Vaillant EcoTec Plus 831HE

Features & Benefits:

A Rated Boiler

- Latest generation high efficiency boiler

High condensing efficiency

- Compact dimensions - 720 x 440 x 335

- Large surface area stainless steel heat exchanger

- Main system components built in (pump, expansion vessel,

automatic air vent and bypass, frost thermostat)

- Built-in status / diagnostic display

- Single electronic circuit board