Triple wall chimney system TW25
Triple wall chimney system TW25
Triple wall chimney system is designed to exhaust combustion products from heating appliances by natural draught and can be installed internally or externally the house.
Chimney system for particular cases must be selected according to the documentation of the heating appliance manufacturer, chimney installation guide and national legal acts.
| Fuel | Oil, gas, solid fuels |
| Working temperature | ≤ 450 °C |
| Steel |
Inner pipe: stainless steel EN 1.4404 Middle pipe: stainless steel EN 1.4301 or painted steel Outer pipe: stainless steel EN 1.4301 or painted steel |
| Wall thickness | When dn from 80 to 200 mm – 0,5, 0,6, 0,8, 1,0 mm When dn from 230 to 550 mm – 0,6, 0,8, 1,0 mm |
| Pressure class | N1 – natural draught |
| Insulation | Injected mineral wool, thickness – 25 mm |
| Sootfire resistance | G – resistant |
| Distance to combustible materials | ≥ 80 mm Tested non-enclosed and with insulated floor penetration |
| Condensate resistance | W – designed for wet operating conditions |
| Certificate | 1397-CPR-0596 |
| Designation code | EN 1856-1 T450-N1-W-Vm-L50XXX-G80 |
| 1 The minimum distance to combustible materials from the outer pipe of a chimney must be selected according to the technical specifications of the chimney, as described in their marking and national legal acts. If the legal acts and chimney technical specifications indicate different admissible distances of the combustible materials, it is necessary to select the higher distance. The minimal distance to combustible materials were determined using 200 mm diameter chimneys. The distance to combustible materials for chimneys larger than tested must be increased by a factor. For dn 201-300 mm the factor must be 1 time the distance to combustible material determined for dn 200 mm, for dn 301-450 mm - 1,5, dn 451-600 mm - 2, above dn 601 mm - 4. |
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| Catalogue | Download PDF |
| Instructions | Download PDF |
| Declaration of performance | Download PDF |
| Certificate | Download PDF |
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