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MODEL DETAILS

Model Name 

                                

Graphite Boiler

Model Number                                             

GR910-B

Dimensions (mm) 

                H

719

 W

580

 D

545

Net Weight                                  

                      177kg 

 

PERFORMANCE

From Kiwa GasTec BS EN13240: 2001 Tested Dec 2013

 

 

Wood

Intermittent Burning – 1.0 hour refuel period
Nominal Heat Output             To Space            

5.7 kW

 

 

                    To Water            

9.4 kW

 

 

                    TOTAL              

15.1 kW

Efficiency (net)   

 

                                 74.9%

Mean CO Emission (at 13%)                             

0.43%

Mean Flue Gas Temperature                              

346ºC

Flue Gas Mass Flow                                        

10.6 g/s 

 

Mineral Fuels (Ancit) 

Continuous Burning – 2.0 hour refuel period
Nominal Heat Output             To Space            

4.9 kW

 

 

                    To Water            

7.2 kW

 

 

                    TOTAL              

12.1 kW

Efficiency (net)   

 

                                 74.3%

Mean CO Emission (at 13%)                             

0.33%

Mean Flue Gas Temperature                               

337ºC

Flue Gas Mass Flow                                        

10.0 g/s 

 

MINIMUM DISTANCES

Minimum Distance from Combustible Materials
Sides                                                            

100 mm

Rear 

                                                         

200 mm

Combustible mantels (eg wood) are not recomended 

 

FLUE 

Flue configuration                                         

top only

 

Flue outlet diameter                                

150 mm (6”)

Minimum flue height 

 

        

4,500 mm (15’) 

 

BOILER

Factory pressure tested to 3.5 Bar maximum
Water capacity    

            

17kg / 17L (3.7 Gal)

Maximum operating Pressure      

 <1.5 Bar (0.15Mpa)

Pipework ports                                      

Four x 1” BSP

NB When using 2 tappings they must be diagonal 

 

RECOMMENDED FUELS

Wood Logs: Moisture content                            

<20%

Maximum Wood Fuel Load   

4 .8kg (approx 10lb 9oz)

Maximum Log Length 

                      

400 mm (16”)

Or Approved Smokeless Fuels (www.solidfuel.co.uk)
Maximum Mineral Fuel Load   

3.8kg (approx 8lb 6oz)

 

 

PERMANENT AIR SUPPLY – IMPORTANT

The total rated output of this stove is 15.1kW.  
Building Regulations’ permanent ventilation  
requirements should be based on this total output 
and 

not just 

the stove’s output to the room. Approved 

Document J of the Building Regulations gives more 
detailed information about air supply.
 

STANDARD FEATURES

1 Primary Air Control

 Air which enters under the 

grate for multi fuel burning and to assist a wood log 
fire to get started

2 Secondary Air Control

 Air which enters at the top 

of the fire chamber to ensure a cleaner burn and  
effective wood burning (pull out to open)

3 Airwash System

 Part of the secondary Air control 

system which diverts hot air down along the front of 
the glass to burn off unwanted sooty particulates and 
help keep it clean

4 Thermostat Control

 This adjusts the temperature 

of the water leaving the boiler from low to high by 
controlling part of the combustion air supply to the 
fire chamber

5 System Ports

 There are four 1” BSP water ports –  

at the rear of the firebox

6 External Riddler

 When burning mineral fuels use 

the tool provided to slot into the riddler bar to move 
the riddling grate backwards and forwards.

GENERAL SPECIFICATION

4

6

Summary of Contents for GR910-B

Page 1: ... to make a claim under the Hi Flame Warranty You will find the serial number beginning with GR on the CE plate at the rear of the stove as well as on the lid of the outer packaging Write the date the stove was delivered to you below as this is likely to differ from the purchase date Remember to keep your receipt as proof of purchase Ref GR910 B UK NI ROI V3 06 15 www hi flame com Graphite This appli...

Page 2: ...for guidance purposes only may differ slightly from your new Hi Flame Graphite Boiler stove However the principles illustrated here remain the same Hi Flame Fireplace UK Limited CONTENTS Page 4 5 5 5 6 6 7 7 7 8 8 8 9 10 11 12 13 13 14 14 15 15 17 17 17 18 19 19 20 22 22 General Dimensions General Specifications including minimum distances Permanent Air Supply Standard Features and Controls Packing...

Page 3: ...alling this stove in a UK Smoke Control Area the Hi Flame Graphite Boiler stove can only be fuelled with approved smokeless fuels it will be illegal to burn wood or any other non approved fuels in it Even if you have installed or operated stoves before remember manufacturer s requirements can vary and can also change with updates to building regulations therefore please read this manual before you...

Page 4: ...4 GENERAL DIMENSIONS ...

