Johntheo5's latest activity
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JJohntheo5 replied to the thread UFH running too hot.The dT is the difference between the UFH flow and return manifolds, normally temperature gauges on both manifilds,
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JJohntheo5 replied to the thread UFH running too hot.Any idea of the manifold flow and return temps?, can then calculate exactly the UFH/boiler output. Total lool(s) flowrate...
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JJohntheo5 replied to the thread Flow and return temp at the boiler 5c even when rads balanced.If your boiler is the one shown in these MIs then it doesn't mention any adjustment, it just looks like a simple, maybe spring loaded...
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JJohntheo5 replied to the thread Flow and return temp at the boiler 5c even when rads balanced.It certainly will/should be reading accurately but that doesn't mean that the actual rads return are at the same temperature IF the ABV...
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JJohntheo5 replied to the thread Flow and return temp at the boiler 5c even when rads balanced.Does the boiler display flow and return temperatures or are you measuring the return (and flow) at the boiler. The MIs for this boiler...
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JJohntheo5 replied to the thread UFH running too hot.When the UFH is only on, (no rads) are the loop flowrates the same as when both UFH & rads are both on? How many UFH loops and total...
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JJohntheo5 replied to the thread Hot Water Running Out.Ring your plumber and ask him does your cylinder have a pump with secondary return. You also stated your usage is exactly the same as...
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JJohntheo5 replied to the thread Bypass valve.Could be sludge partially blocking the boiler HEX and pump impeller or/and pipework, system may require a power/chemical wash,was the...
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JJohntheo5 replied to the thread Bypass valve.Circulation flow seems a problem, you can see below that if 75C is the flow temperature then the return must ba as low as 25C with a...
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JJohntheo5 replied to the thread Bypass valve.Gas consumption, 067023.71 minus 067023.635, 0.075m3= 0.075*11, 0.825kWh= 0.825*60/3, 16.5kWh, at 90% boiler efficiency = boiler output...
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JJohntheo5 replied to the thread Bypass valve.No need for a engineer. Just your smart phone, as stated above just take a photo of your house gas meter readings exactly 3 minutes...
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JJohntheo5 replied to the thread Bypass valve.So, its running continuously after a few cycles?, if so the outputting ~ 18kW. The two thermocouples show a rad output of ~ 17.2% of...
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JJohntheo5 replied to the thread Bypass valve.Not sure where I thought I saw this but your model certainly doesn't seem to have one so better from a trouble shooting point of view...
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JJohntheo5 replied to the thread Bypass valve.That boiler has a internal ABV (automatic bypass valve), If it took an hour for the boiler outle to feel like 70C then something...
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JJohntheo5 replied to the thread Low Cold Water Pressure Inside on Unvented Cylinder.I would get a isolating valve and pressure gauge installed where that black plug is and leave it permanently installed, as a first step.
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