Trad with reverse layout

While browsing the internet for narrowboats for sale we came across something that we thought we wouldn't like.  The boat was a trad and it had a reverse layout.  I wouldn't think this would be a good thing for Winter.  If you have the inside of the boat warmed by the solid fuel stove or radiators and had the rear hatch open to stand there when cruising, surely all the warm air would escape out the door.  Perhaps lovely for the steerer but not very fuel efficient.


This layout diagram is from Boat Finder Brokerage