4.4Hearth�
•A Hearth or Heat Resistant Floor Protector will be required when the fire is at 790mm or above from floor level to the
Fireplace opening. Hearth sizes (measured from the fireplace opening):
- 1348mm W x 300mm D (EK950)
- 1647mm W x 300mm D (EK1250)
- 1947mm W x 300mm D (EK1550)
•When the Fireplace is installed below 790mm from floor level to Fireplace opening, a 1000mm deep, heat resistant
and non-combustible, hearth surface and structure in front of the fireplace can be installed strictly in accordance
with AS/NZS2918 or the entire floor is fully non-combustible or heat resistant.
4.5Mantel �
•Must be fully heat-resistant and non-combustible.
4.6Fireplace Platform �
•The Fireplace must be installed onto a non-combustible platform, suitably designed to take the load of the
Fireplace, Flue and AAC Panel Heat Cell. If the platform is constructed of a combustible material, the platform
must be insulated from the fireplace, using 75mm thick AAC Panels.
•The platform must not inhibit air flow through the vents into the AAC Panel Heat Cell.
4.7Seismic Restraint �
•The fireplace must be fixed through the base of the appliance into the platform that supports it, not the insulating
material.
4.8Combustible Cavity Venting �
•Air vents can be any size or shape, provided that the total combined open surface area is a minimum of
35300mm2 (for EK950 and EK1250) and 70600mm2 (for EK1550). Note: a 150mm Ø hole = 17671mm2
•Vents can be on the sides, back or front of the cavity. Vent air must come from an external space and not the
building cladding cavity.
•Vents can be no higher than 300mm above the base of the fireplace.
4.9AAC Cavity Venting �
•The AAC Heat Cell requires venting to provide fresh air into, and heated air out, of the Heat Cell. The vent open
area minimum is 24000mm2 (for EK950 and EK1250) and 48000mm2 (for EK1550). These will be at the base of the
AAC Heat Cell. Note: a 110 x 110mm hole = 12100mm2
•Venting of the AAC heat cell is through the inner flue casing and the flue casing cover, via the Dropbox.
4.10Finishing �
•When attached to the main envelope of the building the installation must comply with local Building Code
Requirements for weathertightness. This is not the responsibility of Escea.
•Ensure that any drained cavity requirements are met; tanking or sill trays may be required.
•Claddings or finishes applied to the front of the AAC cavity must be heat resistant or non-combustible. Claddings
to the side or back surface of the combustible cavity structure can be a combustible material.
•Flashings or other protection may be required for the recessed edges of the AAC Panel and cladding around the
opening of the Fireplace. These recessed surfaces may be exposed to high levels of heat during operation and
should be suitably designed to accommodate this exposure.
4.11AAC Heat Cell Flue Dropbox �
•A Heat Cell Flue Dropbox (575 x 575 x 77mm with 395mm Ø centre hole) is an integral part of the Combustible
Cavity Installation Method, supporting the flue and casings, and as a transition piece to seal the AAC Heat Cell.
•A spacer bracket is fitted to the 350mm Ø flue to support the Dropbox. Correct height alignment is essential.
4.12Flue �
•This EK Series Fireplace uses a double cased 350-400-450mm Ø flue system with a 650mm Ø Anti-Down Draught
Cowl and Casing Cover. The EK950 and EK1250 have a single flue, while the EK1550 has a twin flue.
•Refer to Sec. 7 for Flue Specifications.
4.13Compliance �
•The design and installation of the EK Series Outdoor Fireplace Kitchen within a timber framed cavity and AAC
Panel Heat Cell must comply with this Design Guide, the EK Series Installation Manual #630451 and AS/NZS2918.
