nectre MK2 Freestanding Wood Heater Installation Guide
- June 20, 2024
- nectre
Table of Contents
nectre MK2 Freestanding Wood Heater Installation Guide
Product Information
Specifications:
- Model: Nectre MK2 (LE)
- Version: 1.0
- Compliance: AS/NZS 4012:2014 & AS/NZS 4013:2014, AS/NZS 2918:2018
Product Usage Instructions
IMPORTANT INFORMATION
Most building regulatory Authorities in Australia require any wood heater
installation to comply with Installation Standard AS/NZS 2918:2018. Different
states and councils may have varying regulations. Check local building
regulations before installing the appliance. All Nectre wood heaters have been
tested to ensure that they will meet the appropriate safety Standard
requirements if the instructions in this manual are followed. As the safety
and emissions performance can be affected by altering the appliance, no
modifications are allowed without written permission from the manufacturer.
WE RECOMMEND THAT THE INSTALLATION OF YOUR NECTRE WOOD HEATER BE CARRIED OUT BY A QUALIFIED INSTALLER.
WARNING: THE APPLIANCE AND FLUE SYSTEM SHALL BE INSTALLED IN ACCORDANCE WITH AS/NZS 2918:2018 AND THE APPROPRIATE REQUIREMENTS OF THE RELEVANT BUILDING CODE OR CODES.
WARNING: APPLIANCES INSTALLED IN ACCORDANCE WITH THIS STANDARD SHALL COMPLY WITH THE REQUIREMENTS OF AS/NZS 4012 & AS/NZS 4013 WHERE REQUIRED BY THE REGULATORY AUTHORITY, I.E. THE APPLIANCE SHALL BE IDENTIFIABLE BY A COMPLIANCE PLATE WITH THE MARKING ‘TESTED TO AS/NZS 4012 & AS/NZS 4013’.
ANY MODIFICATION OF THE APPLIANCE THAT HAS NOT BEEN APPROVED IN WRITING BY THE TESTING AUTHORITY IS CONSIDERED TO BE IN BREACH OF THE APPROVAL GRANTED FOR COMPLIANCE WITH AS/NZS 4012 & AS/NZS 4013.
CAUTION: MIXING OF APPLIANCE OR FLUE-SYSTEM COMPONENTS FROM DIFFERENT SOURCES OR MODIFYING THE DIMENSIONAL SPECIFICATION OF COMPONENTS MAY RESULT IN HAZARDOUS CONDITIONS. WHERE SUCH ACTION IS CONSIDERED, THE MANUFACTURER SHOULD BE CONSULTED IN THE FIRST INSTANCE.
CAUTION: CRACKED AND BROKEN COMPONENTS, EG. GLASS PANELS OR CERAMIC TILES, MAY RENDER THE INSTALLATION UNSAFE.
Recommendation: Have a qualified installer carry out the installation of your Nectre wood heater.
Warnings:
- The appliance and flue system must adhere to AS/NZS 2918:2018 and relevant building codes.
- Appliances should comply with AS/NZS 4012 & AS/NZS 4013 standards as required by regulatory authorities.
Installing the Heater
Positioning the Heater
First review the necessary clearances specified on the following page
before considering where to position the heater. The heater can be installed
with a choice of three different flue configurations. Clearances specific to
each are listed in the associated tables. Also check the practicability of
installing the flue system in relation to any obstructing roof beams before
positioning the heater. These clearance distances can only be reduced if the
surrounding walls are made of non-combustible material, eg. Stone, brick, or
concrete. If non-combustible material, distance can be reduced to 100 mm.
Alternatively, shielding of the wall(s) can reduce clearances (refer to next
section for more detail).
Two common installation types are:
- Standard Installation: Follow specific guidelines for standard placement.
- Corner Installation: Refer to instructions for corner placement.
Reducing Clearances to Combustibles
Follow instructions for reducing clearances to combustible materials around
the heater to enhance safety.
Installing Fire Bricks
Install fire bricks according to the provided guidelines to optimize heat
retention and distribution.
STANDARD INSTALLATION
CORNER INSTALLATION
FLOOR PROTECTOR (HEARTH)
Unless the heater will be standing on a heat-resistant floor such as a
concrete slab with slate or tiles, it will be necessary to provide a floor
protector (hearth). The dimensions given on the previous page (“2.1.
Positioning the Heater”) are the minimum required for the floor protector to
extend beyond the firebox door opening. It must extend no less than 400mm
(Legs model) or 350mm (Pedestal model) in front of the door opening, no less
than 200mm on both sides of the door opening, and extend under the heater.
The minimum dimensions for the floor protectors are 900mm wide by 900mm deep. It may be desirable, e.g. for aesthetic reasons, for the floor protector to be larger than these minimum dimensions. The floor protector shall be constructed from noncombustible material no less than 15mm thick and with a thermal conductivity not greater than 0.33W/m ºK, eg. compressed-fibre cement sheet. The floor protector may be laid directly on the combustible floor. For more details and variations on floor protectors refer to AS/NZS 2918 Clause 2.2, 3.3.1, & 3.3.2
REDUCING CLEARANCES TO COMBUSTIBLES
If it is necessary to install a heater closer to a combustible surface than
the stated requirements in Section 2 of this Installation Guide, it must be
done in accordance with Australian Standard AS/NZS 2918 Section 3, Tables 3.1
& 3.2.