Page 5: ...4 8kg approx 10lb 9oz Maximum Log Length 400 mm 16 Or Approved Smokeless Fuels www solidfuel co uk Maximum Mineral Fuel Load 3 8kg approx 8lb 6oz PERMANENT AIR SUPPLY IMPORTANT The total rated output of this stove is 15 1kW Building Regulations permanent ventilation requirements should be based on this total output and not just the stove s output to the room Approved Document J of the Building Reg...

Page 6: ...In the confined space of the stove s fire chamber there is a real potential to cause a life threatening flash flame or explosion Never over fire the stove If any external parts of your stove glow red during operation then immediate action should be taken to reduce the supply of combustion air to the fire chamber through the Primary Secondary and Thermostatic Air controls which should quickly limit the i...

Page 7: ... of any residue water during maintenance or removal All electrical connections for example to system valves the circulating pump and the link up component must comply with current Building Regulations Ensure that the pipework is correctly earthed See page 8 and 24 for relevant regulations The mains water connection to the system must 7 comply with local water authority regulations in order to safe...

Page 8: ...lid fuel and wood burning appliances and systems are subject to the requirements of Building Regulations These regulations must be observed and such installations need to be notified to the relevant Local Authority Building Control department by law Hetas www hetas co uk is the official body recognised by the Government to approve solid fuel domestic heating appliances and the registration of compet...

Page 9: ... packaging You must retain this until the stove is installed and is fully operational Remember to keep the bar coded serial number label Unfasten retaining wires and remove any components including those inside the ash pan from inside the stove Inspect Check the stove has not been damaged in transit never attempt to install a stove which has been damaged If damage is suspected then report this imm...

Page 10: ...ou ll see the baffle plate lug Push the baffle upwards to one side so that you can drop the plate down and move it out of the way to clear the lower retaining ledge Should there be excessive soot debris then you will need to review how you operate your stove and also check the quality of your fuel The Graphite Boiler s wide body means that you should not rely solely on being able to clear exces sive...

Page 11: ...e three access panel bolts with the correct sized socket or ring spanner and loosen and remove any fire cement seal Gently and evenly prise around the plate to free it from its cement seal Do not attempt to lever the plate from one point only as this could put undue pressure where the plate still secured causing it to crack Clean the boiler and flueway using a lightweight wire brush if necessary Che...

Page 12: ...sant smoky smells both inside and sometimes outside the house In the event of a problem with your stove always check your choice of fuel first Manufactured or finished wood products such as plywood and chipboard must also be strictly avoided because of the high chemical adhesive content used in their production which will also leave harmful potentially corrosive residue inside the stove and flue syst...

Page 13: ...pes of combustion air that wood and mineral fuels need Your new stove can burn very well or very poorly depending on how you light the fire how you refuel the fire and of course the type and quality of the fuel that you are burning A log moisture meter is a cost effective investment if you want to maximise the efficiency of your stove and wood fuel Wear protective gloves when loading a burning stove ...

Page 14: ... and gases whenever possible point the log ends away from the glass to help keep the glass clean Fuel Load Ideally the logs should be approximately 400mm 16 long A typical fuel load should weigh approximately 4 8kg 10lb 9oz To get the best out of your stove ideally you will need three different thicknesses of wood log as you build the fire through each lighting phase 1 Kindling This is generally fin...

Page 15: ...rds the glass as this is where some of the gases and moisture from the logs escapes and this can cause staining which the Airwash may find difficult to remove Only reduce the Secondary Air control when the wood has carbonised and the fire is burning at a high temperature This is when the ash on the burning wood looks light grey and virtually covers all of the wood You will be able to tell when the st...

Page 16: ...commend burning your Graphite Boiler on high output for at least 30 minutes each day to help burn off any potential soot or creosote build up but be careful not to over fire the stove 2 Small regular loads when refuelling will produce a more efficient and cleaner burning performance 3 Avoid burning large amounts of wood with the Secondary Air supply turned down as this will reduce the effectiveness ...

Page 17: ...rature and the burn rate of the mineral fuel load and therefore the heat into the room To do this ensure the Primary and Secondary Air is fully closed Then simply control the flame pattern and burn rate with the Thermostat Control However you may still need to undertake some subtle adjustments to both the Primary and Secondary Air supply to achieve the correct balance of combustion air for your sto...

Page 18: ... requirement of your Warranty that the stove is installed by a competent person such as a Hetas or INFO registered installer who will be fully aware of any building and safety regulations which apply to stove installations in your location Boiler Stove Location Checklist The existing constructional hearth the main part of the hearth is suitably constructed and is of a thickness that conforms to al...

Page 19: ...east 125mm 5 thick This can include the thickness of any non combustible floor under the hearth or non combustible decorative surface It must be capable of supporting the weight of the stove when loaded and boiler with water add approx 15kg along with any attached flexible flue liner which may bear down on the stove This hearth must conform to local building regulations which may vary from country to...

