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Important 

 
 

To ensure that you gain the most from your purchase, please take a few 

minutes to read through this manual before lighting the appliance for the 

first time. 

 
SINCE  APRIL 2002  ONLY  REGISTERED  COMPETENT INSTALLERS CAN INSTALL 
SOLID FUEL APPLIANCES. INSTALLATIONS CARRIED OUT BY NON-REGISTERED 
INSTALLERS MUST BE INSPECTED BY LOCAL AUTHORITY BUILDING CONTROL.  
FOR MORE INFORMATION PLEASE CONTACT HETAS AT;  

www.hetas.co.uk

 OR TELEPHONE 0845 6345626 

 

 

The  installation  of  this  appliance must  comply with  current  Building 
Regulations  and  local  regulations,  including  those  referring  to 
national and European standards need to be complied with when 
installing the appliance.   

 

Do not operate this appliance if it becomes damaged. 

 

Improper  use,  maintenance  or  fitting  parts  other  than  those 
approved  by  the  manufacturer  could  lead  to  the  appliance 
becoming damaged or unsafe which in turn could lead to personal 
injury or damage to the property and will void the warranty. 

 

The appliance must not be modified in anyway unless authorized by 
ACR Heat Products Ltd. 

 

The appliance should be inspected regularly to ensure the airways 
are clean and free from obstruction and the chimney swept at least 
once a year. 

 

The external surfaces of this appliance will be very hot to the touch 
when  in  operation  and  due  care  will  need  to  be  taken  when 
operating  the  appliance  to  ensure  safety.    A  fire  guard  that 
complies to BS 8423:2002, should be fitted if it is likely that the elderly, 
infirm or children may come into contact with the appliance.  

 

This appliance must not be used as an incinerator. 

 

This appliance has been designed for intermittent operation. 

 

Before installation, please ensure that the correct model has been 

supplied.  Please also make a note of the serial number of your appliance 

in the space provided on the front cover of this manual as this will be 

requested if you require technical assistance in the future. 

 
 
 
 
 
 
 

Summary of Contents for Hopwood HW1MF

Page 1: ...CHNICAL MANUAL Hopwood Multifuel Stove Model HW1MF To be retained by the user for future reference Serial Number Document ref HW1MF 0101 Date 17 7 2013 Thank you for purchasing an ACR Heat Products stove ...

Page 2: ...amaged or unsafe which in turn could lead to personal injury or damage to the property and will void the warranty The appliance must not be modified in anyway unless authorized by ACR Heat Products Ltd The appliance should be inspected regularly to ensure the airways are clean and free from obstruction and the chimney swept at least once a year The external surfaces of this appliance will be very ...

Page 3: ...se note that Building Regulations Document J advises that additional permanent air supply is required for appliances with an output of above 5Kw With modern properties additional air may be required as Document J suggests that additional air would be a benefit If design air permeability 5 0m h m then 550mm kW of appliance rated output above 5kW Or If design air permeability 5 0m h m then 550mm kW ...

Page 4: ...HW1MF Dimensions ...

Page 5: ...gislation the Clean Air Northern Ireland Order 1981 applies in Northern Ireland Therefore it is a requirement that fuels burnt or obtained for use in smoke control areas have been authorized in Regulations and that appliances used to burn solid fuel in those areas other than authorized fuels have been exempted by an Order made and signed by the Secretary of State or Minister in the devolved admini...

Page 6: ...his measurement can be reduced to 50mm A minimum clearance of 300mm is required above the appliance Clearances to combustible materials There must be a minimum clearance of 500mm at each side and 725mm at the rear of the appliance from any combustible materials If using single wall flue pipe there must be a clearance of at least 3 times the diameter of the flue pipe e g 125mm diameter pipe 375mm m...

Page 7: ...prerequisite suitable measures e g load distributing plate shall be taken to achieve it Flue Requirements The chimney must comply with current Building Regulations Provision must be made to provide access for cleaning the appliance the flue gas connector and the chimney flue The flue must be In sound condition and provide sufficient draft Min 12Pa Suitable for use with solid fuel burning appliance...

Page 8: ... should be fitted by a competent person as part of the original commissioning process and once installed should not be removed The appliance is supplied assembled with the flue spigot in the top exit position If you intend to install the appliance using a rear flue connection the blanking plate should be swapped over as follows Remove the internal baffle plate Remove the rear blanking plate Remove...

Page 9: ...E UNDERSIDE OF THE GRATE This will overheat the grate and cause premature wear and distortion The internal vermiculite panels of the appliance should be checked regularly for soundness If any wear and tear is found we recommend these parts are replaced immediately Check the rope door seals are intact and are not worn These should be replaced on an annual basis to ensure the correct operation of th...

Page 10: ...r assistance If the appliance has overheated the appliance will need to be inspected for any damage before it can be operated again Recommended Fuels Wood hardwood such as ash oak and beech which have been cut for at least 2 years and stored under shelter The logs should have a maximum moisture content of 20 Maximum recommended fuel size for use in the appliance are 40cm x 12 5cm x 12 5cm Smokeles...

Page 11: ...uld be taken to ensure that the logs are not placed higher than the fuel guard allows Instructions for use with smokeless fuel Slide the top air control to the right and open the primary air fully open the tertiary air tabs at the rear of the appliance by 50 Lay firelighters or rolled up newspapers on the grate and add a small amount of kindling wood to the top Place a small quantity of smokeless ...

Page 12: ...tion with the door open can cause excess smoke The appliance must not be operated with the appliance door left open except as directed in the instructions Dampers left open Operation with the air controls or appliance dampers open fully can cause excess smoke The appliance must not be operated with air controls appliance dampers or door left open except as directed in the instructions Never leave ...

Page 13: ...ogs Start Fire goes with a maximum Out moisture content of 20 Logs are too large Use kindling and small logs to start the fire and once established use split logs Not enough primary air Open air control Insufficient draft Check the flue is not Obstructed Fire burns too Too much draft Reduce the air control Quickly Check door rope seals Excessive draft Install a draft stabiliser Smokes on initial F...

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Page 17: ... 16 1 grate frame 4290 1360 17 1 log guard rail right 7911 1211 18 1 log guard rail left 7911 1212 19 1 riddling rod 9900 1028B 20 1 oscillating grate 4290 1201A 21 2 log guard 4290 1362 22 1 left vermiculite brick 6081 801 23 1 back panel 4290 1360 24 1 right vermiculite brick 6081 802 25 1 baffle plate 3711 181 26 1 secondary air buffle 9900 1141 27 2 linea spring 6536 018 28 1 secondary air reg...

Page 18: ...ss as this will prohibit its expansion and could cause the glass to crack Ensure that all internal components are fitted correctly these may have shifted in transit Ensure that the appliance operates correctly during the first firing Ensure the customer is aware that fumes may be given off during the first firings as the paint cures Advise the customer on the safe operation of the appliance Leave ...

Page 19: ... by a registered competent installer HETAS or inspected by local authority Building Control The appliance must be installed and operated in accordance with our instruction manual The guarantee is for a period of 5 years on the appliance body from the date of purchase The following components are considered as consumables and are excluded from the guarantee Grates Rope seals Ashpan Internal vermicu...

Page 20: ...ase Date of installation Installer s Name and address Installer s Registration Number Building Control Certificate Number if not installed by a registered competent installer Dealer Name and address Unit One Weston Works Weston Lane Tyseley Birmingham B11 3RP UK Tel 0121 706 8266 Fax 0121 706 9182 Email enquiries acrheatproducts co uk ...

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