Safe Chimney for Every Fireplace

Siro Prime is the most advanced single-wall chimney system in terms of insulation and fire resistance.

High-performance insulation increases safety without enlarging the chimney’s circumference.

SIRO Prime

The Best Stone Wool Insulation on the Market

44% better thermal insulation than the market average

Slim insulation layer – slim circumference.

Low binder content – no unpleasant odors when the fireplace heats up.

Simple structure – affordable chimney safety for every fireplace

With the Siro Prime chimney, you can invest in safety stylishly yet cost-effectively.

The low binder content and tightly woven, molded structure of the mineral wool insulation offer the best thermal insulation on the market.

This makes the chimney safe without a thick insulation layer.

Standard colours

Matte White

Glossy White

Matte Light Grey

ECO-FRIENDLY POWDER COATING

Our comprehensive color selection offers a suitable option for every setting. Looking for something special?
Get in touch ›

Matte Dark Grey

Matte Black

Brushed Stainless Steel

TECHNICAL SPECIFICATIONS
Usage	Fireplaces, stoves, masonry heaters, baking ovens, heating boilers, ventilation, outdoor kitchen grill, sauna stoves, charcoal grills, kitchen stoves
Application	Detached houses, row houses, summer cottages, enclosed terraces, grill cottages, saunas, industrial applications, restaurants, public spaces
Suitable fuels	Wood, pellets, gas, oil
Fire safety distance (mm)	110mm (penetrations: 80mm when additional insulation is max 200mm high)
Thermal insulation value	0,72m²K/W – at reference temperature 200 °C
Structure from inside out	Inner pipe, mineral wool (Paroc Fire Section), steel jacket
Flue pipe sizes (mm)	150, 175, 200, 250, 300
Outer diameters (mm)	238, 265, 290, 340, 390
Temperature class	T600
Wall penetrations	Yes
For enclosed structures	Yes
Lateral shifts	Yes
Product standard	EN 1856-1:2009
Type code	T600-N1-D/W-Vm-L50060-G110 / T600-N1-D/W-Vm-L20070-G110