RAIS 2:1 Instructions For Installation, Use And Maintenance Manual Download Page 20

ENGLISH       

                          RAIS - manual for Rais 2:1 

20 

April 2014 

 

ONLY USE RECOMMENDED FUELS 

 
The following table shows the calorific value of different types of wood, which have been 
stored for 2 years and which have a residual moisture of 15 -  17%. 
Wood 

 

 

 

 

Kg dry wood pr m

3

   

 

 

compared to beech/oak 

Hornbeam 

 

 

 

 

640   

 

 

 

 

 

 

110% 

Beech and oak 

 

 

 

580   

 

 

 

 

 

 

100% 

Ash   

 

 

 

 

 

570   

 

 

 

 

 

 

 98% 

Maple 

 

 

 

 

 

540   

 

 

 

 

 

 

 93% 

Birch 

 

 

 

 

 

510   

 

 

 

 

 

 

 88% 

Mountain pine  

 

 

 

480   

 

 

 

 

 

 

 83% 

Fir   

 

 

 

 

 

390   

 

 

 

 

 

 

 67% 

Poplar 

 

 

 

 

 

380   

 

 

 

 

 

 

 65% 

1kg of wood yields the same heat energy irrespective of wood type.  
1kg of beech merely takes up less space than 1kg of fir. 

Operating instructions 

 

Please note that HETAS Appliance Approval only covers the use of dry seasoned wood 
logs on this appliance. HETAS Approval does not cover the use of other fuels either 
alone or mixed with the wood logs, nor does it cover instructions for the use of other    
fuels. 

 

Fuel 

 

The stove is designed and approved in accordance with EN 13240 and NS 3058 for  
stoking split, dried firewood. The firewood must have a water content of 15-22% and its 
max. length should be the length of the combustion chamber minus 50-60 mm. 
Stoking with wet firewood causes both soot, environmental pollution and bad fuel    
economy. Freshly cut wood contains approx. 50-70% water and is thoroughly unsuitable 
for stoking. Allow at least 1 year of storage time for newly cut wood before using. Wood 
with a diameter of more than 100 mm should be split. Regardless of wood size, it should 
always have at least one surface area free of bark. 
We do not recommend stoking with painted, laminated or impregnated wood, wood with 
a synthetic surface, painted refuse wood, chipboard, plywood, domestic waste, paper   
bri-quettes and pit coal, as this will produce malodorous smoke, which could be          
poisonous. 
When firing with the above-mentioned items and amounts larger than those                 
recommended, the stove is subjected to a larger amount of heat, which results in a 
higher chimney temperature and lower efficiency. This can result in the stove and    
chimney becoming damaged and would void the warranty. 
The calorific value of the firewood is closely connected to the moisture level.  
Moist firewood has a low heat value. The more water the wood contains, the more      
energy it takes for this water to vaporise, resulting in this energy being lost. 

Summary of Contents for 2:1

Page 1: ...S 2 1 IMPORTANT INFORMATION On first lighting the stove you must be careful not to touch the painted surfaces and it is MOST IMPORTANT that the door is kept slightly ajar in order for the door seal an...

Page 2: ...ENGLISH RAIS manual for Rais 2 1 2 April 2014...

Page 3: ...LATION DISTANCE TO NON COMBUSTIBLE WALL 14 15 INSTALLATION DISTANCE TO COMBUSTIBLE WALL 16 17 GENERAL INSTALLATION 18 FOR THE INSTALLER 19 OPERATING INSTRUCTIONS 20 FUEL 20 DRYING AND STORAGE 21 REGUL...

Page 4: ...We therefore recommend that you note down the number in the table below The production number is located at the back of the stove at the bottom Warranty Your Rais wood burning stove comes with a 5 yea...

Page 5: ...nt of wood when fuelling kg Based on 2 3 logs of wood approx 25cm 2 1 Min uptake Min draught Pascal 12 Weight kg 140 Smoke gas mass flow g s 5 1 Smoke gas temperature C 297 Intermittent operation Fuel...

