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Posted by HeatPro on June 03, 2009 at 10:09:58:
In Reply to: hot water prob on eco max 824e posted by David Mooney on June 03, 2009 at 08:26:02:
Often, there isn't enough flow from a kitchen tap to activate an instantaneous water heater; that is trying to heat a cup of water with a heater large enough for two houses.
You have a combination problem of a heating repair and a plumbing repair. If the heating repairman opens an outlet with a big flow near the boiler hot water outlet and hot water comes out quickly when opoened at that point, there is a plumbing problem further down from that point, like a one-handle faucet and/or shower valve.