Zugbegrenzer Z4 130 x 190 mm Caleffi Suitable for residential buildings and

Suitable for residential buildings and smaller commercial units with medium heating requirements

This generous size minimizes the effort required for refilling and ensures uninterrupted and long-lasting heating operation

making installation easy for both professionals and experienced DIYers

the boiler ensures trouble-free operation

including frame

Zugbegrenzer Z4 130 x 190 mm Caleffi Suitable for residential buildings andTrain 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