draft limiter z4 130 x 190 mm Lüfterrad CO at 13% O₂: 79

CO at 13% O₂: 79 mg/m³

white plastic housing not only underscores the modern design but also the robustness of the device

Defro Optima Ekopell 18 kW - Efficient and environmentally friendly pellet heating system

Safety and ease of use

All collectors look fantastic on your roof

draft limiter z4 130 x 190 mm Lüfterrad CO at 13% O₂: 79Train limiter Z4 130 x 190 mm The Upmann Z4 draft regulator is approved for use with oil, gas, and all solid fuels, whether in new installations, renovations, or all conventional systems. These systems require a specific and constant negative pressure for operation. If the chimney draft exceeds the value for optimal draft, the damper of the chimney draft regulator opens, reducing the negative pressure by allowing additional air to flow in. Once the