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The new Viessmann 100 compact is not out yet, the old model is a very good boiler.

I have been fitting Viessmann Boilers since June 2007 and apart from the grey ignition blocks and a couple of Pcb's (old 100 models) I've had very few problems. I have fitted loads of the new 100 Range and have never had a fault. My son and I have attended the Viessmann Training Centre and...