Tech EU-401N PWM Solarregelung 🌞 mit Grafikdisplay Fitting the secondary combustion chamber is

the secondary combustion chamber is equipped with ceramic moldings

as it allows longer operating times without refilling

Connection for electric heating: 1 1/2" IG

Robust construction for longevity

shut-off valves

Tech EU-401N PWM Solarregelung 🌞 mit Grafikdisplay Fitting the secondary combustion chamber isEU 401N PWM Solar differential controller with graphic display Product overview The EU 401N PWM controller is a straightforward and reliable solar controller specifically designed for modern solar thermal systems. This device monitors and controls the temperature difference between the collector and the storage tank. The integrated graphic display enables intuitive operation and provides a clear overview of the system status at all times. Ideal for