Adrianm
2017-07-28 13:10:32
- #1
Underfloor Heating Laying Pattern 250sqm Hall (complicated)
Hello everyone,
I am new here.
I ask for support and tips for my project to replace radiators with underfloor heating.
It concerns an approximately 250sqm hall, ceiling height between 2.50 - 7.50 meters (average 4.85 meters height).
Heating so far: radiators between the ceiling pillars, approx. 18 KWA at 85° including nasty cold drafts, down drafts at the windows, etc. 23° air temperature was necessary so that no one would be cold. Added to that was a chimney effect over an open staircase from the ground floor into the hall.
My solution:
Underfloor heating fully laid in the hall with 1m outer edge 10cm spacing (because of windows), inside with 15cm spacing resulting in 25KW.
Fit wall heating with 15cm pipe spacing on the outer wall in the staircase to avoid the chimney effect. Wall heating on the outer walls on the ground floor, which is to be heated 1 degree lower than the hall on the 1st floor to avoid the chimney effect.
Current status:
The floor has been ripped out, on the 40cm thick reinforced concrete floor lie 8cm thick cork insulation boards, onto which the heating pipes will now be laid.
My planned laying pattern can be seen on the attached drawing, pipe length would be around 90 meters per heating circuit.
Wall insulation: wood fiber boards, roof: cork insulation.
100W per sqm calculated by the city energy consultant.
Questions:
1.) Laying pattern?
Heating circuit start on sketch / open shaft above heating cellar behind a column.
2.) Pipe dimension 16 or 20mm.
3.) PEX-c 5 layer pipe or aluminum composite pipe?
Currently planned is a Viessmann PEX-c 5 layer safety pipe 16x2.
Many thanks for your effort
Regards
Adrian
Hello everyone,
I am new here.
I ask for support and tips for my project to replace radiators with underfloor heating.
It concerns an approximately 250sqm hall, ceiling height between 2.50 - 7.50 meters (average 4.85 meters height).
Heating so far: radiators between the ceiling pillars, approx. 18 KWA at 85° including nasty cold drafts, down drafts at the windows, etc. 23° air temperature was necessary so that no one would be cold. Added to that was a chimney effect over an open staircase from the ground floor into the hall.
My solution:
Underfloor heating fully laid in the hall with 1m outer edge 10cm spacing (because of windows), inside with 15cm spacing resulting in 25KW.
Fit wall heating with 15cm pipe spacing on the outer wall in the staircase to avoid the chimney effect. Wall heating on the outer walls on the ground floor, which is to be heated 1 degree lower than the hall on the 1st floor to avoid the chimney effect.
Current status:
The floor has been ripped out, on the 40cm thick reinforced concrete floor lie 8cm thick cork insulation boards, onto which the heating pipes will now be laid.
My planned laying pattern can be seen on the attached drawing, pipe length would be around 90 meters per heating circuit.
Wall insulation: wood fiber boards, roof: cork insulation.
100W per sqm calculated by the city energy consultant.
Questions:
1.) Laying pattern?
Heating circuit start on sketch / open shaft above heating cellar behind a column.
2.) Pipe dimension 16 or 20mm.
3.) PEX-c 5 layer pipe or aluminum composite pipe?
Currently planned is a Viessmann PEX-c 5 layer safety pipe 16x2.
Many thanks for your effort
Regards
Adrian