A stove with outside air supply makes it possibe to get air supplied from outside. This prevents the need for a permanent ventilation in the room where the stove is installed.
The following Morsø stoves can be fitted with Outside Air Supply:
2140, 3142, 3440.
5660, 6100-series, 6800-series, 7300/7400-series, 7800/7900-series, 8100-series, 8229-series, 8800-series.