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The vaillant ecotec green iq does extremely

The vaillant ecotec green iq does extremely well in this category, however it is significantly more expensive that the next most expensive boiler, which is the worcester the heating output is better on the worcester but the hot water performance and efficiency are better on the vaillant.both come with a great 10 year guarantee. Older, open-vented non-condensing boilers take air in from inside your home newer, sealed.

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