Masport WAIMAKARIRI Series User manual

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WAIMAKARIRI (PED, ASH & LEG)
Ultra-low Emission Burner
Installation & Operation Manual
THIS MANUAL CONTAINS IMPORTANT INFORMATION.
PLEASE KEEP IT IN A SAFE PLACE FOR FUTURE REFERENCE.
Manufactured in New Zealand by:
GLEN DIMPLEX NEW ZEALAND LIMITED
P.O. Box 58473, Botany, Manukau - 2163
Ph: 0800 666 2824
Fax: [phone]
Email: [e-mail]
Web: www.glendimplex.co.nz
4th Mar 2020 Part No. 599386 V1.1
*Glen Dimplex New Zealand Ltd reserves the right to change specifications, the content of this manual, or the design of its product without prior notice.

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CONTENTS
PAGE
1.0 INTRODUCTION 3
1.1 ITEMS SUPPLIED WITH THE FIRE 3
1.2 HANDLING AND TRANSPORT 3
1.3 WARNINGS 4
1.4 CAUTIONS 4
2.0 TECHNICAL SPECIFICATIONS 5
3.0 INSTALLATION OF THE WAIMAKARIRI ULEB 6
3.1 UNPACKING 6
3.2 POSITIONING 6
3.3 FLUE REQUIREMENTS 6
3.4 FLOOR PROTECTOR REQUIREMENTS 7
3.5 REDUCING CLEARANCES 7
3.6 SEISMIC RESTRAINT 8
3.7 PREPARING THE BURNER FOR FIRST LIGHT-UP 9
4.0 PERMITTED FUELS 13
4.1 TESTING YOUR WOOD MOISTURE 13
4.2 RECOMMENDED FUEL LOG SIZES 13
5.0 OPERATIONAL SEQUENCE 14
5.1 BEFORE FIRST LIGHT-UP 14
5.2 COLD START-UP 14
5.2.1 KINDLING + INTERMEDIATE LOAD 1 14
5.2.2 INTERMEDIATE LOAD 2 14
5.2.3 MAIN LOAD 15
5.2.4 RE-FUELING & SHUT-DOWN 15
6.0 CATALYTIC COMBUSTOR & MAINTENANCE 16
6.1 HOW IT WORKS 16
6.2 BEST PRACTICES TO ENHANCE LIFE OF COMBUSTOR 16
6.3 INSPECTING CATALYTIC COMBUSTOR 17
6.4 REMOVAL OF CATALYTIC COMBUSTOR 17
6.5 CLEANING OF CATALYTIC COMBUSTOR 17
6.6 WHEN TO REPLACE CATALYTIC COMBUSTOR 18
6.7 DIFFERENT STATES OF CATALYTIC COMBUSTOR 19
6.8 MAINTENANCE OF OTHER WAIMAKARIRI PARTS 20
7.0 WAIMAKARIRI REPLACEMENT PARTS 21
8.0 TROUBLESHOOTING: CAUSES & REMEDY 22
WAIMAKARIRI WARRANTY REGISTRATION 25
WAIMAKARIRI WARRANTY TERMS & CONDITIONS 27

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1.0 Introduction
Congratulations! You are the owner of a state-of-the-art Ultra Low Emission Burner “Masport
Waimakariri” designed and developed by Glen Dimplex New Zealand. Thank you for purchasing a Masport
appliance.
The WAIMAKARIRI ULEB is a new generation catalytic wood fire, designed to provide you with all the
warmth and comfort of a fireplace, at the same time having ULTRA LOW emissions to dramatically reduce
the impact on the environment. Environment Canterbury has approved the installation of this burner in all
clean air zones that have been previously banned for the installation of a conventional wood burner. As it
bears the Masport brand, it promises to provide you with the economy, safety, and efficiency.
To make the most of your appliance, it is important to install, operate, and maintain the burner correctly.
Please read this installation and operations manual carefully before installing or operating your
WAIMAKARIRI ULEB. Please take the time to understand the basic principles of this new burner which uses
a catalytic combustion technology.
Your Waimakariri ULEB burns less fuel and produces more consistent heat than a conventional wood burner
while producing fewer particulates. The catalytic combustor fitted in this burner is made out of special high-
grade stainless steel, which is coated with a catalytic coating. When heated to over 3000C, it will begin to
light off (glow), and the combustor begins to burn off small fine unburnt particulates from the combustion
gases. The catalyst will then rise in temperature up to approximately 5000C and reaches its optimum stage.
During the initial light-up phase with the damper in the open position, the combustion gases are allowed to
pass over and through the catalyst, preheating the catalyst. After approx. 20 minutes, the catalyst will reach
the required temperature. At this stage, the damper is closed, and all combustion gases are passed through
the catalyst, which will start burning the finer unburnt particles.
Overall, the catalytic combustion technology is a more effective and efficient way of burning wood, which
gives significantly fewer emissions and returns maximum heat from reduced fuel consumption.
1.1 Items supplied with the fire
- Waimakariri ULEB
- 1 x Baffle
- 1 x Catalytic Combustor Assembly
- 1 x Stainless Steel Flame Arrestor Plate
- 2 x Full + 4 x Cut Masonry Bricks
- 345mm x 345mm Ceiling plate
- Accessory Pack – which contains
- 1 x Installation and Operations Manual
- Tool for removing flame arrestor plate
- 1 x Door Handle
1.2 Handling and Transport
The WAIMAKARIRI ULEB has a total weight of 135 kg.
Single person handling could cause injury; hence Glen Dimplex recommends suitable handling equipment
and two persons while handling, both outside and inside the house. Removing bricks and loose items inside
the firebox will help to reduce weight and will ease the handling of the burner during installation.
All precautions have been taken during the design of packaging to avoid transport damage until the burner
reaches the customer’s house. In case any damage is found while opening the fire, please report it to your
dealer immediately before installing the burner.

