Cast iron and soapstone New door mechanism with improved ergonomics. Iconic and award winning as the Jøtul F 370 series has become, it has now been further improved and offers even more functionality. With its new, magnetic door locking mechanism, you will experience a smooth and effortless opening of the door. An integrated ‘stay-functionality’ in the door, becomes useful when placing logs on to the tinder-bed. The door will stay open until you give it a small push on the handle, and it closes. Jøtul F 377 HT Advance is a tall product made from cast iron and soapstone. It has an elegant and modern fireplace design where you can integrate hidden, heat accumulating stones. These optional stones retain heat from the fire which can be gradually released back into the room over a period of 12 hours. Heat release can be adjusted through a top air vent.