directly from the main tank of the vessel saves space and eliminates the need for a separate tank.

Durable Finnish design and manufacturing keep your Wallas running through tough weather conditions.

State-of-the-art flat facet ground surface.

Excellent for small spaces. Leaves space for countertop.


Laminar combustion is a safe burning process with no exposed flame.

Unlike propane stoves, diesel stoves do not require gas inspections.

High Altitude Mode adjusts the combustion when traveling in high altitudes.






Fuel: Diesel, HVO renewable diesel
Power: 1000-2200W (3,410-7,500BTU)
Operating Voltage: 12 V
Fuel Consumption: 0,1-0,22 l/h (3,38-7,4oz/h)
Electricity Consumption: 0,37 – 0,55 A
Length: 460 mm (18,11″)
Width: 210 mm (8,26″)
Height: 120 mm 4,72″)
Weight: 6,3 kg (13.9 lbs)
Mounting: Flush mount
Colors: Black


Boats, Camper vans, trailers, cottages, tiny houses


Advanced Control Panel, wire 5 m (16.4 ft)
Fuel line 4 m (13 ft)
Power cable with connector 4 m (13 ft)
Accessory bag including essential clamps and screws


Stainless Steel, High-Grade Aluminum, Other Corrosion-Resistant Materials

Technical values are measured in a reference measurement wall, which is constructed to represent a typical boat installation. Values have been measured with maximum length of ducting, exhaust pipe, fuel line, and power cord. The figures allow for 10 % reserve – yours may vary.

Wallas diesel stoves and heaters are designed to run with standard road and boat diesel, as well as renewable fossil free diesel. Check with your distributor for further details on best options for your needs.

Accessories in black are included in the standard package. Accessories in blue are additional. 

Reach out to your nearest distributor to determine the best solution for your needs.