Viessmann vitodens 100-w type wb1b

[trevorbayliss]

Hello

Can anyone confirm if this boiler is a combi, because i am reading it does the hot water, but you need a hot water tank for it to run properly.

 

[muggles]

It depends, the 100-W WB1B (now obsolete and superseded by the WB1C) is a range of boilers that includes Combi, System and Open Vented versions. Count the number of pipes coming off the boiler to confirm - seven for a combi, five for a system and four for an open vent (normally)

 

[JohnD]

It's a strange question.

Have you already got one, or are you thinking of buying one? In which case you can have whichever version you want.

p.s.
I have an open vented, and can only see three pipes (including the gas)

edit, oh yes, the plastic condensate as well.

 

[trevorbayliss]

It has the condensate, overflow and 5 other main pipes. Plus i have measured the size and it is 725mm in length and i can see the small dhw heat exchanger above the control panel. So pretty sure it is a combi.

Someone is selling it and when i googled the details it came up as a heating only boiler, hence why i asked here. So pretty sure this is a combi.

Any idea on the age of it. It looks very new. I wonder if viessmann will be able to tell me the age.

 

[Agile]

You would need the long serial number to get the make date.

The W1B superceeded the W1A perhaps about six years ago.

Tony

 

[muggles]

The WB1C has been around for three years ago so the WB1B boiler you're looking at is likely to be at least three years old