Halstead Ace High, Installation And Servicing Instructions, Page: 6 / 40

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4
SPECIFICATION FOR FLUE SYSTEMS
WITH AN EXTRA 90° ELBOW
a
b
Fig 4 - Use of the flanged elbow, extension(s), 90°
extension elbow, and standard flue assembly.
Maximum allowable flue length of ‘a’ + ‘b’ = Ace 3233mm,
Ace High 1233mm.
(i.e maximum horizontal flue lengths minus resistive length of
767mm for 90° extension elbow.)
5
SPECIFICATION FOR FLUE SYSTEMS
WITH AN ELEVATED FLUE SYSTEM
6
SPECIFICATION FOR FLUE SYSTEMS
WITH AN ELEVATED FLUE SYSTEM
INCORPORATING BENDS
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b
a
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b
a
c
Fig 5 - Use the vertical turret
socket, 90° extension elbow,
standard flue assy &
extension(s)
‘a’ measured from the top of the
boiler casing to the centre line of the
extension elbow.
‘b’ measured from the centre line of
the extension elbow to the outside
wall face .
Maximum allowable flue length of
‘a’ + ‘b’ = Ace 4000mm, Ace High
2000mm.
Fig 6 - As fig. 5 but with
additional 90° extension elbow.
‘a’measured from the top of the boiler
casing to the centre line of the extension
elbow
‘b’ measured from the centre line of the
extension elbow to the centre line of the
second extension elbow
‘c’ measured from the centre line of the
second extension elbow to the outside wall
face.
Maximum allowable flue length of
‘a’ + ‘b’ + ‘c’= Ace 3233mm, Ace High
1233mm.
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