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    Vaillant Boiler Power Boost

    Many years ago I worked for a floppy disk manufacturer and was surprised to learn that for economy of manufacturing all the magnetic disks inside the case were 1.44MB. The cheaper to buy 720KB disks had their storage capacity limited by a notch in the outer case. Both disks costs the same to...
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    Vaillant boiler noise

    Hello I have a new ecoTEC 612 that, from the outset. made a very loud rumbling noise, at random, every day but only when power was modulated down for low heat demand. Of course it would not do it when my plumber came back to fix it so Vaillant were called. The Vaillant engineer knew from my...
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    Vaillant ecoTEC plus 612 query

    Hello I have a new Vaillant system boiler which is very slow to respond to heating demand. When it starts in the morning and there is a high demand for heat it only fires up to about 1/3 power and stays there for about 30 minutes, or more, before going up to full power. I touch the return pipe...
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    Vaillant ecoTEC plus 612 rumble

    Hello I have a brand new boiler installed and there is a problem I need your help with before I call the plumber back. When there is very low heat demand from the radiators, the boiler fires and for the first 10 seconds makes a very heavy, loud, rumbling vibration. It comes from within the...
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    Can you convert this to Gas ?

    Please see picture ... https://drive.google.com/file/d/0B-0MjSh79VlrM1ctTlV4elNQaUk/edit?usp=sharing I have taken this vertical rad out of my kitchen. It was powered by electric element only (water filled). I cannot find any makers marks. I would like to have it plumbed into my existing gas...
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    Why big boilers?

    Hello Intro: - I am talking system, not combi boilers here. I am generalising somewhat, but my observation is based on 7 fairly recent experiences. The question:- Why do some plumbers recommend boiler sizes 50%-100% larger than the energy saving trust sizing tool indicates. Reason for...
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    New boiler advice needed please.

    Hello everyone. I am new to the forum and would welcome some views on a quote I just had from a large nationwide supplier. Current system is in a 3 bed, 2 bath bungalow, vented HW storage, fully pumped S plan, 9 rads, 2 tanks in loft, 7 yr old Drayton (BG branded) wax filled TRV's. Boiler is...
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