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Riddling Grate 

Your Parkray Stove is fitted with a locomotive type grate.  So 
that de-ashing can be carried out cleanly and easily, it is riddled 
from the outside of the stove with the doors closed. 

  

 
To  burn  wood

,  push  the  operating  tool  up  and  away  from  you.  

When left in this position, air is restricted through the bed of the 
fire providing a solid base to build up a bed of ash.  Surplus ash 
can be removed either by gentle riddling or with a shovel. 
 
It  might  prove  beneficial  when  burning  more  reactive  fuels  to 
leave the grate in a “neutral” position, thus directing some under 
fire air and some over fire air to the firebed. 

Notes on Wood burning 

With a full load of wood, the stove will need to be refuelled approximately once every hour.  
Wood can be stacked higher in the stove than solid mineral fuel but care must be taken that logs 
do not touch the baffle. 
 
Wood  burns  most  efficiently  with  the  secondary  air  valve  lever  in  the  open  position  and  the 
primary control closed. Moving the secondary control will control the burn rate of the stove.   
 
Note - primary and secondary air is needed to light the stove, see section entitled ‘Lighting the 
Stove’ 

 

Wood burns best on a bed of ash and it is therefore only necessary to remove surplus ash from 
the stove occasionally. 
Burn only dry, well-seasoned wood, which should have been cut, split and stacked for at least 12 
months, with free air movement around the sides of the stack to enable it to dry out.  Burning wet 
or  unseasoned  wood  will  create  tar  deposits  in  the  stove  and  chimney  and  will  not  produce  a 
satisfactory heat output. 

Lighting the Stove 

We  recommend  that  you  have  two  or  three  small  fires  before  you  operate  your  stove  to  its 
maximum heat output.  This is to allow the paint to cure in steadily and to give a long service life 
of the paint finish.  During this curing in process you may notice an unpleasant smell.  It is non-
toxic,  but  for  your  comfort  we  would  suggest  that  during  this  period  you  leave  all  doors  and 
windows open. 
 
First, load the fire with starting fuel, i.e. paper, dry sticks and/or firelighters in the mode chosen, 
either wood or solid mineral fuel. 
 
Light the fire at the base leaving all air controls open.  Allow the fuel to reach a steady glow and 
build the fire up gradually.  Once you have a good fire established across the grate, further fuel 
can be added as required. 

Reduced Combustion 

In order to shut down the stove, close the primary control, then close the secondary air slider by 
moving the handle all the way to the left.  If the controls are left in this position, the fire will be 
starved of air and will die down. If you want to revive the fire it is recommended that the primary 
air control is open first, then open the secondary air slider. 

Warning!- 

 The stove will remain 

hot

 for a considerable time after the fire has been 

extinguished. 

Summary of Contents for Derwent 5

Page 1: ...out the installation of this appliance alternatively your local Building Control Officer can approve the completed installation should a non accredited engineer undertake the installation It is an offence under UK law not to comply with this advice Please hand these instructions to the stove user when the installation is complete Leave the system ready for operation and instruct the user in the co...

Page 2: ...Wood Total Efficiency 76 8 Nominal Heat Output 4 6 KW Mean CO Emission at 13 O2 0 43 Mean Flue Gas Temperature 271 C Flue Gas Mass Flow 4 3 g s This appliance is not suitable for use in a shared flue This appliance is suitable for intermittent burning ...

Page 3: ...st not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit fumes into the room Flue Collar Place the Flue Gasket on the top or rear outlet as required Place the Flue Collar on top of the Gasket Secure to the four locating tabs inside the flue outlet using the M6 nuts bolts supplied Fit the 2 M8 carriage bolts washers nuts into the Damper Holes located on ea...

Page 4: ...g your Parkray Stove Side Bricks Rear Brick Baffle To assemble simply reverse the above procedure Slide the Side Brick towards the front of the stove and lift out Pull the top edge of the Rear Brick forward and lift out of the Stove Slide the Baffle towards the front of the stove until it clears the Baffle Supports Lower the Baffle into the Fire Box and remove ...

