The Harvia WZ020115 lead-through flange lets a 115 mm smoke pipe pass safely and cleanly through a wall or ceiling penetration. The stainless steel flange provides a secure, heat-resistant collar around the smoke pipe entry point — preventing heat transfer and smoke leakage while protecting the surrounding structure and giving the penetration a finished look.
Features
- Allows a smoke pipe to pass securely through a wall or ceiling
- Prevents heat transfer and smoke leakage at the penetration
- Protects surrounding surfaces from high temperatures
- High-quality stainless steel
- Limited 2-year warranty (consumer use); limited 1-year warranty (commercial use)
What’s Included
- Lead-through flange
- Installation and operation manual
Specifications
| Model | WZ020115 |
| Construction material | Stainless steel |
| Fits pipe diameter | 4.5″ (115 mm) |
| Weight | 0.4 lbs (0.2 kg) |
Compatibility
Sized for Harvia’s 115 mm smoke pipes and the WHP steel chimney system. Remember: a flange dresses and shields the penetration, but non-insulated smoke pipe still requires Harvia’s full clearances to combustible materials, and combustible structures need a proper insulated lead-through.
Good to Know
Does this flange replace the lead-through insulation?
No. Through combustible walls or ceilings you still need the insulated lead-through set (flange, Class A insulation, and protector) supplied with Harvia chimney kits. The WZ020115 collars the pipe penetration itself — typically in non-combustible panels or as the finishing trim.
What pipe size does it fit?
Harvia’s standard 115 mm (4.5″) smoke pipe used by all Harvia wood-burning sauna stoves except the Harvia 50.
Prebuilt
Sauna Brushes
Vents