Our Burstner has additional holes in the trunking throughout the van [under the fixed bed etc etc.
These were done by the manufacturer, when I spotted a couple just after taking delivery of the van I thought they were caused by "damage".I very quickly discovered that Burstner had made them.
Apparently they give a much more even spread of the heat throughout the van rather than just relying on the few outlets that manufacturers provide.
Hi folks, i know this is a very old thread but it has helped me no end, the top holes in the ducting is deffo for condensation reduction under the seating, bed, cupboards etc...
I learnt the hard way end of last year, i live in my van and i only used oil filled heating as the gas is dearer, my van only has gas blow heating, because i didnt use this, condensation formed at the bottom of all areas where the ducting goes, so, i am now going to run the fan each day just to try to keep it free flowing :)
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