The ESBE thermic valve is a boiler by-pass valve that prevents cool return water temperatures in a hydronic heating system. The purpose is to safeguard conventional non-condensing boilers against corrosion from condensation that would result if a minimum flue gas temperature is not maintained.

• Non-condensing boilers matched with high mass, low temperature systems, i.e. concrete radiant floor heating or snow melting systems

• Gravity conversion systems, which typically have large volumes of water

• Water heating systems where solid fuel boilers are used to feed storage tanks

Features:

• The thermostatic element within the valve allows flow to by-pass the system until the

appropriate fluid temperature through the valve is reached.

• Avoids sustained low water temperatures which would otherwise cause the water vapor to continually condense inside the boiler

• Protection from thermal shock within noncondensing boiler

• Self contained thermostatic element with no adjustment required