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punky · 28-07-2006, 16:00

If they are anything like the traditional old boilers, the heat exchangers are made of cast iron which are no longer made... So yep, extremely expensive to replace.

A heat exchanger transfers the heat generated from the boiler etc, into the water, giving you hot water for your radiators or taps.

28-07-2006, 16:00	#2
punky Inactive Join Date: Jun 2003 Age: 45 Posts: 14,750	Re: Heating : Heat exchanger split If they are anything like the traditional old boilers, the heat exchangers are made of cast iron which are no longer made... So yep, extremely expensive to replace. A heat exchanger transfers the heat generated from the boiler etc, into the water, giving you hot water for your radiators or taps.