The Viessmann CM737 is a programmable heating controller designed to control your heating system efficiently, providing comfortable temperatures when you are at home and energy savings when you are away.
Features and benefits:
- Ergonomic user interface featuring an 'OK-button.'
- Large LCD (Liquid Crystal Display) screen.
- 7-day heating program to match your lifestyle whilst maximising energy savings
- 4 independent temperature levels per day (from 5 to 35 degrees centigrade).
- Holiday button savings energy by letting you reduce the temperature for 1 to 99 days
- Built-in memory holds the user program indefinitely
Fits:
Vitodens 100-W B1KA B1HA