vaillant 831 flue

[Mpb-10]

ive only fitted a few new boilers am newly registered. have got a bit of an awkward on flue wise, cant go straight up, well i can but it will be on the ridge of the roof and will sit in the middle of the window view so will look a mess, cant go out the back or to the side, can you go up off the top of the boiler, which will take me into a roof space then across and out of the side of the house? ive never done it before and nothing in instructions so was just after some advice.

thanks everybody

 

[CES]

You can as long as the flue length is within the accepted length and is accessible. You could also go up and offset the vertical using two 45's within the roof space.

 

[chris watkins]

http://www.vaillant.co.uk/stepone2/data/downloads/1c/43/00/834449_13.pdf
Hope this helps, check page 9 (up to 12M vertically, less bends). You should have had to do this as part of the ACS, now you can put it into practice.