11
There must be no combustible materials inside the fireplace opening.
12.1 - FIRE SURROUND APPLICATIONS
12.2 - FIRE SURROUND REQUIREMENTS (See diagram in Section 12.1)
a.
If the Fire is to be fitted into a purpose made Fire Surround it must have a temperature rating of 150
º
C.
b.
Where the fire is to be fitted into an existing 16” chairbrick a minimum depth of 175mm is required & the Knee of the
Chairbrick must be removed. If sufficient depth is not available the chairbrick will have to be removed, or extra depth added to the front.
c.
Where the depth available is greater than 240 mm the fire can be fitted without changing the chairbrick.
d.
The Fire requires a non-combustible hearth of at least 12mm thick.
e.
The surface of the hearth must stand at least 50mm above the floor and level with the fireplace opening.
f.
The hearth must project at least 300mm in front of the fireplace opening and 150mm either side (700mm minimum hearth width).
g.
The base of the fireplace must be flat, level and square to the face of the fireplace opening.
h.
The Surround must cater for a minimum flat surface around the Fireplace Opening allowing 625mm high by 530mm wide.
This is essential in order to achieve a good seal between the face of the surround and the sealing flanges of the fire.
i.
The Fire Surround must be fully sealed to the Fireplace Opening to ensure a good flue seal.
j.
The Fireplace Opening should have provision for a gas supply through the rear, see Section 11 Gas Supply.
k.
The High Level and Thermatronic Control Systems are fitted with Electronic Equipment, which is sensitive to dampness and high
humidity so it is very
important
that any rendering/building work is allowed to thoroughly dry out before Installation.
! IMPORTANT NOTE !
Dry lined walls – ensure that any air gaps between the back of the plasterboard and wall are sealed
around the builders opening or fireplace as this can affect flue pull and wall staining.
12.3 - CLEARANCES TO COMBUSTIBLE MATERIALS AND SHELVES (Ref: Diagram in Section 12.1)
a.
A
non combustible
shelf can be fitted above the fire and should be positioned at least 95mm above the builders opening. We
recommend the depth of the shelf should be a maximum of 75mm as anything deeper will reduce convection air and the
efficiency of the fire. For deeper non-combustible shelves they must be raised a further 25mm for every extra 25mm of depth.
b.
A 150mm
combustible
shelf can be fitted above the fire but must be positioned at least 150mm above the builders opening. For deeper
combustible shelves they must be raised a further 25mm for every extra 25mm of depth.
c.
Any combustible sidewall must be at least 500mm from the inside of the builders/fireplace opening, however with a combustible fire
surround it can be 150mm from the inside of the builders/fireplace opening provided it does not protrude more than 150mm and must be
increased by 25mm for every extra 25mm of depth.
d.
With all heating appliances, soft furnishings, decorations and wall coverings may discolour or scorch if placed too close.
e.
No combustible material, e.g. curtains must be closer than 500mm to the builders opening.
f.
Any combustible wall claddings (wall paper) must be cut back to a height of 750mm and 300 mm either side of the Fireplace Opening.
g.
Due to the heat output of The Hotbox H.E. it is
not recommended
to use blown vinyl wall covering around the fire.
NOW PROCEED TO SECTION 16 - FIXING THE FIRE.
12.
CLASS 1 OR LINED FLUE FIRE SURROUND APPLICATION
F
IREPLACE CONSTRUCTION
Fireplace Minimum Requirements
Fireplace Construction
With 16” Chairbrick
