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Enter your state, city, or zip code to find a navien sales rep or distributor near you. By replacing your old, in-efficient boiler with a brand new, a-rated boiler you could reduce your energy bills by up to â£300 per/year think of it like this - if your current boiler is 65% efficient, this means that for every â£1 you spend on your heating, 35p is quite literally being wasted by comparison, modern boilers are 90% + efficient this means that a new boiler will have wastage of less than 10p.

Added: 2020-05-09 | Category: one
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