15 to 21kw or 21 to 26kw boiler?

10 Jan 2006
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United Kingdom
Looking to replace my oil fired Camray 3 70/90. Output of existing boiler is 20 to 26 kw.

The Grant Vortex range have an ECO Utility model that has a range of 21 to 26kw, but they also have a Pro Utility that does 15 to 26kw.

The boiler is in my garage and it powers a 250 litre heat store - never had a problem with the existing boilers capability to maintain the heatstore and hot water.

Am I better with the 21 to 26 or the ECO model with the wider range of 15 to 26kw?

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