Review of Heta Inspire 45 stove
We previously had an x40 cube and it was much cheaper and better in many ways. The heta is easier to use and the glass always stays clean however it has some very bad characteristics. The most annoying of which is the amount of smoke it releases into the room when you open the door to add fuel. Overall given the choice i would go back to the cube as it was hotter and did not stink the house out when the door was opened.
Stove expert replied: As withy all ecodesign stoves, the combustion chamber is fairly air tight, it is recommended to open the door slightly to reverse the pressure and allow the smoke/gases to go up the chimney.