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1.3 Warnings
 The installation of the Waimakariri ULEB requires a building consent before installation
commences. Check with your local Building Authority whether there are any extra requirements
before commencing installation.
 The Waimakariri ULEB and flue system shall be installed in accordance with AS/NZS 2918:2001
and appropriate requirements of the relevant local building codes.
 Glen Dimplex highly recommends NZHHA trained SFAIT (Solid Fuel Appliance Installation
technician) installer for installation of the Waimakariri ULEB. Your dealer or heating specialist
will be able to help with recommendations as well as advice on permits/consents required for the
installation in your area.
 Please read carefully all the dimensions and recommendations provided on the technical
specification section of this manual. The dimensions given comply with the required safety
standard AS/NZS 2918:2001.
 Safety and emissions performance of WAIMAKARIRI can be affected by altering the appliance; hence
no modifications are allowed without written permission from the manufacturer.
 Please ensure that only components approved by Glen Dimplex New Zealand are used for the
installation, as substitutes may adversely affect performance and might nullify compliance with the
requirements of AS/NZS 2918 safety standard.
 The Waimakariri ULEB should be installed with a Masport flue system.
 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.
 The Waimakariri ULEB must be serviced at least once every 2 years from service agent trained
and authorized by Glen Dimplex New Zealand.
 The catalytic combustor used in the Waimakariri ULEB must be inspected and maintained
periodically. Read section 6.0 on the monitoring and maintenance of the catalyst carefully and
follow the instructions.
1.4 Caution
 This appliance is not intended for use by persons (including children) with reduced physical,
sensory, or mental capabilities, or lack of experience and knowledge unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
 Do not leave children unattended near the alighted fire and keep them well away from the
fire when in use. Supervise young children to ensure that they do not play with the appliance.
 Do not use flammable liquids or aerosols to start or rekindle the fire. Also, do not use such
flammable materials near this appliance when it is operating.
 Always keep clothing, firewood, furnishing, and other combustible materials at a safe
distance from the fire.
 Do not touch any part of the fire other than the door and the damper handle when in use as
all other parts can be extremely hot.
 Cracked/broken door glass, makes the installation unsafe. Do not operate the fire with
cracked glass.
 Do not attempt to clean or maintain the fire when in use or with hot embers in the
combustion chamber. Ensure that embers and all other parts of the fire have cooled down
completely before starting ash removal or other maintenance.
 Do not use the fire if there is a malfunction, a suspicion of breakage or unusual noises.
Contact your nearest Masport dealer or customer service team at Glen Dimplex New
Zealand.
 This appliance should always be operated & maintained as per instructions in this manual.
Failure to follow above warnings, cautionary measures
and instruction given in this installation and operation
manual will void the Masport warranty of this product.

