Webasto Thermo To C as a Cabin Heater

CooperSmith · Jul 20, 2016

Hi All,

I have a Webasto TTC factory fitted in my 2102 Caravelle which I know it's primary function is as an engine coolant heater. But having done some research I'd like to know peoples experiences who have converted it to a cabin heater by converting it using the upgrade kits found on places like Ebay. Can it be used as a night heater without draining the leisure battery? Is it noisier than the Webasto Air Heater?

I've also come across this accessory from Websato switch called "Thermo Top C Motorcaravan Switch" which allows you to supply the heat the cabin heating system without pre-heating the engine. Anyone got any information whether this can be done to a 5.1 or not?

snowy55 · Jul 20, 2016

The engine coolant water heater runs off the engine starter battery and would use the dash blowers to distrbute the heat so it isn't really any good as a cabin heater unless it can be rewired.

MattBW · Jul 21, 2016

I did look into getting the remote to allow use but decided to get the Webasto parking heater fitted in the end.

I think this is what I was looking at but was never 100% confident it was the right kit: http://www.ebay.co.uk/itm/281946852711?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

I believe it runs from the engine battery and has a 30 minute limit for use too to avoid flattening your engine battery. You can fit a remote or telestart function to set timers or use wirelessly however I believe the auto on at 5c or below will stop working and need activating manually.