6
It is recommended a “Metro ECO Built-In Flue System” be used
with the installation of your Metro ECO Mega Smart Built-
In. The Metro ECO Built-In Flue System incorporates Metro’s
unique vertical discharge cowl which improves fl ue draft and
performance of the Metro ECO Mega Smart Built-In wood fi re.
Stage 6 – Fitting the fl ue system
Box Contents:
• 1 x Metro ECO Mega Smart Built-In water heater
• 1 x 70 ml tube of Pioneer fi re cement
Installation - This water heater is designed to
bolt externally to the fi rebox, it can be fi tted
to either side, fi tting the water heater is best
performed prior to installing the fi re.
1. Remove the Fascia (if fi tted) then remove the vertical
angle cover plate located just behind the door hinge
or door latch pin depending on which side you intend
fi tting the water heater to. If fi tting to the hinge side it is
recommended you remove the hinge also to assist with
access clearance.
2. Fold open the side return of the inner wrap so it is parallel
with the outer cabinet, this is to allow room for the water
heater to slide in between the fi rebox and the wrap.
3. Remove the 5 x 50mm knock out plates from the 2 inner
wraps and outer cabinet through which the copper pipes
will exit.
4. With a long handled 10mm set spanner reach in between
the inner wrap and the fi rebox and loosen the nuts on the
2 rear and 1 front water heater securing Pozi drive screws,
then unscrew from the inside and discard 2 of the 6mm
nuts as the rear screws will thread directly into the water
heater casting.
5. Remove the water heater from it’s box and inspect the
threaded holes making sure the Pozi drive screws removed
from the fi rebox will thread in easily.
6. Thoroughly clean the 2 copper pipe ends with a fi le or
emery paper, this will make brazing easier.
7. Smear a liberal amount of Pioneer fi re cement over the
fl anged face of the water heater.
8. Holding the water heater by the bottom of the casting and
the 2 x 25mm tubes facing the rear of the fi re carefully
position the water heater in between the inner wrap and
the fi rebox until the pipes enter the inner wrap then slide
the water heater along until the front Pozi screw lines up
with the slotted hole. Take care to keep the water heater
close to the wrap and away from the fi rebox so as to not
wipe the fi re cement off. Position the water heater so the
front screw passes through the slotted hole in the water
heater, fi t a 6mm nut and washer and hand tighten.
9. Pivot the water heater around this bolt to fi t the remaining 2
Pozi drive screws which are threaded into the casting.
10. Fully tighten all Pozi drive screws, you should see fi re
cement oozing out around the edges which will indicate a
good square fi t.
11. Insulate pipes where they exit the outer cabinet as cold air
is being drawn in past this point.
12. Bend the side return back so it folds around the front of
the water heater and refi t the angled cover plate, this is
critical.
13. Braze the required pipe work to the 2 x copper pipes
in accordance with standard wet back installation
requirements and inspect for leaks. Both side bricks must
be fi tted inside the fi rebox.
14. Ensure all fi rebox and wetback installation and operation
manuals are left for the home owner.
Stage 7 – Metro ECO Mega Smart Built In – Water heater fi tting instructions
• A minimum length of 4.0 metres of 150mm diameter
fl ue pipe is required. The total length of the 150mm
fl ue pipe must be fully encased from top to bottom
with a 200mm diameter inner casing and a 250mm
diameter outer casing.
CAUTION!
Important Information
ECO Mega Smart Built-In
Water Heater
