Esse Bakeheart User manual

Bakeheart &
Warmheart
Wood Fired Cooking Stoves
THIS APPLIANCE MUST BE COMMISSIONED BY A REGISTERED INSTALLER OR PLUMBER
THE WARRANTY CARD MUST BE RETURNED TO ENSURE GUARANTEE VALIDITY

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SAFETY NOTES
oProperly installed, operated and maintained, this appliance will not emit
fumes into the dwelling. However, occasional fumes from de-ashing and
re-fuelling may occur.
oPersistent fume emission is potentially dangerous and must not be
tolerated. If fume emission does persist, open doors and windows to
ventilate the room. Let the fire burn out or eject and safely dispose of fuel
from the appliance. Once the fire is cold, check the flue and chimney for
blockages and clean if required. Do not attempt to relight the fire until the
cause of the fume emission has been identified and corrected.
oSeek expert advice if necessary.
oAn adequate air supply for combustion and ventilation is essential. Air
openings provided for this purpose must not be restricted.
oShould it be likely that children, aged, or infirm people approach the
appliance whilst the fire door is open, then a fireguard should be used.
oDo not to sit or stand on theappliance or use it as a ‘step-stool’ for access
to cupboards or shelves etc. above the appliance.
oAvoid the use of aerosol sprays in the vicinity of the cooking stove when
it is in operation and do not heat any unopened airtight containers.
oEnsure that precautions are taken when deep fat frying, never leave the
appliance unattended and ensure you have fire safety equipment
available, such as a fire blanket, in case of emergency.
oWhen operating the cooking stove use the tools provided and follow
these instructions carefully.
oAttention is drawn to the fact that fire cement is caustic and hands must
be washed thoroughly after use.
oThe appliance is heavy and caremust be taken during handling.
oThese instructions give a guide for the installation of the appliance but in
no way absolve the installer from responsibilities to conform to AS/NZS
Standards, in particular AS/NZS 2918:2018,relating to the installation of
solid fuel appliances. All local regulations including those referring to
national standards need to be complied with, when installing this
appliance.

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TableofContents
SAFETY NOTES ...........................................................................................2
INSTALLATION INSTRUCTIONS........................................................................4
DATA LABELS .............................................................................................4
GENERAL SAFETY INFORMATION................................................................5
DIMENSIONS AND CLEARANCES .................................................................6
TECHNICAL INFORMATION.........................................................................7
CHIMNEY AND FLUE INFORMATION............................................................8
INSTALLING THE APPLIANCE.....................................................................13
HOT WATER SYSTEM................................................................................14
COMMISSIONING THE APPLIANCE............................................................16
REPLACEMENT PARTS...............................................................................16
COMMISSIONING CHECKLIST....................................................................18
OPERATIONAL INSTRUCTIONS......................................................................19
INTRODUCTION........................................................................................19
BEFORE USING YOUR COOKING STOVE.....................................................19
YOUR COOKING STOVE.............................................................................20
LIGHTING AND CONTROLLING THE FIRE....................................................22
NOTES ON WOODBURNING......................................................................23
LONG TERM SHUTDOWN .........................................................................24
FIREWOOD...............................................................................................24
COOKING WITH THE COOK STOVE ............................................................27
EXTENDED WOODBURNING .....................................................................28
CLEANING AND MAINTAINANCE...............................................................29
CONDITIONS OF GUARANTEE ...................................................................31
EXCLUSIONS.............................................................................................31
CUSTOMER CARE .....................................................................................32
Servicing..................................................................................................33

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Bakeheart & Warmheart
INSTALLATION INSTRUCTIONS
DATA LABELS
Figure 1 Bakeheart Data Label
Figure 2 Warmheart Data Label

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GENERAL SAFETY INFORMATION
Clearances from combustible materials are 130 mm from the sides and 225 mm
from the rear for the Bakeheart, and 350mm from the sides and 125mm from
the rear for the Warmheart.
Clearances from non-combustible materials are 25mm from the rear of the cook
stove and 10mm from the side fro both the Bakeheart and the Warmheart.
It is recommended that a smoke alarm and appropriate fire safety equipment
such as a fire extinguisher and fire blanket are installed in the kitchen as a safety
precaution and also a carbon monoxide detector.
An adequate air supply for combustion and ventilation is required. A purpose
provided air vent maybe necessary. Air openings provided for this purpose must
not be restricted. An external air kit is available.