Shield Construction: The shield shall be constructed from a heat- resistant material. The shield must be fixed to the surface that requires protection and NOT the heater. The Standard allows three options to reduce stated clearances.
- A single layer of continuous material with Minimum Air
- A gap of 12mm—Clearance Factor = 0.40
- A single layer of continuous material with Minimum Air
- A gap of 25mm—Clearance Factor = 0.30
Two-spaced layers of continuous material with Minimum
Air Gaps of 12mm + 12mm—Clearance Factor = 0.20
The shielding must be open at the top and bottom (vented) to allow a continuous airflow. It is this airflow that keeps the surface requiring protection cool. Fixings should not impede this air flow. The shielding needs to go far enough along and up the wall so that the original side and rear required clearances are not compromised. As the flue is now closer to the wall the shielding should also protect the wall from the flue pipe.
For example:
The side wall clearance for the Mk2 is 450mm.
- A 12mm gapped shield on the wall with a factor of 0.40.
- Calculate: 450mm x 0.40 = 180mm. This is the new side wall minimum clearance.
- The shielding needs to be large enough so that none of the original clearances of 450mm are compromised.
INSTALLING THE FLUE
The flue system used when installing the heater MUST comply with the current
installation standard AS/NZS 2918. Full instructions on the installation of
the flue will be supplied with the flue kit. These MUST be adhered to,
including the minimum exit height from the top of the floor protector being
not less than 4.6m, and the minimum exit height above the roof line of roof
ridge as detailed in the instructions.
The MK2 uses a 6”/150mm diameter active flue and must be fitted with one of the following:
-
Rear Flue Shield:
- 900 mm long, minimum 160° arc, stainless steel unpainted rear flue shield with 25mm gap between it and the active flue.
-
Decromesh / Solid Flue Shield:
Note – must be installed with an internal heat shield/ reflector AND ventilated locating ring at base of flue shielding.- A full-length, half-radius perforated flue shield extending from the heater through into the drop box penetrating the ceiling with the perforated surface facing the front, OR equivalent in solid outer flue shield casing (7.75” diameter)
- The first length of casing must have an inner shield extending the full length and positioned so that the inner shield is between the active flue and the rear wall.
- The manufacturer’s ‘locating ring’ must be used to support the flue shielding up off the heater top. It is important that air can be drawn into the base and rear of the flue shielding.
- Place the locating ring around the flue spigot (resting on the heater top) and then place the first length of active flue into the spigot. Slide the shielding over the active flue. Locate the bottom of the deco mesh or solid outer shield inside the locating ring.
- Depending on the supplier, the flue shielding can be one of three sizes – 200 mm, 7 ¾ inch, or 8 inch diameter. The locating ring will fit the two smaller diameters but not the 8-inch. In this scenario, snip through the outer ring with tin-snips as shown in the drawing below. Bend the two “arms” in a little so the ends don’t project out when fitted to the deco mesh. Ensure that the snipped section is at the rear of the flue, out of sight.
FITTING FLUE SEAL
Any gaps between the inside of the flue spigot and the active flue should be
sealed. This can be done by wrapping the bottom of the flue with a length of
fibreglass tape. Alternatively, high-temperature stove cement can also be
used.
INSTALLING THE FIRE BRICKS
The Nectre Mk2 comes with 9 full size bricks (230(h) x 115(w) x 38(d)mm) and 2
half size bricks (230(h) x 55(w) x 38(d)mm). Raise the brick retainer
(supplied inside the firebox) and start standing the bricks up against the
rear and sides of the firebox as shown in the diagram below. Once the bricks
are in, fit the retainer over the top to hold them in place.
INSTALLING THE BAFFLE PLATES
The Nectre Mk2 is supplied with two baffle plates: Upper baffle plate –
400(w) x 160(d) x 5(h) mm.
- Fit the upper baffle plate first.
- With the plate in a horizontal position, slide it up and over the shorter of the two sets of support hooks welded to the top of the firebox.
- Slide the plate back so that it rests on the upper support rod on rear wall of the firebox.
- The upper baffle plate should be in a horizontal orientation.
Lower baffle plate – 495(w) x 250(d) x 6(h) mm
- Slide the lower baffle plate up and over the lower set of support hooks welded to the top of the firebox.
- Slide the plate back so that it rests on the lower support rod on the rear wall of the firebox.
- Unlike the upper baffle plate, the lower baffle plate rests on a slight angle sloping down and back to the rear of the firebox.
INSTALLING ASH PLATE
The ash plate acts to protect the front of the firebox below the door opening
from the hot coal bed and fire. When positioning the ash plate, ensure that
the front top edge is flush against the inside edge of the firebox beneath the
door opening.
TECHNICAL DRAWINGS
MK2 PEDESTAL
MK2 LEGS
Frequently Asked Questions (FAQ)
Q: Can I modify the Nectre wood heater without manufacturer approval?
A: No, any modifications to the appliance should have written approval
from the manufacturer to maintain compliance with safety standards.
Q: Do I need a qualified installer for the installation?
A: Yes, it is recommended to have a qualified professional carry out the
installation to ensure proper setup and adherence to regulations.
Glen Dimplex Australia Pty Ltd
8 Lakeview Drive,
Scoresby Victoria 3179
Australia
T: 1300 554 155
General & Sales Enquiries:
[email protected]
Technical Service:
[email protected]
www.glendimplex.com.au