record you can but you will end up paying more for your flue than your stove but still cheaper than a masonry chimney. Once you pass into a wall or ceiling you need to run in insulated flue pipe at around E120 per metre then depending on where you exit if near the ridge then it needs rise 600mm above the ridge. if your coming out away from the ridge or near the eaves you need to have 2.3m distance when you measure from the top of the flue at 90 degrees into the roof tiles.