ncb-240e

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    Navien NCB-240E Combi-boiler ignite issue

    I have a Navien NCB 240E combi-boiler set up for hydro space heating and domestic hot water (installed 2019) I am having an ongoing issue and can't figure it out. My domestic hot water side is set to around 125 F. When I turn on a faucet to call for hot water, the flow rate is 0.6 GPM. The...
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    Navien Combi boiler flush question

    Hello, I am preparing to do a flush of my Navien NCB-240E combi boiler. I have it connected to a hydro air handler on the space heating closed loop side but for now I am only going to flush the domestic hot water side. In all of the YouTube videos I've watched the manifold systems have service...
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