robtheplod Posted September 12, 2019 Report Share Posted September 12, 2019 We've got a new boat and its come with a Webasto heating system. I've tried to find the manual for this but not having much luck as yet. The controls are easy and the heating aspect isn't an issue (and works well), I'm just trying to find out if this system can supply hot water without the heating (as the engine does) ? Do I need to look at alternatives such as immersion etc? Thanks!! Link to comment Share on other sites More sharing options...
David Mack Posted September 12, 2019 Report Share Posted September 12, 2019 Is there a valve on the pipe leading to the radiators, which you can close? Link to comment Share on other sites More sharing options...
Chewbacka Posted September 12, 2019 Report Share Posted September 12, 2019 (edited) The Webasto is just a water heater, it heats water, where the hot water goes depends on the design of your pipe work. Normally I would expect a valve that controls flow to the radiators. There might be a second valve that restricts the flow through the calorifier when the radiators are on, to balancethe flow, but there probably isn’t. added - follow the pipe from the out port of the boiler and see if there is a tee with a valve on the leg going off to the radiators. Edited September 12, 2019 by Chewbacka Link to comment Share on other sites More sharing options...
Detling Posted September 12, 2019 Report Share Posted September 12, 2019 No, or it won't do so for long. Webasto's like to be worked hard, so need the full load (calorifier and radiators) otherwise they partially shut down and cycle on and off. This leads to a build up of soot, carbon on the burner gauze, the unsooted parts then overheat and the gauze will crack and break. They are not cheap to replace unfortunately. Shutting off the radiators also will lead to short cycling and the dreaded soot, don't ask how I found out but several good nights out meal and entertainment had to go to the repair man. Link to comment Share on other sites More sharing options...
Tonka Posted September 12, 2019 Report Share Posted September 12, 2019 Tried to PM you some manuals but couldn't do it as they are pdf. if you pm me an email address we could do it that way Link to comment Share on other sites More sharing options...
Chewbacka Posted September 12, 2019 Report Share Posted September 12, 2019 This is the Webasto marine installation manual for a later model of boiler to yours. Page 15 shows a suggested plumbing arrangement. It may help you when tracing pipes. https://www.melloronline.co.uk/product_uploads/15406744942.pdf Link to comment Share on other sites More sharing options...
robtheplod Posted September 12, 2019 Author Report Share Posted September 12, 2019 thanks everyone, will have a close look at the pipework! Link to comment Share on other sites More sharing options...
mrsmelly Posted September 13, 2019 Report Share Posted September 13, 2019 21 hours ago, robtheplod said: thanks everyone, will have a close look at the pipework! If you need it servicing or repairing contact me, I use a bloke who is very fast, very good and very cheap, a rare bloke indeed in this day and age. You do not need to get ripped off. 1 Link to comment Share on other sites More sharing options...
robtheplod Posted September 15, 2019 Author Report Share Posted September 15, 2019 On 13/09/2019 at 14:55, mrsmelly said: If you need it servicing or repairing contact me, I use a bloke who is very fast, very good and very cheap, a rare bloke indeed in this day and age. You do not need to get ripped off. thanks for this I will keep you in mind! where is the chap based? Link to comment Share on other sites More sharing options...
mrsmelly Posted September 15, 2019 Report Share Posted September 15, 2019 2 hours ago, robtheplod said: thanks for this I will keep you in mind! where is the chap based? Northants, he does it by post. Link to comment Share on other sites More sharing options...
bramley Posted September 15, 2019 Report Share Posted September 15, 2019 1 hour ago, mrsmelly said: Northants, he does it by post. Does he do others ? Mikuni? Link to comment Share on other sites More sharing options...
mrsmelly Posted September 15, 2019 Report Share Posted September 15, 2019 3 minutes ago, bramley said: Does he do others ? Mikuni? No he is fully occupied doing and supplying webasto. 1 Link to comment Share on other sites More sharing options...
Tonka Posted September 15, 2019 Report Share Posted September 15, 2019 Loads of manuals here https://www.butlertechnik.com/technical_library Link to comment Share on other sites More sharing options...
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