We covered oven stoves and their long history before, but the stone heaters from the Dutch oven stoves builder Tigchelaar are worth another picture gallery. The models are based on traditional finnish stoves.
The smaller ones (Tigchel heaters) are made up of prefabricated components, made from cement and fit together without the need for adhesives or mortar (dry stacking). Not only can you assemble your own Tigchel heater, but you can also take it with you when you move. They have a floor surface of 70 x 70 centimetres and their height is 115, 150, 185 or 210 centimetres. Similar in dimensions to a fridge, but these stoves are much heavier: 600 to 1200 kilograms.
The "portable" models do not have the heating capacity of the big boys:
"Whether or not the Tigchel heater can also be used as the main source for heating depends to a large extent on the insulation of the home. The heater can only be used as the main source for heating in homes that have been properly insulated up to the standards of modern times. For that reason it is also the ideal heater for low-energy homes. These could even be turned into zero-energy homes when using one or two cubic metres of firewood over the winter season. "
Heat exchangers can connect a Finoven to a central heating system or a Tigchel heater to a (solar) water heater.
Sunbathing in the living room: oven stoves and heat walls. Why are they gone and how do we get them back?