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Waimakariri ULEB (PED, ASH & LEG) – Technical Specifications
Waimakariri fire has been tested and comply to following standards & tests:
Environment Canterbury’s Real-life test - Canterbury test method CM1
NZ National Environmental Test Standards - AS/NZS 4012:2014 & AS/NZS 4013:2014.
NZ National Environmental Safety Test Standard - AS/NZS 2918:2001
Overall Dimensions
623 mm Wide x 616 mm Deep x 713 mm High
Net Weight of Burner
135.0 kg
Test Method
Emissions
mg/MJ
Emissions
g/kg
Efficiency
%
Authorization
Nos
Real Life Test
Canterbury Method V1.6
(ULEB)
24 mg/MJ 0.32 g/kg 65%
CRC 202414 (PED)
CRC 203573 (ASH)
CRC 203575 (LEG)
National Environment Standard
AS/NZS 4012/13:2015 (LEB) 25 mg/MJ 0.34 g/kg 66%
CRC 202415 (PED)
CRC 203574 (ASH)
CRC 203576 (LEG)
Heat Output
Power in kW
Minimum Average Output
3.9 kW
Maximum Average Output
6.3 kW
Flue Shield
900mm Long SS Masport Double Flue Shield
Flue System
Std 4.2M Long, 150mm Masport Flue System
** For installation in Canterbury & South of
Canterbury, we recommend
extending 200 outer casing within 250~300 from termination of flue.
Floor Protector Requirement
Ash Floor Protector
Clearances to Combustibles:
Parallel Installation
Corner Installation
`
A- Rear Panel to Rear Wall 100 mm C- Glass to Floor Protector Front 300 mm
B-Cooktop Edge to Side Wall 180 mm E- Cooktop Corner to Wall 100 mm
C- Glass to Floor Protector Front 300 mm H- Flue Centre to Wall 440 mm
D- Floor Protector Side 100 mm L- Floor Protector Diagonal 1292 mm
F- Flue Centre to Rear Wall 288 mm M- Floor Protector Side 1098 mm
G- Flue Centre to Side Wall 492 mm N- Flue Centre to Floor
Protector Front
670 mm
I- Floor Protector Front Edge 522 mm R- Flue Centre to Wall Corner 622 mm
J- Floor Protector Width 824 mm WW- Overall Width of Fire 623 mm
K- Floor Protector Depth 958 mm DD- Overall Depth of Fire 616 mm
HH- Overall Height of Fire 713 mm
Seismic Restraint
- Waimakariri shall be seismically restrained, including floor protector. Use 8mm
Dynabolts for concrete floors or 8mm coach screws for wooden floors, of appropriate lengths.

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3.0 Installation of the Waimakariri ULEB
3.1 Unpacking
Remove the shipping wooden crate and packing around the burner. Remove the loose pieces from the firebox.
Remove and discard the screws holding the wood fire to the shipping pallet. Using appropriate lifting equipment,
move the burner close to its installation position. Correct lifting procedures should be observed to avoid injury
while handling a Masport Waimakariri ULEB.
3.2 Positioning
The Waimakariri ULEB has been tested and complies with a parallel or corner wall configuration, with minimum
distances to heat-sensitive materials in accordance with the AS/NZ 2918:2001 safety test standard. Determine
the installation position for your Waimakariri ULEB only after considering the necessary clearances (See
Technical Specifications on page 5 of this manual) and checking the practicability of installing the flue system. No
wall or other fixed objects should be closer to the front of the Waimakariri ULEB than two meters. Regard heat
resistant walls with heat-sensitive surface treatments (e.g., wallpaper or heat-sensitive paints) as heat-sensitive
walls.
Any proposed deviation from the specified clearances or installation configurations should be discussed with a
registered “NZHHA” approved installer or GDNZ’s technical team, thus ensuring that progression after that is in
accordance with the guidelines in the AS/NZ 2918:2001 test standard and subsequently no compromise on
safety.
3.3 Flue Requirements
Standard 4.2M long, 150mm diameter Masport flue systems that have been tested and complies with the current
installation standard AS/NZS 2918:2001 Appendix F shall be used for Waimakariri ULEB along with the 900mm
long, Masport St/St double skin flue shield. Clearances to combustible given on section 2.0 have been
determined during a safety test, which was carried out with standard parallel and corner installation configuration
with a minimum 2.4m high ceiling.
If a flue exits out of the roof within 3 meters from the ridge, the outer shield shall be not less than 600mm above
the ridge. If the flue exits further than 3 meters out from the roof ridge, then it must project at least 1000mm
above roof penetration. This dimension may need increasing to ensure that the top of the flue is at least 3 meters
away from the roof or other obstruction when measured horizontally.
The flue pipe shall extend not less than 4.2m above the top of the burner. Due to factors such as roof pitch,
predominant winds, nearby obstructions (i.e., trees, buildings) and fire placement, flue lengths and flue
terminations/cowls may vary. (Refer to Figure 3.3.1) Additional components may be required to complete the
installation and meet all AS/NZS 2918:2001 guidelines for flue termination.
The flue gas temperature of the Waimakariri ULEB is a lot less compared to other conventional wood burners. In
the colder environment, low flue gas temperature can create a flue draft issued. It is highly recommended that
200 inner casing of Masport flue system should be extended within 250~300mm below the flue termination. This
is particularly important for installation in the colder areas of Canterbury and south of the Canterbury region.
(Refer to Figure 3.3.2. Depending upon installation, use the required length of additional flue pipes.
AS/NZS2918:2001 guidelines should be followed for any deviation to these standard configurations. Detailed
instructions for roof penetrations etc. are supplied along with the Masport flue kit. These must be followed
closely, including the minimum flue exit height from the top of the floor protector and the minimum exit height
above the roofline or roof ridge as detailed in the instructions.
Flue installations other than strictly vertical ones are possible. See AS/NZS 2918:2001 for information on non-
vertical flues and flues passing through walls and eaves.
The flue to the flue spigot and all other flue pipe joints should be sealed using firebox cement and Stainless-Steel
Rivets. Sealing all the joints is important for achieving the desired performance of the Waimakariri ULEB.
For flue heat shields other than the 900mm Masport Double Shield, the installation clearances will be in
accordance with the guidelines specified in AS/NZS 2918:2001 for an untested flue installation.