Page 6: ...hout the entire room The cold air is sucked in at the base of the stove and up through the convection channel which runs along the stove s combustion chamber The heated air comes out at the top of the...

Page 7: ...The installation of this heating appliance is governed by the Health and Safety at Work Act 1974 it is the responsibility of the installer to ensure that all requirements of this Act are met during th...

Page 8: ...e liner must be used in accordance with Building Regulations Approved Document J Any existing chimney must be clear of obstruction and should have been swept clean immediately before the installation...

Page 9: ...ovision e g easily accessible soot door or doors must be provided for sweeping the chimney and connecting fluepipe You should also familiarise yourself with the draught conditions for chimneys with 2...

Page 10: ...not blocked Building Regulations Approved Document J gives specific guidance on the required permanent ventilation into the room for combustion air of solid fuel appliances The floor structure must b...

Page 11: ...ments using the levelling bolts in the base Remove the frame and door from the stove Be careful not to damage the glass or paint Leave the protective tape and plastic on the handles during installatio...

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Page 14: ...ENGLISH RAIS manual for Rais 2 1 14 April 2014 Insulation ability such as Aqua panel coefficient of thermal conductivity 0 36 W mk or better Please use metal stud...

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Page 16: ...ENGLISH RAIS manual for Rais 2 1 16 April 2014 The two rows of bricks beneath the stove is limited to a max depth of 75mm...

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Page 18: ...uld always be installed on a non combustible hearth of a size and construction that is in accordance with the provisions of the current UK Building Regulations Approved Document J If the stove is to b...

Page 19: ...d appliance connections to the chimney Ensure that the appliance and chimney flue are functioning correctly before finally handing over to the user Read the later parts of this manual for guidance on...

Page 20: ...f the combustion chamber minus 50 60 mm Stoking with wet firewood causes both soot environmental pollution and bad fuel economy Freshly cut wood contains approx 50 70 water and is thoroughly unsuitabl...

Page 21: ...chamber and is pre heated through the side channels and then emitted as hot scavenging air onto the glass The hot air rinses the glass and keeps it soot free The tertiary channel which can be seen at...

Page 22: ...oxi mately 19cm height Adjusting the air damper The damper has 3 settings Position 1 The damper is almost closed meaning that there is a minimal air intake Position 2 Pull push the lever until the fir...

Page 23: ...on The stove gets very hot when in use always wear protective gloves when tending the stove If the stove has not been used for a while follow the steps as if you were using it for the first time IMPOR...

Page 24: ...lways opened prior to lighting the stove Tips before firing up Open a door or window close to the wood burning stove If there is storm in the stove coming from the chimney it is advisable to place a s...

Page 25: ...a good bed of glowing embers add 2 3 pieces of wood Leave the door ajar until the fire has caught properly then close the door Damper see adjustment of the damper After approximately 5 minutes or when...

Page 26: ...ustion chamber Scrape shovel the ash out and store it in a non flammable container until it has cooled down You can dispose of ash with your normal household waste or recycle on the garden REMEMBER Ne...

Page 27: ...he sides Remove the baffle plate by lifting it upwards and tilting on it s end The other end is lowered and the baffle plate turned a little Gently take out the baffle plate Now there is a clear view...

Page 28: ...ney draught too large 22 Pa draught control regulator should be installed A stove burning too weakly could be caused by too little firewood too little air supply for the room ventilation dirty smoke c...

Page 29: ...parts other than those recommended by RAIS are used the warranty is voided All replacement spare parts can be purchased from your RAIS distributor stockist See the following spare parts diagrams for...

Page 30: ...ef Quantity Item No Description 1 2 9101401SORT Complete front 2 2 9101090 Door left hinged 2 9101090H Door right hinged 9101090L Door left hinged locked 9101090LH Door right hinged locked 9101032 Too...

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Page 36: ...RAIS manual for Rais 2 1 36 April 2014 U K Distributor Robeys Ltd Riverside Goods Road Belper Derbyshire England DE56 1UU Tel 01773 820940 Fax 01773 820477 E Mail info robeys co uk www robeys co uk Ap...

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