The Wilmont principle

The Wilmont stove is a uniquely designed wood stove with special buffer chambers that house the wood and feed it automatically. The stove itself works on the principle of a wood gasifier, with a main combustion chamber as well as an afterburner chamber: the swirl chamber. This ensures optimum combustion of the flame.

Main combustion chamber

The main combustion chamber is located behind the round main door on the left. This has the features of a normal wood stove, such as a grate, ash drawer, and door with pane. It houses the burning wood and charcoal. However, the flame does not escape upwards but to the side, entering the swirl chamber there.


The natural chimney draft causes the flame to be drawn into the swirl chamber to the right of the main combustion chamber. Here, the flue gases are post-combusted at a very high temperature of 1000 to 1200 degrees Celsius, with the addition of extra air. This afterburning ensures very high combustion efficiency and very low carbon monoxide emissions. It is therefore a very clean stove


The feeding of logs into the fire occurs naturally. Without regulation, without sensitive technology or moving parts and, last but not least, without you having to do anything once you have filled the wood tubes. This process continues until the entire tower has burned up. This continuous supply of wood at the right time ensures a constant burning process. This contributes to high efficiency and comfortable heat.


The flame burns almost completely in the swirl chamber and leaves the swirl chamber as hot combustion gases (also: flue gases). The hot gases pass through a heat exchanger to the chimney pipe. The heat exchanger extracts most of the heat from the combustion gases. It is built partly at the rear and partly above the swirl chamber and can be recognised by the robust cooling ribs.


On the main combustion chamber are three buffer chambers. These give the Wilmont wood stove some of its unique appearance. Via lids at the top, you fill the buffer tubes with logs. Inside each tube is a tower of logs. The bottom blocks are in the fire, on top of the charcoal, and burn slowly. As the burn progresses, the blocks weaken. They crumble and break apart, causing the tower of logs in the buffer tube to sink further and further.


The cooling fins of the heat exchanger ensure that much of the heat is delivered to the room in which the stove is installed via convection. Convection means that air flows between the cooling fins, heats up and rises. This rising air in turn sucks in air, causing a vertical ‘wind’ to cool the stove and heat the air in the room. Heat is also transferred to the room via radiation. The Wilmont wood stove is thus not a pure radiant stove, but neither is it a pure convection stove. It uses both principles to transfer heat to the room.

A special history

Wilmont Woodstoves has an extraordinary history. In 2004, machine builder Martijn van Rossum bought an old, dilapidated farmhouse in Goch, Germany. With little money, but with a lot of good sense, he started refurbishing the house.

Also see the Bivak – Terrace stove

The Wilmont BIVAK is an attractive, wood-fired patio stove with a beautifully unique flame pattern and wonderful radiant heat.
The stove is of high quality, made of stainless steel so the stove will not rust or leave rust stains on the terrace.

Thanks to the innovative combustion system, combustion is almost complete, the flue gases are clean and transparent and do not stink. So you can have a cosy fire on your terrace without putting yourself and your neighbours in the smoke.

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