Webasto Question

[Frayed Knot]

I’m considering replacing my now quite elderly Airtop Evo 3900 with the more powerful 5500 model.
Can anyone tell me if I need to buy a complete kit or would a new heater-only option be compatible with the rest of the installation - wiring harnesses in particular? From what I can gather, both models use the same fuel pump & I can’t see any reason to change the controller, exhaust etc.

 

[pvb]

For a definitive answer, why not ask someone like Butler Technik? https://www.butlertechnik.com/webasto-m2

 

[Frayed Knot]

For a definitive answer, why not ask someone like Butler Technik? https://www.butlertechnik.com/webasto-m2

Thanks, yes that’s probably the most sensible thing to do but it would be a bit of a cheek as I’ll almost certainly buy from Heaters4u

 

[pvb]

Thanks, yes that’s probably the most sensible thing to do but it would be a bit of a cheek as I’ll almost certainly buy from Heaters4u

So ask Heaters4u.