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Figure 3.3.1
3.4 Floor Protector Requirements
The Waimakariri ULEB can be installed on any non-combustible ash floor protector with minimum dimensions
given on page 4 if this manual. Please note that the dimensions given are minimum, and we recommend using a
slightly larger floor protector size.
Please note that the Waimakariri ULEB is heavy, having a total weight of 155 Kg. The floor and the materials
used as floor protector should be strong enough to bear this load. The minimum requirements for material to be
used as floor protectors on a combustible material are
- 6mm fiber cement board (e.g., Hardies Tile & Slate Underlay) plus 8mm ceramic tiles on a firm base.
- 4mm mild steel floor protector supplied by Glen Dimplex
- Or equivalent.
3.5 Reducing Clearances
The clearances to combustible specified in section 2.0 of this manual, can be safely reduced by following
guidelines specified in AS/NZS 2918:2001 table 3.1 & 3.2.
- Heatshield should be made of non-combustible material like metal or masonry.
- Installed between the burner and the combustible wall
- With an air gap behind it and vented top and bottom
- The shield should extend a minimum of 450mm beyond the top of the appliance and extend width-wise so
that unshielded rear clearance is maintained
Clearance factors for heat shield which is within 45 degrees of the vertical
Heat Shield Construction Minimum Air Gap Dimension Clearance Factor
Single-layer of continuous material 12mm 0.4
Single-layer of continuous material 25mm 0.3
Two spaced layers of continuous material 12mm+12mm 0.2
Clearance factors for heat shield which is more than 45 degrees off the vertical
Heat Shield Construction
Minimum Air Gap Dimension
Clearance Factor
Single-layer of continuous material 12mm 0.8
Single-layer of continuous material 25mm 0.6

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3.6 Seismic Restraint
The Waimakariri ULEB must be seismically restrained, including the floor protector. The figure below gives the
holes that can be pre-drilled on the floor protector with respect to the flue center. We recommend a minimum size
of 8mm DynaBolts on the concrete floor or 8mm coach screws or toggle fasteners for wooden floors of
appropriate length. Two holes are located at the rear of the burner.

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3.7 Preparing the Burner for First Light-up
The Catalytic Combustor, Stainless Steel Flame Arrestor Plate, and Masonry bricks are packed loose and
separately along with the main burner. These items need to be installed carefully to make the burner ready
for use.
Glen Dimplex highly recommends NZHHA trained SFAIT (Solid Fuel Appliance Installation
technician) installer for installation of Waimakariri ULEB and carrying out the following initial set
up.
Step 1
–
- Install Bricks in the following configurations.
- First, install two x 208 long cut bricks on the rear wall of the firebox by locking under the brick retainer.
- Then install one x 250 long full brick on each left and the right side wall of the firebox on its side edge. Push
these bricks towards the rear of the firebox.
- Lastly, install one x 123 long cut brick each on the left and right side wall towards the front of the firebox.
Step 2
–
- The baffle is already in place. Check that the baffle is locked in place by trying to move it front to back, there is a
location tab at the rear which locks it in place, and there should be no more than a couple of mm’s movement.
Step 3
–
- The front and the rear air tubes are already in place. The front tube needs to be removed to fit the catalytic
combustor in place.
- Remove the R-clip of the front air tube.
- Slide the tube towards the right to unhook the left tab from the pin. Drop and slide the tube on the left side to
remove the tube from the firebox.
Step 4
–
- Gently lift the damper handle to the “OPEN” position and leave in that position.

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Step 5 –
- After removing the front air tube, insert the hand into the front top area of the baffle to judge and feel the various
stopper pins and plates for the combustor and the arrester plate.
- On the left wall of the firebox, there are two, front and rear stopper plates (1&2) for the combustor to slot it in.
- On the front tapered flange of the baffle, there is a rear stopper strip (3) to stop the combustor at the rear.
- On the right side of the baffle front, there is a right front stopper (4) and a right end stopper (5) pins on the top of
the baffle.
- Away from the left and right walls of the firebox, there are two more pins (6&7) on the top of the front baffle flange
to act as a stopper for the arrester plate.
Step 6
–
- Unpack the catalytic combustor. Hold the combustor vertically with both hands in front of the door opening. Hold
the combustor more towards the right so that it does not hit the left front stopper plate (1&2).
- Lift and insert the combustor into the gap between the baffle and air inlet plate. Rotate while lifting so that the top
face of the combustor lands on the angled flange of the baffle. Position the combuster against right front and right
end pins (4&5). The combustor leans forward while sitting on the angled flange of the baffle.

