Metaloterm® UK

The Metaloterm® UK system is a modular concentric flue system, made of stainless steel  with a sealing ring which combines air inlet and flue.
Metaloterm® UK is suitable for low temperatures, condensing and non condensing
applications with flue gasses in positive or negative pressure. The system is suited for
room sealed applications such as condensing heaters and boilers.
For Passive house the Metaloterm® assortment provides the Iso-block which can becombined with UK. 

· Concentric flue-system for balanced flue/direct vent gas-fired boilers
· Combined flue-system and air inlet for heating room

· Boiler adaptors are being manufactured on specification
· Horizontal and vertical terminals
· Sealing rings pre-mounted in every product
· Inner and outer wall of high quality stainless steel
· Easy assembly; lightweight elements
· Compatible with Metaloterm® ME, UE and MF
Technical characteristics
Application Balanced flue/direct vent
Operating mode Dry/wet
Pressure Negative/positive pressure
Max. working pressure 200 Pa
Operating temperature 200 °C
Max. temperature allowed 200 °C
Inner wall  
· Material AISI 316L/EN 1.4404
· Thickness 0,4 mm
Outer wall  
· Material AISI 304/EN 1.4301
· Thickness 0,4 mm
Sealant Elastomer
Fuel type Oil/ gas


Inner diameter (mm)  80 100
Outer diameter (mm) 125 150
Cross section (cm2) 70 98
Weight (+/-kg/m) 2,1 2,6




Ontop software

Building blocks (CAD

Mounting instructions

Mounting heights and distances