Maintenance And Servicing; Replacing The Fire Bricks; Replacing The Firebox Side Shields; Replacing The Baffle Plate - Nectre Fireplaces Big Bakers Oven Installation Instructions Manual

2. MAINTENANCE AND SERVICING

2.1.

REPLACING THE FIRE BRICKS

The firebox needs fire bricks to increase the thermal mass and
guarantee the longevity of the steel firebox. Over time the
firebricks may become cracked and crumble away. At this
point, they should be replaced.
To replace the firebricks:
1) Remove the firebox side shields.
2) Remove the brick retainer.
3) Remove bricks and ash from the firebox.
4) Replace with new bricks and reposition the brick retainer
over the bricks.
5) Refit the side shields.
Firebox side shield Brick retainer
Triangular fire brick
2.2.

REPLACING THE FIREBOX SIDE SHIELDS

The heater comes with two 8mm thick sacrificial shields fitted
to the sides of the firebox to protect the walls of the firebox.
Lugs on the shields allow them to hang over the angled cutout
on the sides of the firebox along the top.
To remove the shields, raise until the support hooks are clear
of the triangular cutout on the side of the heater and remove.
To fit new side shields, simply hang them on the diagonal edge
of the triangular cutout on each side of the firebox.
The side shields come as a left and a right; they are not
interchangeable.
The baffle plate helps to retain the heat in the firebox by
lengthening the path of the flame before it goes up the flue.
Over time, the baffle plate will begin to sag a little due to the
excessive heat. This will not affect the way the fire burns.
Eventually, the baffle plate will burn through (5+ years)
and must be replaced.
To remove the baffle plate:
1) Slide the baffle plate forward until the rear edge is clear
of the brick retainer.
2) Lowering the rear of the baffle will allow the front to slide
past the front support pins.
3) Once the baffle has cleared the front support pins, it can
be removed from the firebox.
4) Repeat steps 1) to 3) in reverse to fit the new baffle plate.
Rear fire brick
If the door does not close firmly, then the door catch can be
adjusted.
After locating the door catch on the front lower right-hand
side of the door opening on the inside of the firebox, using a
large flat-end screwdriver, place it under the base of the
catch and gently lever it out.
Close the door with the door handle to test tightness. If no
improvement, repeat the process until the door can be
closed firmly.
Over time creosote and ash can build up at the bottom of the
heater. If not checked and cleaned annually, it can result in a
blockage stopping the flames and smoke from exiting up the
flue when the by-pass damper is closed.
The plate at the bottom of the oven can be lifted from the
front where there is a raised edge. With a dustpan brush, go
through the square access hole and brush along the sides and
rear of the heater bringing any creosote build-up into the
center so it can be removed with the dustpan.
5
2.3.

REPLACING THE BAFFLE PLATE

2.4.

ADJUSTING THE DOOR

2.5.

CHECK CREOSOTE BUILD UP