The Tigchel heaters (as well as the Finovens) produce a great amount of radiant heat. This will give a warm floor, warm walls and a warm ceiling all around. The steady spread of radiant heat from the source (a Tigchel heater) in 12 hours across the surrounding surfaces is illustrated in this diagram. Read more about this subject in:

• Burning Questions

As well as the big advantage of using the "recycling fuel", NIBE's choice in favour of the Finoven was inspired by the health effects from the indoor climate.
That is because radiant heat gives no dust circulation, no bad odours and no sense of 'dry air'. Radiant heat is particularly helpful for people suffering from respiratory disorders (CNSLD).

Heat source and radiant heat.

Thanks to its modest but lengthy heating capacity, the Tigchel heater is able to heat living areas up to approximately 250 cubic metres (depending on the degree of insulation; under favourable, adjusted conditions it can be used as the main source of heating).

With the similar kind of heating capacity, the Finoven can be used in living areas of 500 cubic metres and more. If the insulation is in accordance with the selected Finoven model, it may also serve as the main source of heating.
For more information on this subject, go to

• The furnace

More information

• Heat exchanger Tigchel-heater
• Heat exchanger Finoven