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Step 7
–
- Push the combustor back to the rear stopper strip (3), on the baffle. Then push it towards left so that the
combustor locks between the front and rear stopper plates (1&2) on the firebox left wall. Note these are angled
forward at the top.
- Once locked into the left side, push the right end of the combustor towards the rear so that on the right, it is
between rear strip (3) and the right front stopper pin (4).
- The combustor should be fully pushed left and be leaning forward at the top. Cross-check it is positioned correctly
Step 8
–
With the damper still in “OPEN” position -
- Take the stainless steel flame arrestor plate and hold vertically, ensuring flang with notches is at the bottom.

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- Lift the arrestor into the baffle gap until it hits the damper plate. Then position the bottom of the plate onto the
front edge of the baffle.
- Push the plate to the left and the rear. Make sure that the plate nothches locate on two location pins (6&7) on the
baffle front flange and the top of the arrestor plate is resting on the rear of the front air deflector.
Step 9
–
- Reinstall the removed front tube.
- Insert the without tab end of the tube into the hole on the right wall of the firebox. Tilt and lift the tube till the tab
on the tube can be engaged with the pin on the left wall of the firebox.
- Weave the R-clip into the small hole on the pin on the right.
- Ensure that the tube is secured by pushing the tube both towards left and right.
Step 10
– - Refer schematic below to check the configuration of all internal firebox components.
Before the first light-up, make sure that the burner is correctly installed and signed off by an
approved installer. All local council’s wood fire permission or permit requirements have been
completed satisfactorily.

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4.0 Permitted Fuels
The quality of the firewood you burn can have a considerable effect on the performance of the Waimakariri ULEB.
Moisture content, tree species, and log size are the main factors that affect the emissions that are produced by
any wood burner. The Waimakariri ULEB is designed to burn wood fuel that meets the following criteria:
- Less than 25% moisture content
- Has not been treated with preservatives or impregnated with chemicals or glue
- Is not chipboard, particleboard, or laminated board
- Is not painted, stained or oiled
- Is not driftwood or other salt impregnated wood
Burning materials that do not meet the above criteria can damage the firebox and put you at the risk of voiding the
warranty of the Waimakariri ULEB.
In NZ, radiata pine or macrocarpa is the most commonly available softwood species that are suitable as firewood.
Other hardwood species like eucalyptus (bluegum) can also be mixed with softwood to achieve longer burns.
If you are cutting your firewood, only wood that has been air-dried in a sheltered, well-ventilated stack, preferably
for at least 12 months, maybe burned in the Waimakariri ULEB. To ensure that the wood has a moisture content
of 25% or less, store it under a roof or protected against heavy rain. If you purchase firewood, buy firewood that
is well seasoned and having moisture level below 25%. We recommend “Good Wood” merchants approved by
your local council.
Do not burn coal, driftwood, treated or painted wood, highly resinous wood, such as “Old Man’s Pine,”
plastic, plywood, chipboard, garbage, flammable fluids such as gasoline, naphtha, engine oil, refuse, milk
cartons, colored or printed paper. The combustion of such materials can emit toxic, corrosive, and
hazardous fumes that will pollute the environment.
4.1 Testing Your Wood Moisture
There are several ways to confirm if the wood is dry enough.
- The wood moisture meter is the best way to check the moisture content of the wood fuel. Split a piece of
wood and then press the metering prongs firmly into the long side of a split piece to test moisture
content. 15-20% percent of moister content is ideal.
- If you are purchasing firewood, ask for dry seasoned wood and get it tested from your wood merchant.
- Dry wood weighs much less than wet wood.
- Wet wood is hard to light and will emit moisture from the ends while burning.
- Two dry pieces banged together sound hollow, and wet pieces sound solid and dull.
4.2 Recommended Log Sizes & Fire Starters
- A packet of matches or lighter
- A packet of firelighters. We recommend green firelighters made of wood waste
- Seasoned firewood about 240~270mm long in various sizes
o (3.2A) For kindling - 15-16 finely split, dry softwood (total 1.0 kg approximately)
o (3.2B) For intermediate 1 load – 4 pieces (total 1.2 kg, 300 g each approximately)
o (3.2C) For intermediate 2 loads – 4 pieces (total 2.5 kg, 625 g each approximately)
o (2D) For main load – 3 or more pieces (Total 3.0 kg, 1.0 kg each approximately)
3.2A 3.2B 3.2C 3.2D
Using well-seasoned firewood is key to maintain and improve the life of
catalytic combustor.

