SAV Standard

5 Commonly Cut Corners in Hydronic Underfloor Heating Systems

An in-depth technical analysis aligned with SAV principles — understanding the true nature of radiant systems and closed-loop engineering.

1) Reduction of safety assembly

Core issue: Even in a closed-loop system, dissolved oxygen is always present.

Consequence: Formation of magnetite sludge, reduced flow rate, and long-term equipment degradation.

2) Manifold without flow meters

Without flow measurement, precise hydraulic balancing of each loop according to heat load design becomes impossible.

3) Using non-EVOH compliant pipes

Oxygen diffusion through pipe walls compromises the integrity of the closed system.

4) Lack of zoning control

The system operates based on peak load, losing the fundamental principle of radiant thermal regulation.

5) Absence of operational standards

No periodic control of pH, dissolved oxygen, and electrical conductivity.

6) The “full-package brand” misconception

A sustainable system is not defined by using products from a single brand.

SAV operates on the principle: Standard → Solution → Responsibility.