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I want to replace a back boiler with a combi boiler. Can I use the existing piping?

April 26, 2017Boiler combi existing Piping replace

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I want to replace a back boiler with a combi boiler. Can I use the existing piping?

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The old piping for a back boiler unit will be removed when your new combination boiler is installed as it is plumbed in a completely different way. The pipes you have going to radiators can remain in place as long as they are in a good state of repair. If the new system is sealed this type of boiler puts the system, and your old plumbing, under a 1 bar pressure so any weak or worn pipes and valves may leak unless replaced.