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DIMENSIONS AND CLEARANCES
Figure 3 Bakeheart Cooking Stove
Figure 4 Warmheart Cooking Stove

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Figure 5 Bakeheart Minimum Clearance to Combustibles
TECHNICAL INFORMATION
Cut your logs to the approximate size shown in Figure 6 to minimise the need
for refuelling.
Figure 6 Approximate Size of Logs

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Technical Information
Nominal heat output
5.0kW
Minimum chimney draught
12Pa
Combustion air
requirements
29m3/h
Mean flue gas temperature
170oC
Weight of appliance
Bakeheart:
Warmheart:
192 kg
154 kg
Flue gas mass flow
10g/s
CHIMNEY AND FLUE INFORMATION
The successful operation of the cooking appliance relies on the adequate
performance of the chimney to which it is connected. The following chimney
guidelines must be followed:
oIt should have an internal cross section of no less than 320cm2 (200mm
dia.) (If a flue liner is used, it should be 150mm (6’’) diameter and be made
of suitable material for burning wood). A Flue with a diameter of 150mm
(6’’), is required to connect to the cooker.
oVoids in the chimney should be avoided, as these will prevent a steady
flue draught. The appliance flue pipe should pass beyond the narrowing
of the chimney.
oTerminate at least 1m above roof level so that the chimney does not
terminate in a pressure zone.
oIf the appliance is installed as a freestanding appliance, it should not
support any part of the chimney.
oBe free from cracks, severe bends, voids, and obstructions.
oBe connected to this one appliance only.
oNew chimneys must be in accordance with local regulations.
oThe chimney must be capped to prevent ingress of rain.
oA flue/chimney access point is required so that the state of the chimney
can be checked and any fallen soot removed.
oExternal flues must be insulated to prevent heat loss.
oDo not fit an extractor fan in the same room as the appliance.
oBe a minimum 4.6m high from top of the cooker to the chimney pot.

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oIt is recommended that an inspection hatch is fitted to the chimney as
this will make future cleaning easier.
oA single wall starter length with a single to twin wall adapter will be
needed to use twin wall insulated flue. The stove will need to be moved
away from the wall to accommodate use of twin wall flue.
NOTE
The chimney/flue to which this appliance is being connected must be swept
and examined for soundness prior to installation. Remedial action should be
taken if required, seeking expert advice if necessary. Where the chimney is
believed to have served an open fire installation it is possible that a higher
flue gas temperature from a closed appliance may loosen deposits that were
firmly adhered, with the consequent risk of flue blockage. It is therefore
recommended that the chimney be swept a second time within a month of
regular use after installation.
Flue Draught
The chimney can be checked before the appliance is installed with a smoke
match. If the chimney doesn’t pull the smoke, it may suggest the chimney needs
attention.
This test is only a guide as an apparently poor flue may improve once the
appliance is installed, lit and the flue is warmed. Once the appliance is installed
a flue draught reading should be taken as detailed below.
Two flue draught readings should be taken, one with the appliance at minimum
burning rate and one at maximum burning rate. The flue draughttest hole must
be drilled in the flue pipe as close to the appliance as possible and before any
flue draught stabiliser.
Minimum reading: The appliance should be lit and allowed to warm the flue
thoroughly. Close the air controls, and ensure firebox door is fully closed. Allow
the burning rate to become steady. The flue draught reading should now be
taken; the minimum required is 12 Pascals [Pa] (0.05’’ w.g.).
Maximum reading: The air controls can now be opened to allow the appliance
to burn at maximum rate. Take a flue draught reading.
Ideally, the flue draught readings should range between 12Pa, 0.12mm (0.05’’
w.g.) and 25Pa, 2.5mm (0.1’’ w.g.). Any readings significantly outside this range
may indicate the need for remedialaction. Low flue draught symptoms: difficult

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to light and smoke coming into the room. High flue draught symptoms: fuel
burns away very quickly, overfiring which may damage the appliance &
invalidate the warranty.
A flue stabiliser can be fitted to reduce the draught through the appliance if the
draught may exceed 25Pa. The flue stabiliser should be fitted in the same room
as the appliance and be the same size as the flue pipe. Consult building
regulations regarding additional ventilation.
A fan flue booster can also be fitted if the flue draught is poor. This should be
fitted according to the instructions supplied with the booster. An electrical
supply will be needed.

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Table 1 Flue Draught Trouble Shoothing Guide
Low flue draught symptoms: difficult to light and smoke coming into room
CAUSE
REMEDY
Cold chimney
Line the Chimney
Chimney too short
Extend the chimney
Down draught
Relocate/extend chimney terminal. Fit an
anti-down draught cowl
Chimney diameter too large
Line the chimney
Chimney obstruction
Clear/sweep the chimney
Restricted air supply
Check for competing draughts (other
chimneys, extractor hoods/fans). Fit an air
vent if the room is sealed.
High flue draught symptoms: fire difficult to control, fuel will not last, stove
too hot, stove damage, chimney fire
CAUSE
REMEDY
External wind conditions
combined with chimney
terminal
Fit stabiliser cowl
Fit flue draught stabiliser
Figure 7 Chimney Location and Flue Performance

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INSTALLING THE APPLIANCE
Flue Connection
The flue pipe used to connect the appliance to the chimney is 6’’ (150mm) in
diameter. (The flue connection is on the top of the appliance, in the centre at
the back.)
Important Installation Notes
oThe installation must allow access for adequate chimney sweeping and
flue cleaning.
oAvoid using bends greater than 45º to the vertical. All flue pipe sections
should be as close to the vertical as possible.
oAll joints in the flue system must be effectively sealed.
oAll flue sockets must face upwards. On completing the installation of the
appliance, the chimney, hearth and walls adjacent to the cooker must
conform to local or national regulations currently in force (AS/NZS
2918/2018).
oAir inlet grilles should be positioned so that they are not liable to blockage.
oAn air extraction device shall not be used in the same room as the
appliance unless adequate additional ventilation is provided.
oA flue cleaning hatch should be fitted to provide access for cleaning the
flue and chimney.
oCheck the appliance for soundness of seals between main components
and that all supplied parts and fittings are correctly fitted.
oEnsure the appliance is left operational and hand over the operating
instructions and operating tools supplied.
oBefore leaving the installation demonstrate the operation of the
appliance to the user. Explain all controls and flue way access for cleaning.

