Wallas 89D Diesel Stove, Oven and Air Heater


The Wallas 87D oven and stove is truly a one of a kind combination, providing cooking via an 85DP stove and baking via an 86D oven in a single combined unit. The fan forced oven bakes your cake evenly while the stove cooks your meal efficiently. Designed for boats, slide on campers, caravans or motorhomes the 87D can be installed in most locations providing a super versatile gas free option.


Available on backorder

SKU: WAL89D Category: Tags: , , ,



The oven is a super tough, with a concealed diesel burner which heats a fan forced oven ensuring even heat distribution, automatic ignition, fast heat up and good temperature control.  Featuring a tough stainless steel inner and outer shell and elegant wooden handle, the oven compliments any interior.

The original, only and best diesel oven has the following features:

  • fast heat up fan forced oven pre-heats in a similar time to an electric oven
  • fan forcing gives very even heat distribution
  • sensible mid sized dimensions suit boats and RVs
  • inbuilt light
  • thermostatic control of the oven temperature


The stove is a 2 cooking position surface mount diesel cooker, featuring the Wallas design ceramic surface surrounded by an aluminum bezel, making it easy to clean and super tough.

  • 2 cooking positions
  • 2mm high aluminum bezel surrounding the ceramic surface to protect it


  • 1900w air heating lid with thermostatic control


  • no naked flames, all combustion is totally enclosed inside the oven and stove
  • easy to use self ignition and heat control via a simple control panel
  • diesel cookers do not add to cabin moisture like gas, all exhaust goes outside
  • no diesel smell or fumes inside the oven or cabin
  • super fuel efficient, using around 200mL of diesel per hour maximum (per oven and stove)
  • external exhaust system ensures exhaust gasses and moisture are carried outside
  • all marine grade stainless steel construction
  • hand made in Finland to exacting standards, with servicing approx. every 5 years (depending on use) is expected to last the lifetime of the vehicle/boat.
  • 2 + 1 year warranty backed by Dieselheat

Avoid gas compliance, gas safety issues, handling heavy and rusty gas bottles, excess moisture inside due to gas combustion and go all diesel.

If you prefer to build your stove and oven into a benchtop see the 85DT and 86D stove and oven which are sold separately.

Note: Marine or RV exhaust systems are sold separately. We have exhaust kits available for both marine and RV/off grid applications. For additional options, please see the Wallas Stove and Oven Accessories section on the website, or contact us directly for more information..

Wallas 85DT Installation Manual

Wallas 86D Installation Manual

Wallas 87D Special Instructions

Wallas 87D Dimensions

People often ask, “How do diesel cooktops compare with gas, and how long does it take to boil the jug?” Well, it depends on a few factors, but to keep it short the answer is it does take a little longer.

We have done some heating tests on our Wallas cooktops. We used an XC Duo, but the following applies to all Wallas diesel cooktops. Lets look at a few things. Gas is instantaneous heat, Wallas diesel cooktops require time to get started. After doing some tests we found that with 2.0L of water in a jug at 16.5 °C using gas it takes 13 minutes while using a diesel cooktop it takes 18 minutes to boil.

The drawback with diesel cooktops is that it takes 12 minutes for the cooktop to reach maximum temperature (500 °C ) making the total time to “boil the jug” 30 minutes from stove switch on. It does take some planning when using diesel; when you get up in the morning to “boil the jug” and do what nature needs you to do, just turn the cooktop on and when you come back it is up to temperature ready to put the jug on. Of course, if the stove is already on from boiling the jug, cooking brekkie right after will save that startup time.

When you are on holidays, does 10-15 minutes extra make a difference when compared to the enormous advantages of Wallas diesel cooktops over gas (safer, no condensation, cheaper to run, easier to fill, no compliance issues)? You, the customer, need to work that out for yourselves, but here at Dieselheat, we think the benefits usually speak for themselves.

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