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0. TECHNICAL DATA 

HEATING CAPACITY WITH THE GRATE IN DOWN POSITION: 

 

Nominal heating capacity (wood/coal) 

27,56 kW / 26,7 kW 

Heating capacity by radiation of heat (wood/coal) 

7,44 kW / 6,4 kW 

Heating capacity to water    (wood/coal)                              

20,12 kW / 20,3 kW 

HEATING CAPACITY WITH THE GRATE IN UP POSITION: 

 

Nominal heating capacity   (wood/coal) 

20 kW / 20kW 

Heating capacity by radiation of heat    (wood/coal) 

6kW / 6kW 

Heating capacity to water    (wood/coal)                              

14kW/14 kW 

REQUIRED CHIMNEY DRAFT 

20 Pa 

FLUE PIPE CONNECTION DIAMETER 

150 mm 

HEIGHT FROM THE FLOOR TO FLUE PIPE CONNECTION AXIS 

690 mm 

STOVE DIMENSIONS: 

 

Width 

900 mm 

Height 

850 mm 

Depth 

600 mm 

OVEN DIMENSIONS: 

 

Width 

330 mm 

Height 

260 mm 

Depth 

440 mm 

FIREBOX DIMENSIONS: 

 

Width 

315 mm 

Height   (min/max) 

264/460 mm 

Depth 

414 mm 

FIREBOX DOOR OPENING    (width/height) 

175/200 mm 

FLOW AND RETURN PIPE CONNECTIONS 

R1" RS 

THERMO VALVE AND SAFETY VALVE CONNECTIONS 

R1/2" RU 

COOLING PIPE CONNECTIONS 

R1/2" RS 

BOILER VOLUME 

25 l 

HEATING VOLUME WITH THE GRATE IN DOWN POSITION: 

340 – 450 m

3

 (total) 

Heating volume by radiation of heat 

90 – 115 m

3

 

Hot water (radiator) heating volume  

250 – 335 m

3

 

HEATING VOLUME WITH THE GRATE IN UP POSITION: 

250 – 330 m

3

 (total) 

Heating volume by radiation of heat 

75 – 100 m

3

 

Hot water (radiator) heating volume  

175 – 230 m

3

 

MAXIMUM OPERATING PRESSURE  

0.25 MPa 

MAXIMUM OPERATING TEMPERATURE 

90 

°

WEIGHT (gross/net) 

219/195 kg 

FLUE GAS TEMPERATURE  (wood/coal)                              

207 / 229 

°

CONTENT OF CO (13% O

2

)

 

0,55 / 0,93 % 

ENERGY EFFICIENCY  

76,92 / 74,4 % 

 
Heating capacity is given for dry beech wood used as firewood, with lower calorific value of Hd = 4255 W/kg, 
and brown coal Hd = 4926 W/kg.

Summary of Contents for ALFA TERM-27

Page 1: ...STOVE USED FOR LOCAL HEATING ALFA TERM 27 INSTALLATION SETUP AND OPERATION INSTRUCTIONS...

Page 2: ...IONS Width 315 mm Height min max 264 460 mm Depth 414 mm FIREBOX DOOR OPENING width height 175 200 mm FLOW AND RETURN PIPE CONNECTIONS R1 RS THERMO VALVE AND SAFETY VALVE CONNECTIONS R1 2 RU COOLING P...

Page 3: ...pipe connection 21 Cleaning access plate 22 Handle 23 Grate support 24 Additional lid 25 Lever support 26 Tertiary air regulator knob 27 Tertiary air regulator cover 28 Cleaning access plate smaller...

Page 4: ...4 Figure 1...

Page 5: ...t and not on the side outlet The stove will reach its nominal heating capacity if the draft in the chimney is 20 Pa A chimney ensuring good draft is the basis of proper functioning of the stove The ch...

Page 6: ...walls it must be well insulated If the chimney connection is tightly connected to the chimney if the connection is extended If it is properly cleaned and free of birds nests dirt and soot If the flue...

Page 7: ...ation of the thermo valve safety pipe Item 6 is an R1 2 connection with an inner thread for safety valve installation 6 1 FLOW PIPE AND RETURN PIPE Fig 4 Items 1 and 2 and Fig 7 and 8 Items 3 and 10 T...

Page 8: ...R1 2 connection Fig 4 Item 6 is welded at the back of the boiler under the cooktop frame on which a safety valve MUST be fitted The safety valve should be 2 5 to 3 bars You can fit it directly on the...

Page 9: ...expansion vessel of 25 l and not more than 18 l which should be fitted on the return pipe as close to the boiler as possible and no block valves can be fitted between the boiler and expansion vessel...

Page 10: ...pe connection 3 Distribution pipe 4 Open expansion vessel 5 Safety valve 6 Radiator valve 7 Radiator 8 Air release valve 09 Circulation pump 10 Return pipe 11 Spigot for filling and discharge 12 Safet...

Page 11: ...em should be filled with water and well bled and the stove should be properly connected to the chimney as described in the foregoing items NOTE The stove may not be used without water It must be conne...

Page 12: ...of the grate and pull it out of its holder Place the grate on the supports 4 pcs welded inside the boiler firebox at the front and in the back 2 2 pcs Fig 1 Item 23 Place the grate at an angle slante...

Page 13: ...e damper used for starting the fire must be closed and power regulator must be open After you finish baking cooking or frying place the power regulator in desired position While baking increase the te...

Page 14: ...cloth cleaning agents and mild detergent instead Clean the oven after each use while still hot After cleaning leave the oven door open for a few minutes to prevent bad odors the next time you heat the...

Page 15: ...n all valves in the heating system and enable normal water circulation in the system Circulation pump failure Repair or replace the circulation pump to enable heating system operation Power outage Ope...

Page 16: ...mp speed Replace pump nuts or the entire pump 10 Noise murmur coming from the heating system Pump speed is too high Lower the speed Air in the system Bleed the air from the heating system Loose knobs...

Page 17: ...oor 17 Excessive heat for baking or cooking Thermostat set to a high temperature Reduce water temperature using the thermostat or burn a smaller fire 18 Boiler stove is smoking when used for the first...

Page 18: ...ses if the damage has occurred during transportation after the device was sold if the defects occurred due to improper mounting improper maintenance or mechanical damaging by the buyer if the defect o...

Page 19: ...19 Outline dimensions of ALFA TERM 27 stove Figure 16...

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