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5.0 Operational Sequence (For various steps refer images shown in the bracket)
5.1 Before First Light-up
- Make sure that all the packing material has been removed from the combustion chambers.
- Make sure the catalytic combustor and stainless steel flame arrestor plate are installed correctly.
Please note that the special high-temperature paint is used in the firebox that will emit some smoke as it cures
during the initial two to three sessions of running. Ventilate the house during these initial burns. While curing the
surface, heated paint softens, so do not touch hot surfaces during this process. Babies, small children, pregnant
women, elderly persons, persons subject to pulmonary hypersensitivity, and pets should avoid exposure to this
smoke. Open doors and windows and use a fan, if necessary. After these initial burns, there should be no smoke.
5.2 Cold Startup
5.2.1 Initial light-up with kindling and intermediate load
1. Gently lift the damper handle and set it to the “OPEN” position and the air slide to the “HIGH” position.
2. Stack the intermediate load made of 4 small size logs, at the base of the firebox.
3. Stack around 15-16 very small kindling pieces on top of these logs. This initial light up procedure is the
“Top-Down Start-Up” method, which reduces the particle emission during the start-up phase
considerably.
4. Place the firelighters on top of kindling and light the fire. We recommend green firelighters made of wood
waste.
(1) (2) (3) (4)
5.2.2 Intermediate load 2
5. Keep the door ajar slightly.
6. Close the door approximately after 10 mins making sure that the kindling is well alight. Do not change
the damper or air slide position at this stage. At this stage, the combustion gases are passing over the
combustor and pre-heating it.
7. After 15~17 mins, once the small logs are more than 50% burnt, open the door to add 2nd intermediate
load, i.e., 4 pieces of medium firelogs. Close the door and continue to lite the fire on the “HIGH” air slide
setting.
8. After 20~22 mins, gently turn the damper handle to the “CLOSE” position. By now, the combustor will
be preheated to the required temperature. Closing the damper will divert all combustion gases through
the combustor only. The combustor will start glowing in a few mins.
(5) (6) – 10 mins (7) – 15~17 mins (8) – 20~22 mins
DO NOT LEAVE BURNER UNATTENDED DURING THIS INITIAL LIGHT-UP PERIOD
ALWAYS SWITCH DAMPER TO “OPEN” POSITION BEFORE OPENING THE DOOR

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5.2.3 Main load and controlling output
9. Around 40~45 mins, when the intermediate load 2 is burnt more than 50%, switch the damper to the
“OPEN” position and open the door for loading the main load.
10. Add 3 large size logs and close the main door.
11. Once the main load is fully lit, switch the damper to “CLOSE” positions.
12. Once the large size logs are fully alight, the burner is ready to adjust the output by operating the air slide.
At this stage, the burner combustion is stabilized, and catalyst is active and unburnt particles in the
combustion gases are getting burnt while passing through the glowing combuster
13. Adjust the air slide to the medium of low position to control the output.
(9) – 40+mins (10) (11) (12)
Always open the door in three stages :
1. Switch the damper handle to “OPEN” position, air slide to “HIGH” setting and
wait for at least 30 secs
2. Unlatch the door and keep it slightly ajar for 15~20 seconds
3. Then open the door fully.
Always switch the damper handle gently and gradually.
This practice is important to avoid puff of smoke coming into room or damage to the
catalytic combustor.
5.2.4 Refueling and Shut-down
14. Before opening the door for reloading, make sure that the damper handle is switch to the “OPEN”
position and air slide is on the “HIGH” setting. Reload one or two logs at a time. After reloading, keep
the air slide to the “HIGH” position and keep damper “OPEN” till logs are fully alight.
15. To shut down the burner, let the fire extinguish and leave the burner doors closed until it has cooled down
DO NOT EVER USE THE BURNER WITHOUT
THE CATALYTIC COMBUSTOR AND FLAME ARRESTOR PLATE.
Note – The timing given for various steps of the light-up process may vary slightly depending upon wood, log
length. After a couple of burns, the user will be able to judge for themselves.

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6.0 Catalytic Combustor
6.1 How it works
The Waimakariri ULEB uses a catalytic combustor to reduce emissions more effectively and control burn rates.
This combustor is fitted in the front top portion of the firebox, above the front baffle in the exhaust gas stream.
This combustor is made of thin high-grade stainless steel sheets encased in a thicker outer body and is coated
with a hi-tech chemical composition. The particles within the combustion gases burn off when they pass through
this coated combustor.
6.2 Best practices to enhance the life of catalytic combustor
The catalytic combustor is the most critical part of the Waimakariri ULEB. The following precautions must be
taken while operating the Waimakariri ULEB.
- Always use well-seasoned natural firewood. Read section 4.0 carefully for permitted wood fuels for the
Waimakariri ULEB. Never use wet, painted, highly resinous, or driftwood. Never burn garbage or plastic
material.
- Keep the damper open until the catalytic combustor becomes sufficiently hot (approximately 20~25 mins).
During the start-up phase, the lower firebox temperature creates a larger volume of unburnt particles. These
particles will tend to adhere to the combustor’s surfaces due to insufficient temperature. If the damper is
closed during start-up, these may block the combustor and make it less efficient.
- Avoid leaving the door open for a long period. Too much air will cool the combustion process and the flue,
which can result in the combustion gases spilling out of the door.
- Always make sure that the stainless steel flame arrestor plate is installed in front of the combustor. Direct
exposure of flames to combustor can damage the overall integrity of the combustor.
- Regular monitoring and cleaning of the combustor are essential to maintain the combustor’s integrity and
effectiveness. Read the following sections 6.3 & 6.4 for monitoring and cleaning of Waimakariri catalytic
combustor.
- Handle your combustor with care – Take care while handling the combuster so as not to damage the
combustor plates as this could reduce the flow through the combustor.

