The Heatmaster open fireplace system comes as a fully self-contained fireplace kit. The firebox, log grate, ashtray, flues and cowl are the basic components (Fig 1A). When installing your Heatmaster fireplace please be sure to read the following carefully and to comply with all clearances. Full specifications are available upon request.
Fig 1A – Flue System sizes and Specifications
Fig 1A – Dimensions
Fig 1B – Min. Framing Dimensions on Non-combustible floor
|Height from non combustible floor||770mm||780mm||780mm||840mm|
Fig 1B – Min. Framing Dimensions using standard hearth (fig 2A) on combustible floor
|Height from non combustible floor||808mm||818mm||818mm||878mm|
Hearth details for combustible flooring.
The hearth required under the Heatmaster firebox consists of two sheets of 6mm thick fibre-cement with a 1mm thick sheet of steel between them. It must be spaced off the floor with non-combustible spaces (square tubing) to give a 25mm ventilated air gap (Fig 2A). It should extend 350mm in front, 25mm behind and 200mm either side of the firebox opening. (Fig 2B)
Fig 2A – Hearth Installation
Fig 2B – Hearth Installation
|Model No||width ‘A’||depth ‘B’|
Fig 2C – Installing your Heatmaster step by step
Timber Installation. Fully insulated Models. A step by step guide to installing "A series" Heatmaster.
After selecting your Heatmaster unit and installing your hearth (see above diagram fig 2A) erect framework with the appropriate clearance (see timber framing specificationfig 1B).
Install selected insulated "A series" Heatmaster unit along with flues (see Flue detail diagram fig 3A).
Enclose framing with plasterboard/gyprock or timber paneling, ensuring approved clearances are maintained.
Select one of our many finishing options. A wide range of stone, marble, cast iron or steel fascias and mantelpieces are available.
Fig 2D – Finishing your Heatmaster intallation
Fluing your Heatmaster fireplace.
The Heatmaster double skin flue kit, into timber and plaster must have clearance of 25mm from any combustible material. Be sure the inner stainless steel flue crimped end faces down while the outer galvanized flue crimped end faces up. The first length of galvanized flue must have ventilation holes at the bottom; these cool the flue down by allowing air to travel in between the two skins. Be sure to pop rivet (or use self-tapers) each stainless and galvanized flue length together along with the cowl. The flue must protrude above the roofline by no less then 600mm with nothing obstructing within 3600mm (See diagram 3B).
Fig 3A – Flue installation
Fig 3B – Flue Roof Clearance
Fig 3C – Off sets and Clearances