Blownair piping underneath van!!

Harlyn
Harlyn Forum Participant Posts: 2
edited February 2012 in Caravans #1

Our blownair heating pipe travels approx. 3.5 mtrs. underneath the van to rise through floor in van to the bathroom. We can only get cool air out of it, because  the wind/draught under van cools the pipe down. Yes we have adjusted
the flap on the back of the heater! Any insulation ideas, PLEASE ??