29 March 2021
Due to continued product improvement, Warmington Ind LTD reserves the right to change product specifications without prior notification.
All Dimension are in mm
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Copyright ©
2
Location of the Fire. Open fires are better located at one end of a room or area, as they project the heat away from their opening.
The Topography of the land.
The slope and position of the land in relation to the home has a bearing on how the wind will interact with the fire and flue system. Care needs to be taken to ensure that the flue termination is in
the correct position to maximise performance.
The Prevailing Wind.
Care needs to be taken to ensure that the flue termination is in the correct position as wind and gusts that hits the flue and cowl system may overcome the cowl and draft back down the flue into
the home. This can be a combination of down draft and high pressure.
Hearth and Plinth:
The Height of the Hearth off the Floor. The Finishing that is to be used on the Hearth is to be allowed for at the design stage.
Note : Ensure Air Intake at Base of Firebox is not blocked or restricted .
Positioning of the Flue System:
There is a maximum distance that an offset flue can be Installed. Reference to relevant standards.
Flue And Fire Clearance:
To be maintained to the Manufactures Instructions &/or Comply with appropriate Standards & Building Codes .
Pressure Differential, Venting & External Air into the Building
:
All fires need air to burn and draw correctly, Kitchen Fans, Air Conditioning units, High Wind Zones, Naturally forming Draft spaces, can all have an effect on the pressure difference from inside
the building to the outside. A lower pressure in the building may induce a draft down the flue system and back into the building causing the fire to smoke or spill into the building.
Care needs to
be taken at the design and installation stage to adequately vent the building, or some mechanical system to ensure that there is always a neutral or positive pressure at the fire-
place and a negative pressure at the flue outlet.
This will ensure that the draft in the flue system is always to the outside.
“
CAITEC AIR
”
the limits and requirements. See details in these Specifications.
Wind Noise:
You may encounter wind noise in some installations. It is recommended
to use an enclosed chase with a chimney pot to help reduce noise. There will always be some
noise from the flue systems of all fireplaces.
INSTALLATION ORDER OF OPERATIONS
When using the Existing Chimney as the Flue System:
Ensure that the Existing Chimney Comply to the Appropriate Standards & Building Codes.
If the Chimney is not sound or needs repair then a Flue System may be required through the Existing Masonry Chimney. See later pages in this
specification.
The Integrity of the Chimney needs to be confirmed by the Installer or Gas Fitter at the time of Installation.
POINTS TO CONSIDER PRIOR TO INSTALLATION
Prior to Construction and Installation
Important Notes
:
Consult a licensed certified gas fitter for correct gas installation.
Install to current standards.
All New Installations require an Application for Local Council Permit/Consent No (Repairs on Fires NOT Included.)
For Special Requirements concerning materials (Timber Mantles and Surrounds) within close proximity of Warmington products, please contact your local Warmington
Technical Consultant.
Install procedure to be carried out by a recommended
‘
Warmington Installer
’
only, or visit www.homeheat.co.nz, go to
‘
Members
’ &
follow Instructions to find a
Certified NZHHA SFAIT Installer.
Stage 1:
Removing Existing Fire (Brick Fire, Register Fire or Inbuilt).
Important Note:
Before removing the fire, check outside & inside of chimney chase for structural cracks etc. These will need to be repaired before installation.
Remove old Flue System if required & then remove existing Fire from chimney chase.
Sweep chimney & clean entire chase out thoroughly. If a ash pit exists at base of Fire, this will need to be sealed off or covered over.
A new plinth & hearth may need to be Installed if necessary.
The existing mantle opening may need to be cut out or closed down to accommodate the Warmington Firebox.
Stage 2: Installing Warmington Retro Firebox.
In most cases there will be a gap around the firebox once in place. Prior to installation, this needs to be filled in with a non
-
combustible material & with a 45 degree
chamfer at the top of the firebox. See following pages.
Install Firebox into mantle opening ensuring Firebox flange ends up hard against mantle opening face to create a good seal.
Secure fire in place.
Stage 3:
Installing Chimney Top Flashing System.
Remove any existing cowling or top to leave a flat clean surface.
Cut spigot plate flashing to suit size of chimney top & secure level & in place with 6mm dynabolts or equivalent. Use silicon to seal spigot plate. Note: The diameter of
the spigot pipe should be equivalent to the flue size required for fire typ .
Mortar or concrete over spigot plate.
Install liner (cut to length), spider, gas cone, cowl.
NOTE:
Clean and touch up paint on the fires and cover if necessary (installer and gas
-
fitter).
Maintenance.
