flue terminal position wth a plume kit fitted?

[cjb1971]

Do the flue terminal position i the MI`s refer to the actual positon the flue comes out of the wall,or where the position of the plume kit would end up being if fitted?

 

[baxpoti]

The plume kit is an optional extra so therefore the termination to M.I. is where the flue comes out the wall.

 

[simond]

Yeah but no but yeah, but no.

If you have a flue termination problem eg: too close to a window - in most manufacturer cases the spacings for the actual concentric outlet (eg: air inlet) are reduced if you can site the VTK outlet within MIs.

Therefore on a Buderus (for example) you can halve the standard distances of the normal concentric from most windows, doorways, internal wall corners etc if the fitment of a VTK takes the products of combustion to a point that does otherwise meet the MIs.

On a Vaillant you can get as close as 75mm to window opening if a VTK is used.

So it depends on the manufacturer, who will have a different set of flue MIs for VTK applications.

 

[cjb1971]

With plume kit fitted on a worcester bosch boiler the air intake part of the flu has to 150mm from nearest wall,opening window,and plume kit termination point more than 300mm for window etc etc