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6.3 Inspection of the Catalytic Combustor
CAUTION: Inspect the combustor only when the burner is cold.
The catalytic combustor used in the Waimakariri ULEB should be inspected periodically to ensure that it is not
clogged and or damaged. A non-functioning combustor will affect heating efficiency and will increase emissions.
Soot or darker granular material generated due to improper operation or poor quality fuel can lead to clogging of
the combustor. Reduced heat output or sluggish performance are typical signs of clogging. The following are
the steps to monitor and check the condition of the combustor periodically:
6.3.1 Visual Inspection while running the fire
- During regular operation, when the main load of big fire logs is fully alight, ensure the damper is in the
“CLOSE” position. This fully stabilized state is achieved around 40~60 mins. You can see the catalytic
combustor glowing parts through the perforated flame arrestor plate. To avoid exposure to radiating heat
from the door, we recommend using a mirror from a lower level to view the glowing combustor.
- The glowing combustor is a sign of combustor working.
- Also, note that at the end of the burn cycle, the combustor may not glow as there will be no combustibles in
the burner to activate the catalyst.
- If the combustor does not glow during normal operation, go to the next step
6.3.2 Visual inspection by removing the flame arrestor plate
- Using the tool provided with the Waimakariri ULEB, remove the flame arrestor plate and inspect the
combustor with the help of a small torch.
- If the surface of the combustor is clean without any signs of clogging with fly ash or creosotes, put back the
flame arrestor plate and continue to use the burner and look for other signs.
- If there are visible signs of clogging, Use methods described in section 6.4 to clean the clogged combustor.
- If the clogging is due to tarry or granular brown substance, use the “Hot Burn technique” described in section
6.5 to burn off the clogging.
6.4 Removal of Catalytic Combustor
- The first step is to remove the flame arrestor plate. Use special tool supplied with your burner to remove the
flame arrestor plate. Insert the tool into the holes which are at the center of the flame arrestor plate and push
the plate upwards. Alternatively, you can use a medium-size flat screwdriver.
- Slowly push the plate upwards so that it disengages from it’s locating tabs on the front baffle and dangles
vertically on the tip of the tool.
- Gently lower it down out of the firebox and keep it in a safe place.
- Next, remove the front air tube.
- Remove the R-Clip on the left. Then push the tube towards the right to disengage the tab.
- Tilt and drop down the tube from the left side, till it comes out of the hole on the right of the firebox.
- Next, put two hands inside and over the catalytic combustor.
- First, push the combustor towards the right so that it comes out of left stopper plates fully.
- Then roll it through 900 in the forward direction on the baffle flange. Gently pull it forward till it tips over the
front edge of the front baffle. Care should be taken so that the combustor does not dropdown.
- Once tipped over, slowly and gradually take it out of front baffle and front air deflector gap. Keep it on a flat
surface for inspection and cleaning.
6.5 Cleaning of Catalytic Combustor
Normally the catalytic combustor in the Waimakariri requires little or no maintenance. It generates high
temperatures when active and therefore is self-cleaning. However, should the combustor becomes covered with
soot or creosote, it can be cleaned using the following methods.
Method 1 – In-situ Cleaning using a brush
- If the combustor mesh is covered or filled up with fly-ash, use a paint-brush or soft-bristled brush and dust the
combustor.
- Never use a wire brush or anything abrasive. Never use high-pressure air to clean as this may damage the
fine plates of the combustor.

