22
Bends
mu
st be fitted at a
distan
ce
of at
least 50% of the total heat exchang
er
e.g. for a 60ft
long he
ater,
the clo
se
st to
the burner a
bend
can be is 30ft.
Figure . 9. Possible Heater Orientations
S20
S30
S40
S50
S60
S70
U20
U40
U60
S80
U80
S10