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Installation through the wall: 

x

  Make a hole in the wall. Its size should leave about 10-20mm (7/16-13/16”) of clear space 

all around the door extension. 

x

  Remove the stove door by taking the hinge pin off (note the 2 base plates between door 

and frame). 

x

  Remove the ash door. 

x

  On the other side of the frame, remove the rivet from its hole in the upper part. 

x

  Install the stove from the sauna side. Insulate the gap between feed door and wall with 

fireproof mineral wool. Follow the instructions of the mineral wool manufacturer! 

x

  Install the frame into place via the door (do not yet attach it to the wall). 

x

  Attach  the  door.  Remember  the  base  plates.  At  this  point,  you  may  choose  the  door's 

opening direction. 

x

  Place the rivet in the upper part of the frame in the remaining hole. 

x

  Put the ash door into place. 

x

  Ensure that a gap of 5-10mm (1/4-7/16”) remains between extended door and the frame 

on top of it to allow for heat expansion. 

x

  Attach the frame to the wall with six 5mm (1/4”) screws using metal attachments that are 

embedded in the wall. 

 
 

2.5.3

.

 Connecting from the top 

Make an opening into the brick chimney that is 2–3 cm (13/16-1 3/16”) larger than the connection 
pipe.  
Use a 45° bent pipe for the connection from the top of the stove, which can be turned to align 
with the chimney. Suitable 45° bent pipes are available at the hardware store. Extend the bent 
pipe with an extension piece, if necessary. Install the stove’s own connection pipe in the door-
side flue opening on top of the stove (JK models), in the back wall side flue opening (KS models) 
(the other opening is the sweeping hole, which must not be used for the pipe!). The bent pipe is 
then attached to the stove’s own connection pipe. Saw the bent pipe and any extension pipe 
down to a suitable size where necessary. Make sure the pipe extends sufficiently into the 
chimney (but not so far that it blocks up the chimney). 

 

Seal the empty space between connection pipe and chimney with flexible, fireproof material such 
as stone wool. The lead-through is then tidied up with a Kastor covering plate, which is available 
at your hardware store. The covering plate is attached to the wall with metal bolts or fireproof 
paste. See picture 2.5.2. 

2.6. Connecting to a Kastor chimney   

(not available in U.S. market)

 

The Kastor stove can be connected from the top to a factory built Kastor chimney. 
Make sure to choose the correct chimney type with regard to your stove model, chimney height, 
temperature class T 600, exterior circumstances etc. For best results we recommend that you 
install a chimney valve, as well. Picture 2.6. 

x

  Set the stove’s own connecting pipe into the stove’s door-side flue opening (JK models). 

x

  Set the stove’s own connecting pipe into the stove’s back wall side flue opening (KS 

models) 

x

  Install a no insulated connection pipe and any necessary extension piping on top of the 

connecting pipe. Where necessary, saw the connection pipe and the extension pipe down 
to suitable size. 

x

  The chimney valve goes between the insulated and no insulated sections or into the first 

insulated pipe section. 

x

  Continue from the chimney valve with an insulated pipe. The insulated pipe section must 

start at least 400 mm (16”) beneath the ceiling. Follow the installation and usage 
instructions for Kastor chimneys. 

4211-61  Kastor KS

 

 8 

3/25/11

 

Rev. 1 

Summary of Contents for KS-20

Page 1: ...KASTOR KS KS 20 KS 20V KS 27V 4211 61 Kastor KS 1 3 25 11 Rev 1...

Page 2: ...6 2 5 Connecting the stove to a brick chimney and instructions for JK stoves 7 2 6 Connecting to a Kastor chimney 8 2 7 The stove door and changing the opening direction 9 2 8 Air guide plate 9 2 9 G...

Page 3: ...m reliable suppliers we have gathered over the years The steel is Finnish structural steel from Ruukki which can be bent into various solutions while retaining its hardness due to its uniform quality...

Page 4: ...existing chimney connection or installation route of any new chimney pipe o Floor material flammable non flammable tiled and waterproofed 2 Installation and preparation for use 2 1 Preparing for use...

Page 5: ...upright positions Picture 2 2 The maximum stone capacity is about 60kg 132 lbs By adjusting stone size amount and adding other types of stone you can balance the steam consistency to suit the sauna an...

Page 6: ...surface If the flue pipe starts off from the top of the stove with a non insulated connection pipe the required safety distance is 1 000 mm 40 in all directions and 1 200 mm 48 above The safe distanc...

Page 7: ...ere is a flammable floor in the room with the door the area requiring protection must extend 100mm 4 beyond both sides of the door and at least 400mm 16 in front of it The protective layer should be a...

Page 8: ...ls the other opening is the sweeping hole which must not be used for the pipe The bent pipe is then attached to the stove s own connection pipe Saw the bent pipe and any extension pipe down to a suita...

Page 9: ...se damaged it must be replaced Replacing the air guide plate Remove the grate Install the air guide plate in the fire compartments back so that its support part is on the grate support Check the plate...

Page 10: ...the flames rage with great strength towards the stove s upper part x The sauna and or stones do not heat up properly in less than an hour although the stove has the correct size When you light the fi...

Page 11: ...er edge x Place ignition helpers on top e g small sticks and a piece of bark x Light the ignition helpers from the top x Close the door and leave the ash compartment door open by 3 cm 1 1 8 x Once the...

Page 12: ...pages at www kastor fi wood burning select your stove Smoke leaks into the sauna bad draft Is the chimney valve open Is the connecting pipe attached tightly both to the stove and the chimney There mu...

Page 13: ...he stones packed too tight The stones need to be stacked in such a way that there is enough air between them See chapter 2 2 Are the stones good quality and the correct size Suitable stones are perido...

Page 14: ...60300 e mail info helo fi Technical Support For troubleshooting or service questions call 1 888 780 4427 and ask to speak with tech support Prior to calling please have the Model number available You...

Page 15: ...ectional view of the stove s stone compartment 10 2 3 Picture Installation of Kastor stove using a protective stove base 1 Concrete floor or tiled waterproofed floor 2 Protective stove base 3 Wooden f...

Page 16: ...al distance from stove 1000mm 40 if no protectors 3 Platform 30mm 1 4 1mm 1 16 thick metal sheet or 7mm 5 16 of fiber reinforced board 5 Stainless steel attachment screw 2 5 1 Picture 2 5 2 Picture Co...

Page 17: ...Connecting to a Kastor chimney Measurements in millimeters 1 Chimney valve device 4211 61 Kastor KS 17 3 25 11 Rev 1 2 8 1 Picture 2 8 2 Picture 1 Air guide plate 1 Air Guide plate 2 Grate 2 Grate 3 G...

Page 18: ...cting to combustible material from connecting pipe surface to the side 1000mm 40 upwards 1200mm 48 B The stove s distance from combustible material to the side and backwards 500mm 20 C The stove off t...

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