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Method 2 – In-situ Cleaning using a vacuum cleaner
- Use a vacuum cleaner in low to medium suction mode to remove any build-up of fly-ash accumulated on the
surface of the combustor.
- Never use high pressured air to blow the cells of any build-up. It can damage the cell walls.
Both methods 1 & 2 should be attempted without removing the combustor from the burner. Remove the
combustor for closer inspection only if the “Hot Burn” technique doesn’t burn off all the clogging.
Method 3 – “Hot Burn” technique
- Make sure that natural, good quality, dry wood fuel is used for this process.
- Light up burner following steps in section 5.0.
- After loading the main load, i.e., 2~3 large logs are well alight continue to keep the air slide on “HIGH”
positions for 10~15 mins. This process will create a ‘Hot’ fire.
- Position the damper handle midway between OPEN & CLOSE position and keep it burning with this setting
for 30~40 mins.
- The clogged particles will burn off during this Hot-Burn period and will help to clean the clogged combustor.
Never use cleaning solvents or spray to clean catalytic combustor. It can damage the
combustor and other parts of the Waimakariri ULEB. The use of such a method will
void the warranty of the Waimakariri ULEB.
6.6 When to replace the catalytic combustor
The Waimakariri catalytic combustor will degrade with use and will need to be replaced accordingly. The life of
the combustor will depend upon usage, type of fuel burnt, and care taken during operations and maintenance.
Major signs of an aged combustor
- Lack of performance
- Less output
- Increased fuel consumption
- Visual deterioration of the combustor plates.
- Visual increase in emissions
Before concluding that the combustor needs replacement, ensure that you are using your burners with all the tips
given in section 6.2. Mainly the correct fuel and the damper operation. Further, inspect the combuster carefully
by following steps in section 6.3 & 6.4 and if needed, clean the combustor by following steps in section 6.5
The ultimate and important way to check the status of the combustor is to check emissions coming out of your
chimney. You can get an indication of whether the catalyst is working by comparing the amount of emissions
leaving the chimney when exhaust gases are going through the combustor, i.e., when damper is “CLOSED,” to
the amount of emissions leaving the chimney when the emission is routed over the combustor, i.e., when the
damper is “OPEN.” For checking emissions, strictly follow the procedure given below:
- Make sure that natural, good quality, dry wood fuel is used for this process.
- Light the stove by the following instruction in section 5 and run it for at least 80~90 mins
- Load a couple of large size logs and wait for few mins till they are alight.
- Switch the damper to the “OPEN” position, go out and observe the emissions leaving the chimney.
- Switch the damper to the “CLOSE” position and again observe the emissions leaving the chimney.
Significantly less emissions are expected when the damper is in the “CLOSE” position.
- Follow the above steps at least 2~3 times before contacting your dealer for replacement.
Follow steps 4, 5 & 6 outlined in section 3.7 to replace the combustor.
A non-functioning combustor should be replaced with a new catalytic combustor
sourced from Glen Dimplex New Zealand.

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6.7 Conditions of Catalytic Combustor
Waimakariri combustor pictures in different states:
New
combustor
Combustor
fitted
inside the
firebox
Flame
arrestor
plate
installed
Glowing
combustor
inside the
firebox
The tool
provided
for
removal of
arrestor
plate
Damaged
combustor
Clogged
combustor

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6.8 Maintenance of Other Waimakariri Parts
Further sections will describe the systematic process of carrying out servicing of different parts of the firebox, and
flue. Replace parts only with genuine GLEN DIMPLEX spare components:
1. Door and other seals
2. Firebox bricks & Baffle
3. Flue inspection and cleaning
6.8.1 Door and Other Seals
Door seals of the main door should be checked and, if required, will need replacement periodically depending
upon the usage of the Waimakariri ULEB.
Do not operate the burner If the door seal is damaged or missing. Excessive air input
can cause overfiring and damage burner parts, including vital catalytic combustor. If
any part of the burner or flue system is glowing, the burner is being over-fired.
6.8.2 Firebox Masonry Bricks
The masonry bricks in your Waimakariri ULEB are an important part of the burner to achieve clean and efficient
burn. These bricks are likely to degrade with time and will need to be replaced accordingly. The life of the bricks
will depend upon usage, type of fuel burnt, and care taken during operations and maintenance. The bricks are
held in place using the brackets welded to the firebox sides and the rear. Due to the high temperature in the
firebox, the bricks may crack with use, and this is regarded as a normal occurrence. If the bricks crack but remain
in place, it will not affect the performance of the fire and subsequently can continue to be used. The bricks should
be replaced only when they are damaged enough in place and cannot perform their intended task. Refer section
3.7 for location and sequence of assembly of bricks in the firebox of the Waimakariri ULEB.
After removing the old bricks, remove all the ash from the firebox by removing the ash plug and collect it in the
ash drawer using a brush. For pedestal or leg models, scoop out the ash using a suitable tools. Refer Step 1 in
section 3.7, for replacing the old bricks.
6.8.3 Flue Inspection & Cleaning
Flue system should be checked at least once a year depending upon usage and, if needed, be swept by a
professional chimney sweep. Do not use chemical chimney cleaners. Check the flue sections nearest the firebox.
If a flue system is becoming excessively blocked or needs frequent cleaning, investigate the installation, fuel, and
operation of the burner with the help of a professional.
Refer section 6.4 for carrying out the following steps:
- Remove the flame arrestor plate using the special tool provided
- Remove the front and the rear air tube
- Remove catalytic combustor.
- To remove the baffle, lift and tilt the baffle from either left or right side till it sides off the side baffle supports.
Bring it down within the firebox and then take it out of the door at an angle.
- This will enable to drop and collect all the chimney dirt into the firebox without removing the main flue pipe.
Once chimney sweep operation is complete, clean the firebox chamber properly and put back the baffle, rear air
tube, catalytic combustor, flame arrestor plate, and the front tube.