Esse Ironheart EW, Ironheart EWB, Bakeheart, Warmheart User Manual
Ironheart
Models EW & EWB
Wood Fired Cooking Stove
THIS APPLIANCE MUST BE COMMISSIONED BY A HETAS REGISTERED ENGINEER
THE WARRANTY CARD MUST BE RETURNED TO ENSURE GUARANTEE VALIDITY
Page 2
EW-I02-070319
Table of Contents
OPERATING INSTRUCTIONS ............................................................................... 3
INTRODUCTION .............................................................................................. 3
BEFORE USING YOUR COOKING STOVE .......................................................... 3
YOUR COOKING STOVE .................................................................................. 4
LIGHTING AND CONTROLLING THE FIRE ......................................................... 6
NOTES ON WOODBURNING ......................................................................... 10
LONG TERM SHUTDOWN ............................................................................. 11
FIREWOOD AND THE WOODBURNING PROCESS.......................................... 11
COOKING WITH THE COOK STOVE ............................................................... 16
EXTENDED WOODBURNING ......................................................................... 18
CLEANING AND MAINTAINANCE .................................................................. 19
CONDITIONS OF GUARANTEE ...................................................................... 21
EXCLUSIONS ................................................................................................. 21
CUSTOMER CARE ......................................................................................... 22
SAFETY NOTES .............................................................................................. 22
INSTALLATION INSTRUCTIONS ......................................................................... 24
GENERAL SAFETY INFORMATION ................................................................. 24
THE CLEAN AIR ACT 1993 AND SMOKE CONTROLLED AREAS ....................... 25
DIMENSIONS AND CLEARANCES .................................................................. 26
CHIMNEY AND FLUE INFORMATION ............................................................ 28
INSTALLING THE APPLIANCE ........................................................................ 31
HOT WATER SYSTEM (EWB MODELS ONLY) ................................................. 33
COMMISSIONING THE APPLIANCE ............................................................... 35
REPLACEMENT PARTS .................................................................................. 36
COMMISSIONING CHECKLIST ....................................................................... 38
TECHNICAL INFORMATION........................................................................... 39
Page 3
EW-I02-070319
Ironheart
OPERATING 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 since 1854,
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 protective packaging used to protect surfaces has been
removed. The hotplate has been oiled 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.
Page 4
EW-I02-070319
YOUR COOKING STOVE
Figure 1 Ironheart Cooking Stove
Figure 1 show the cooking stove and it’s controls. The fire is loaded, refuelled,
and emptied through the large glass fire door.
A flue damper is fitted in the bottom of the flue box and is in the open position
when lever is pointing to rear of cooker. This is used on initial light up and also
gives a cooler oven temperature when open. It can also help to control excessive
flue draught. This is done by pointing the lever to the front of the cooker.
The controls are operated in the following ways:
Primary Air Control
Slide LEFT to open
Secondary Air Control
Slide LEFT to open
Oven Damper
Turn ANTI-CLOCKWISE to open
Flue Damper
PUSH back to open
Page 5
EW-I02-070319
Included inside your cooking stove is a multi-purpose Operating Tool – for
adjusting the air supply and operating the door. A glove is also provided to
protect the user’s hand. (Figure 2)
WARNING
Do not place towels on the handrail, keep pets and children away and ensure
that any curtains near the appliance cannot ignite even when displaced.
Surfaces will be hot when in use.
An extractor fan MUST NOT be fitted in the same room as the appliance.
Figure 2 Operating Tool and Glove
Page 6
EW-I02-070319
LIGHTING AND CONTROLLING THE FIRE
Figure 3 Multi-fuel Grate Firebox Parts
Figure 4 Wood Burning Firebox Parts
Page 7
EW-I02-070319
Before lighting the fire ensure that all parts are in the correct position. For multi
fuel use see Figure 3.
The Ironheart may be configured to a wood burning only specification by
removing the grate and ashpan and substituting a steel wood burning box (see
Figure 4). This increases the firebox volume and by facilitating an ash bed can
extend reloading intervals.
Ensure both air controls are in the open position by moving the controls to the
LEFT, the oven damper is opened by rotating the control ANTI-CLOCKWISE, and
the flue damper opened by pushing the lever tot the REAR of the cooker.
Open the fire door and lay two logs along the base of the fire box forming a
space between them.
Figure 5 Logs Laid in Fire Box
Page 8
EW-I02-070319
Place a firelighter in the space and surround with a small amount of kindling.
Figure 6 Fire Lighter and Kindling in Place
Lay a third log over the top of the space perpendicular to the other logs.
Figure 7 Final Log in Position
When you are ready to light the fire all that needs to be done is light the
firelighter.
Once the fire has been lit leave the door partially open to allow additional
airflow until the fire has become established. When the fire is established the
fire door can be fully closed. The air controls can be moved towards the closed
position once the sooting has burnt off the brickwork. To control the fire when
burning wood the secondary air control should be used, the primary air control
should be kept closed. The primary air control should be used when burning
smokeless fuels with the secondary control kept open where possible to prevent
the window sooting up.
Page 9
EW-I02-070319
Figure 8 Oven Damper Controls
Once the fire has been established the oven damper control may be used to
regulate the oven temperatures along with the burning rate of the cookstove.
