go for a worcester greenstar junior or cdi condensing combi, bit more expensive than some makes but very reliable, you'll get what you pay for. the worcester website can help you choose depending on house size, but the more powerful the boiler the better the water output as sean said.
Ian
December 2009
combi boilers are condensing and go for 28kw or bigger as water is better, they're more energy efficient
sean
December 2009
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