Page 5: ...ontrol department must approve the installation Scheme Web address Telephone APHC Association of Plumbing and Heating Contractors Certification Limited www aphc co uk 02476 470 626 Building Engineering Services Competence Accreditation BESCA Limited www hvca org uk www besca org uk 0800 652 5533 HETAS Ltd Heating Equipment Testing and Approval Scheme www hetas co uk 01462 634721 NAPIT Registration...

Page 6: ...ance The flue draught should be checked under fire at high output If it exceeds the recommended maximum a draught stabiliser must be fitted so that the rate of burning can be controlled and to prevent over firing If the reading is less than the recommended minimum than the performance of the appliance will be compromised Connection to the Chimney An existing fireplace opening can be bricked up or ...

Page 7: ...ot be less than 125mm thick and should be in accordance with the current building regulations Care should be taken to level the stove using the adjusting screws in the feet The appliance shall be installed on a floor with adequate load bearing capacity If the existing construction does not meet this prerequisite suitable measures e g load distributing plate should be taken to achieve it MINIMUM DI...

Page 8: ...at least 24 hours On completion of the installation and commissioning ensure that the operating instructions and operating tools for the stove are left with the customer Advise the customer on the correct use of the appliance with the fuels likely to be used on the stove and warn them to use only the recommended fuels for the stove Advise the user on what to do should smoke or fumes be emitted fro...

Page 9: ... of the fire Secondary Air Secondary air is controlled via the slider above the door it is this Airwash that keeps a clean and uninterrupted view of the fire Tertiary Air Tertiary air aids in good secondary combustion of the fuel and reducing emissions into the chimney and environment Tertiary air can be controlled by adjusting the cover plate on the back of the stove Damper Assembly Optional When...

Page 10: ...uld have been cut split and stacked for at least 12 months with free air movement around the sides of the stack to enable it to dry out Burning wet or unseasoned wood will create tar deposits in the stove and chimney and will not produce a satisfactory heat output Lighting the Stove We recommend that you have two or three small fires before you operate your stove to its maximum heat output This is...

Page 11: ... and operated this appliance will not emit fumes Occasional fumes from de ashing and refuelling may occur Persistent fume emission must not be tolerated If fume emission does persist then the following immediate action should be taken 1 Open doors and windows to ventilate room 2 Let the fire out or eject and safely dispose of fuel from the appliance 3 Check for flue chimney blockage and clean if r...

Page 12: ...be avoided as these can scratch the glass and make subsequent cleaning more difficult Wet logs on heated glass a badly aimed poker or heavy slamming of the doors could crack the glass panels The glass will not fracture from heat Firebricks In normal use these can last for many years It is possible however to crack them if logs are continually jammed against them or if they are frequently struck wi...

Page 13: ...otential obstructions by a competent person before lighting the stove Gaskets All gasket used on this appliance are produced from a heat resistant material called Manniglas The glass gasket will have to be replaced when a new piece of glass is fitted as the gaskets become brittle after firing the stove Over time you may also find that the gasket changes colour This is due to a reduction in the pig...

Page 14: ... HRR05 018 Glass Gasket HRR05 019 Glass Clip HHR08 046 Glass Clip Screw FSJM05008SS Ash Door HRR05 010 Slider Knob HHR08 045 Shaft DER05 003 Circlip FLRX07 Catch HMS04 037 Ash Door Cover HRR05 013 Slider Not Shown CH05 009 Door Knob DER05 001 Door Spacer DER05 002 Handle Nut HCE05 055 Door Spacer DER05 002 Handle Nut HCE05 055 ...

Page 15: ... 010 Baffle HRR05 024 Turbo Bar HCE05 048 Rear Brick M F HRR05 025 Side Brick HRR05 026 Flue Cover CH05 011 Riddling Support HHR05 023 Riddling Bar Upper CNS06 002 Riddling Bar Lower CNS06 001 Cam Bar Plate HRR05 009 Cam Bar HMS06 011 Ashpan HRR05 027 ...

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