Modernisation devices

Stove upgrade sets by BRUNNER are intended for replacing old stove inserts by supplementary heating systems to support a future heating system. The models B7 and B8 are completely maintenance- free and do not have to be cleaned. They are also highly recommended for new stoves with a boiler power rating of 33-40%. The boiler type B7 has a rated heating load of 6kW and the B8 can provide a maximum of 8kW.