Room temperature overshoots the thermostat setting by several degrees before the Viadrus furnace shuts off.

Safety: Control adjustments should follow the Viadrus manual.

• Relocate thermostat: Place the room thermostat in a representative room away from direct sunlight and drafts.
• Lower flow temperature: Reduce the heating flow temperature setpoint or adjust the heating curve on weather‑compensated controls.
• Increase pump overrun: Allow the pump to run longer after burner shutdown to distribute residual heat.
• Enable room influence: If the Viadrus controller supports it, enable room sensor influence so the control adapts to actual room temperature.