Beneteau Oceanis 343 - Webasto heater ducting

Feb 25, 2024
2
Beneteau 343 Tuborghavn
Hi folks! I am a relatively new owner of a 2008 2-cabin version and have decided that Copenhagen is far too cold to live without a heater. I bought a Webasto Air Top Evo 55 diesel heater and have a question regarding ducting. My proposal is to run as shown (diagram is from owners manual for air-con ducting) but I would be running heating ducting (yellow) Ø90mm tapering to Ø60mm without outlets (red) in the for/aft cabin, head and saloon.

I found a Youtube video (in Turkish) with an installation which I will probably replicate unless someone with experience advises otherwise...

It seems the only other option is to run through the head along the starboard side, but getting an outlet under the saloon seat involves drilling through a chunk of fibreglass which makes me nervous!
 

Attachments

Feb 25, 2024
2
Beneteau 343 Tuborghavn
I also considered adding a fuel pickup from the HDPE diesel tank, but haven't found much info on that so will probably run off a separate 10L plastic tank (similar to the video).