A simple metal stove design to meet your requirements. The large glazing allows a view into the firebox, which can accommodate logs with a size of 33 cm.
Wood stoves with a capacity of 3 - 6.3 kW have an external combustion air supply, the possibility of closing it (when you are not heating in the stove, so that the heated air does not escape from the room) and tertiary combustion. They can heat a room with a volume of up to 114 m3.