• 10 X 20kg bags of handy crete 17MPA [For footings]
If fitting fire bricks
• concrete cutting blade on either a drop saw, angle grinder or power saw
Installation
1. Start by become familiar with each modules function and placement within the structure [See
plans]. Note: If there is water in the holes on the top of the concrete modules this needs to
be blown out and allowed to dry before assembly
2. Ensure that the location for the fire place is level, free of top soil and has a stable building
base.
3. Mark out on the ground the footprint for the two wood boxes, with each module being
1360mm x 720mm.
4. Two footing holes need to be dug on the left and two on the right. This means two holes for
each wood box on the outer ends. [See plans]. These holes need to be a minimum of 500
mm deep and 300mm wide with an under cut at the base. Size will depend on site conditions.
Make the holes wide enough on the outside edges so that you can pour the concrete into the
footings with the wood box module in place. This footing system is designed for “good
ground” as defined in 3604.
5. Lift the first wood box high enough to enable the two footing rods to be screwed into the
threaded sockets on the underside corners & then tighten firmly.
6. Lower the wood box into position checking that the rods are central in the holes and that the
unit is level both ways. You need to spend time getting this part right. Then repeat the
procedure for the second wood box. Laying a piece of flat galv under the joint can make it
easier to slide the two boxes together.
Note: The concrete modules are tapered in order to get them out of the moulds during
casting. This mean that there will be a small gap at the rear when the two wood boxes come
together.
7. Now check that both wood boxes are level and aligned and that the bolt holes match.
8. Bolt the wood boxes together with the supplied galvanised bolts ensuring that you have
washers on both sides and tighten firmly. The long bolts go in the back holes.
9. Fill the footing holes to the top with 17 MPA concrete.
10. Lift the fire box to a height that allows you to screw the four 10mm x 100mm threaded rods
into the underside corner sockets. Tighten firmly.
11. Make sure that the holes on top of the wood box are clean and dry and fill them with anchor
fix.
12. Lower the fire box into place and align. A sash cramp and rubber mallet may be needed. And
in some cases you may need to tap the pins to align with the holes.
13. Check again for level and if adjustment is needed use a fine wedge to hold it in place until
Anchor fix has cured.