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HOT WATER SYSTEM
A. If a boiler is fitted to this system it must be connected to a heating
system otherwise the warranty is void.
B. There are two connections, both 1” BSP Female on the left hand side.
Follow general notes below.
C. The D boiler is of mild steel construction for use on an open vented
indirect system. A domestic Stainless Steel boiler can be purchased from
your supplier for use on an open vented direct system if required.
D. General Notes on Water System: -
1. The cooker will produce hot water at differing rates depending on
how it is operated. Heating control is manual, no thermostat is
fitted.
2. The system must be designed to cope with loads between the
maximum and minimum output. There must be sufficient gravity
load to absorb 250L low pressure hot water output.
3. This unit is not approved for use with hydronic heating systems.
4. Whichever system is chosen the layout must follow established
heating engineering practice. To avoid trapping air in the boiler a
1” BSP connection must be used on the flow and return tapping,
and any reduction in pipe size thereafter being made on a vertical
rising pipe. The cooker must be level when fitted and the flow
pipe must rise from the boiler.
5. The cylinder and pipe work should be lagged to avoid heat loss.
6. The static head must not exceed 18 meters.
7. A drain cock should be fitted to the lowest part of the circuit.
8. The total water capacity of the boiler is 4 litres.
9. A heat leak radiator should be fitted to absorb any excess heat
that may be produced.
10.The system must be open vented.
11.It is recommended that the system is sealed with hemp & paste or
equivalent which can withstand temperatures exceeding 100oC

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Figure 8 DHW Gravity Heating System

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COMMISSIONING THE APPLIANCE
oEnsure the flue draught is compliant with AS/NZS 2918:2018
oCheck ventilation
oEnsure fire bricks, baffles, and theafter burner are in the correct position
oCheck that all doors fit and seal correctly
oIf applicable check plumbing circuit
oCheck no extractor fan, other appliance or other flue interferes
oComplete commissioning card and return to ESSE to validate warranty
REPLACEMENT PARTS
Figure 9 Firebrick Layout

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Table 2 Firebrick Part Numbers
Item No.
Part Number
Description
Qty.
1
990-009
Rear Brick
2
2
500-IH-226
Side Rear Brick
2
3
500-IH-227
Side Front Brick
4
4
990-004
Top Back Brick
1
5
500-IH-235
Top Front Brick
1
6
990-009B
Base Brick
1
7
990-009C
Front Brick
1
Fire Door Glass
Combustor
WCKCU-012
Side Brick
500-IH-226
Side Brick (with shelf runners)
500-IH-227
Top Front Brick
500-IH-235
Top Back Brick
990-004
Base Brick
990-009B
Rear Brick
990-009
Baffle
PLUS-010-7
Oven Shelf
PLUS-011-REV2

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COMMISSIONING CHECKLIST
To assist with any potential guarantee claim please complete the following
information:-
To be completed by the installer.
Dealer the appliance was purchased from:
Name:
Address:
Telephone No:
ESSENTIAL information:
Date Installed
Model Description:
Serial No:
Installation Engineer:
Company Name:
Address:
Telephone No:
Commissioning Checks –to be completed and signed:
Has the use of the appliance,
operation and controls been
explained?
Yes
No
Instruction book handed to the
customer?
Yes
No
Signature:………………………………………………..
Print Name:…………………………………………………
A CERTIFICATE OF COMPLIANCE OF INSTALLATION MUST BE SENT WITH THE
WARRANTY CARD

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Bakeheart & Warmheart
OPERATIONAL INSTRUCTIONS
INTRODUCTION
Thank you for choosing an ESSE cooking stove. Please read these instructions
carefully to ensure your safety and enjoyment whilst using this product.
Correctly installed and operated, your ESSE cooking stove will provide faithful
service indefinitely. We feel certain that like countless ESSE owners since1854,
you will be truly satisfied by the warmth and comfort it will provide and the taste
of your food cooked within its oven.
BEFORE USING YOUR COOKING STOVE
Ensure that any plastic film used to protect surfaces has been removed (e.g.
from the inside of the oven door). The hotplate has been painted at the factory
to prevent rusting and therefore will require wiping with a damp cloth and
drying with a tea towel or kitchen roll.
During the first few operations of the cook stove there may be some ticking and
fumes emitted. This is normal and part of the initial expansion & material curing
process.

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YOUR COOKING STOVE
Figure 10 Bakeheart Cooking Stove
Figure 11 Warmheart Cooking Stove
Figure 10 and Figure 11 show the cooking stoves and their controls. The fire is
loaded, refuelled, and emptied through the large glass fire door.