Stainless Steel – Lightweight, Durable, and Future-Proof

Stainless steel has become the preferred material for modern heating circuit distributors in recent years. The non-rusting steel (mostly AISI 304 or 316 stainless steel) impresses with its exceptional corrosion resistance. Even under fluctuating temperatures, aggressive heating water, or mixed installations, stainless steel remains permanently stable. It does not develop stress cracks, verdigris deposits, or hazardous material wear.

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Brass – proven, but not always optimal

For a long time, brass was considered the standard material in heating installations. The material is tough, pressure-resistant, and easy to work with—ideal properties for a conventional heating manifold. However, with increasing demands for efficiency and longevity, its weaknesses become increasingly apparent.

Brass is significantly heavier than stainless steel and can develop lime and zinc deposits over the years. In heating systems with hard water or oxygen ingress, this often leads to cloudiness, verdigris, and even material efflorescence. In addition, mixed installations (e.g., stainless steel pipes combined with brass manifolds) carry the risk of galvanic corrosion, an electrochemical process that causes gradual material degradation.

Technical and Environmental Advantages of Stainless Steel at a Glance

Stainless Steel in Practice

Installers particularly value stainless steel manifolds because they are low-maintenance and integrate seamlessly into modern heating systems. They work reliably in combination with heat pumps, solar thermal systems, or condensing technology, even at higher operating temperatures. Additionally, they are fully compatible with stainless steel, composite, and plastic pipes without causing galvanic currents.