Vitotrol 100 Wired Open Therm Programmer (LV) & Room Stat with Lead

£116.16 inc VAT
3 In Stock

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


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