Is this Webasto air ducting Y branch suitable for heating hoses with internal diameter Ø 80 and Ø 60mm?

Good. Do you also sell 80x60x80mm?

Unfortunately not. We only have  80/55/80 available from stock. 80MM ID ducting was discontinued within specification of heaters from Webasto a number of years ago. As such the very common and easily purchase ducting adapters are 90mm id currently. What heater model are you installing?

Thank you

Thank you. I have an old Mikumi diesel heater, so the 80mm ducting are alredy in place. My plan is to combine it with an Isotherm Defroster (10kW, heat from motor cooling system) thats why the 60mm (4x60mm outlets)

if the 80mm duct is not very long it may be more cost effective to use 90-80mm converter.

https://www.butlertechnik.com/item/Webasto/or-Eberspacher-Ducting-Reducer-90mm-80mm-89075A-1320185A/58Z

Then you could use 90/60/90

https://www.butlertechnik.com/item/Webasto/Duct-Y-Branch-90-x-60-x-90mm-9009263B-1320707A/59P

okay, so you'd also need a couple of short 100mm joiner lengths of 90mm ducting - we could find an off cut in our warehouse for this purpose at no charge if required

just an idea

Thank you very much. I will have a look at it in my boat and comes back.

Hi I have very limited space available, so I have now ordered your 80/55/80 ducting via my Ebay account. Thanks for all help :-)

Thank you for your purchase.

Compliments of the Season

Butler Technik