Jump to content

Webasto Warm Air Heating


Recommended Posts

The boat I have recently purchased has Webasto warm air heating. I have never used this system before and there are no user manuals aboard. That said, I have had it running and it works fine but I have been told this bit of kit is heavy on the batteries - why seeing as it is diesel fired? I have also heard that it is only heavy on the battery when being fired up but that after that there is no problem - the advice I have is to run the engine whilst starting the Webasto.

Can anybody add to this? Should I just run the engine when starting the Webasto and then carry on heating with no engine running?

Thanks

Colin

Link to comment
Share on other sites

Webastos are actually quite frugal on power, assuming it is one of the later ones with a ceramic glow pin. With a decent battery there should be no issues. The old poor starting due to low voltage only really apply to the earlier diesel heaters and even then a well serviced unit and a good battery is all you need. If you post up the model I will sort you out a PDF manual as I have most on file.

Link to comment
Share on other sites

Many thanks, I'll have a look when I'm at the boat later this week. Where will I find the identity/model number?

Is there any drain on the battery once the unit is fired up? Presumably there is in respect of the fan, which should not be much and allows for overnight running?

Thanks

Colin

Link to comment
Share on other sites

There will (should) be a plate with the model number on it and the unit should always be fitted so that the plate is visible. You may also see the year of fitting marked off on one of three or four years printed on that plate. Apart from the miniscule draw from the electronics the only thing running will be the fan after the initial start up.

Link to comment
Share on other sites

  • 4 weeks later...

They also run the glow plug on power down to burn off any residual fuel in the combustion chamber and also if you have a thermo stat and the unit is running at a lower rate, to save electricity run it at full power and open a window if you get too warm.

Link to comment
Share on other sites

They also run the glow plug on power down to burn off any residual fuel in the combustion chamber and also if you have a thermo stat and the unit is running at a lower rate, to save electricity run it at full power and open a window if you get too warm.

Only true in part, though the glow pin is activated for a few seconds both at full shutdown and as the unit enters "control idle" it is not in operation during low heat settings. Mind you the things don't like running on low heat with high sulphur red diesel, especially if it’s been fitted by an amateur with no access to a Co meter to set the correct air / fuel ratio after installation. So leaving them on high with a window open is no bad thing. If properly installed and calibrated though it shouldn’t be needed.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Sponsors

    Norfolk Broads Network is run by volunteers - You can help us run it by making a donation

×
×
  • Create New...

Important Information

For details of our Guidelines, please take a look at the Terms of Use here.