Page 20: ...e the stove s operation with greater control over the fuel burn rate and efficiency Your existing chimney could leak smoke fumes and potentially dangerous invisible carbon monoxide into other parts of the building Condensation or creosote tar often associated with burning wood could eventually seep through the walls particularly if they are made of old or porous brick and or are jointed with lime m...

Page 21: ... diagram shown overleaf should be used for general guidance purposes only and is included here to demonstrate basic system principles Combined with the at a glance list below this should provide you with a basic understanding of the essential requirements your system should have As each system and its requirements will vary the list below is by no means meant to be comprehensive A good system shou...

Page 22: ... 23 ...

Page 23: ...s not overheat A low limit thermostat set at 45ºC should be fitted to the gravity return pipework and connected to the circulating pump This should be set to come on when the water temperature reaches above 45ºC to begin the circulation process Hot water cylinder The water system must be properly vented and you must use a double feed indirect cylinder which is in accordance with current issue of BS...

Page 24: ...rements Explain the householder s legal requirement to use an approved fireguard whenever children or the elderly and the infirm are likely to be in the vicinity of the stove If the installation is in a designated Smoke Control Area then also explain the householder s responsibility only to use approved smokeless fuels 8 Instruction Manual Make sure that the customer receives this copy of the Instru...

Page 25: ...ow it is extremely important that the radiators are balanced to ensure an efficient distribution of heat as well as an even heat balance from one radiator to the next The idea is to reduce the flow to the hottest radiators so that more hot flow is available to heat the coolest ones The system is balanced when there is a good hot water flow through every central heating radiator To undertake this all o...

Page 26: ...could also indicate that the chimney or flue itself also needs cleaning Causes Inadequate supply of combustion air Check that any permanent air vent fitted to supply the extra combustion air required for the stove has not been accidentally blocked Remember there should never be an extractor fan in the same room as a stove A simple way of checking whether or not the stove is receiving enough combusti...

Page 27: ...lem because the Airwash does not get hot enough and some blackening of the glass should be considered a because draught stabilisers limit the exit of flue gases from the stove they should only ever be specified fitted and subsequently tested by an approved installer Causes Fuel The fuel itself may be of poor quality For example pine and other softwoods used in the building trade will burn much quicke...

Page 28: ...ter then it is more than likely to be a problem with the system The simplest way to determine this is if possible to check that the top water pipe from the stove is hot and that the lower pipe is cooler If this is the case then this indicates that there is a problem with the system and not the stove Causes Circulation pump or thermostatic valve failure A fault in one of the system s key components...

Page 29: ...move the log retaining bar by lifting it upwards to expose the bolt head at the top of the firebrick retaining clamp Always use penetrating oil to help release the bolt and use the correct sized spanner or socket Do not force the bolt Then simply remove the damaged bricks and replace them both with new ones When replacing and clamping the bricks in place ensure they make good contact with the insid...

Page 30: ...es as this type of polish can cause deep staining to the skin and fingernails Repair worn or scratched surfaces with a proprietary heat resistant spray paint made specially for stoves also available from your stove dealer Never use an aerosol spray on or near the stove when it is burning or it is hot Door Rope Seals It is important that you maintain a tight door seal as this prevents unwanted air l...

Page 31: ...onal performance and safety standards It is not the responsibility of Hi Flame or their distributors to ensure that the appliance is installed and operating correctly at the time of the installation This is strictly the responsibility of the stove owner and any complaints regarding the performance of the installation should be addressed to the stove dealer or the stove installer HI Flame offers th...

Page 32: ... Hi Flame technical department pressure tests then under the terms of Hi Flame s 1 year or extended 5 year warranty your reasonable expenses provided receipts are provided to us will reimbursed and an appropriate replacement supplied subject to model availability What the Hi Flame Warranty DOES NOT cover In line with other manufacturers the Warranty does NOT cover the following consumable items Fi...

Page 33: ...k all parts for wear or damage and replace as necessary Re fit internal parts and flueway access lid Stove Glass Check the glass for chips or cracks and the glass seal condition and replace if necessary Thoroughly clean the stove glass on both sides Door Seal Check that this makes an air tight seal and replace if necessary Ensure that the new rope joint is also in the middle at the base of the rope ...

Page 34: ... AND SETTINGS For future reference include a basic drawing of the system and notes on the circulation pump and system thermostat settings etc as well as their location and the location of the system drain point 35 ...

Page 35: ...mes Chapel Cheshire CW4 8AF United Kingdom Hi Flame Fireplace UK Limited 2014 All rights reserved Booklet contents may not be copied in whole or in part without the prior written permission of the copyright holder Hi Flame and Graphite are the company name and trading names of Hi Flame Fireplace UK Limited Graphite ...

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