Is Vaillant really better than Viessmann?
In this Video I Install a Vaillant ecoTEC plus system boiler with mixers and pump groups. I originally quoted a Viessmann set up but the customer expressed more interest in what Vaillant had to offer so I have maximized the boiler potential by using the VR71 Wiring center. Paired with the sensocomfort thermostat and Flamco pump groups this should make the Vaillant as efficient as possible and bring it up to Viessmann standards ;).
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