WARNING
When the cooking stove is running ALL HANDLES become hot and the
operating tool or glove provided should be used to open or close the doors
(Figure 2)
The burning rate of the stove can now be regulated by the rate at which fuel is
added and use of the air control. The maximum amount of fuel to be loaded
during normal operation is 2kg per hour in order to achieve nominal heat output.
NOTE
This appliance is not an incinerator and only dry well seasoned wood or
approved fuel should be used.
If the cook stove is being used primarily to heat the room it is recommended
that the bolster lid is kept in the raised position to allow heat from the hotplate
to radiate into the room.
Page 10
EW-I02-070319
When refuelling the cook stove it is recommended that the logs are placed
running front to back as in Figure 5 as this leads to the cleanest combustion.
Before lighting a full fire in the cook stove for the first time it is recommended
that 3 smaller fires are lit first to ensure that any moisture is driven out.
WARNING
EWB MODEL ONLY: Do not light the cook stove if there is a possibility that
any part of the boiler loop is frozen.
NOTES ON WOODBURNING
Wood burns most efficiently when the air for combustion is supplied from above
the fire bed. This air supplies the oxygen necessary for the volatile gasses given
off by the wood as it is heated to combust which increases efficiency and
reduces heat being wasted up the chimney.
Running the cooking stove with the air control open will provide oxygen for the
wood to burn on the fire bed and should be used to control the fire when lighting
or refuelling. The cooking stove should ideally be run with the air control in the
closed position for the majority of the time in use. If the fire appears to die down
too low then opening the air control slightly for a short period can help revive it.
To get the best results from your cooking stove it is recommended that a wood
stove thermometer be fitted to the flue pipe above the cooking stove. This
allows you to monitor the temperature of the flue gasses leaving the cook stove.
Below 115oC
This is below the condensation point of wood gasses and may cause the buildup of tar in the chimney, dirty the fire door glass and result in the inefficient
burning of fuel.
115oC – 260oC
The flue gasses should be in this temperature band for the safest, most efficient
operation of your cooking stove.
Page 11
EW-I02-070319
Above 260oC
Too hot. Heat will be wasted up the chimney. Excess heat may damage the
cooking stove or ignite an existing accumulation of tar resulting in a chimney
fire. In the event of a fire, close the air controls on the appliance and call the fire
brigade for assistance.
LONG TERM SHUTDOWN
If the cooking stove is to be shut down for long periods i.e. during summer
months or if the appliance is in a second home that is not used all the time,
precautions should be taken to avoid damage from condensation and corrosion.
First ensure that the cooking stove is fully cleaned and all ash removed. The
ovens and hotplate can then be treated with a light coating of flax oil to help
prevent moisture damaging the surfaces. The air control is to be left in the open
position (Error! Reference source not found.), the doors slightly ajar, and the
bolster lid left raised to allow for ventilation.
FIREWOOD AND THE WOODBURNING PROCESS
Seasoning and Storing Firewood
Wood, which has recently been cut and is still full of sap and water is known as
"green" wood.
Green wood will generally burn poorly and inefficiently, because it can have over
50% water in its cells. It may be hard to light, smoulder, not put out any heat
and cause more than the usual amount of creosote to build up in your chimney.
So your aim should be to dry the wood out to below 20% moisture content, this
process is called seasoning. As the name implies, you should store your wood
for a season or so, while it dries, but there are things you can do to speed up
seasoning by cutting the wood now rather than just before you use it.
Page 12
EW-I02-070319
Wood is composed of bundles of microscopic tubes that were used to transport
water from the roots of the tree to the leaves. These tubes will stay full of water
for years even after a tree is dead. This is why it is so important to have your
firewood cut to length for 6 months or more before you burn it, it gives this
water a chance to evaporate since the tube ends are finally open and the water
only has to migrate a small distance to escape. Splitting the wood helps too by
exposing more surface area to the sun and wind, but cutting the wood to shorter
lengths is of primary importance.
Here’s how you can tell whether your wood is ready or not: Well seasoned
firewood generally has darkened ends with cracks or splits visible, it is relatively
lightweight, and makes a clear "clunk" when two pieces are struck together.
Green wood on the other hand is very heavy, the ends look fresher, and it tends
to make a dull "thud" when struck.
Another thing you can do to help is store your wood properly. Store it off the
ground by building the pile on some longer logs (or whatever method you can
devise). A shed or shelter with an open side makes an ideal storage place, as the
air can circulate around the logs and help to dry them out. Unventilated spaces
or plastic tarps, which never get taken off will prevent the drying and
evaporation process and cause moulds and rot. So, if a tarp is your only option,
take it off frequently to air the wood on fine days. And remember to put it back
on again. Seasoned firewood will reabsorb large amounts of water if exposed to
rain, snow and excessive dew, which is liable to make it rot and be unfit for
making a good fire.
When you build up a store of firewood, remember that the wood may start to
deteriorate after 4 to 5 years, although this is of course variable and depending
on storage conditions and species involved.
What Type of Wood is Best?
The difference between 'hard' and 'soft' woods is the density of their cells or
fibres.
As a general rule, the deciduous trees (those that loose their leaves in the
autumn) are usually thought of as hardwoods and the evergreen trees (such as
pines, firs and larches) as the softwoods. But generalisations are of course
always subject to many exceptions. Some evergreens may well be harder than
Loading...