Johntheo5's latest activity
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JJohntheo5 replied to the thread Tower ABV (ABBV1).Is the Boiler you have the CDI compact combi boiler?, if so, this has a internal bypass and unless you have TRVs on all the rads I...
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JJohntheo5 replied to the thread Tower ABV (ABBV1).Yes, but a constant pressure setting shouldn't be used with a ABV as it depends on the pressure (head) increasing as the flow decreases...
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JJohntheo5 replied to the thread Tower ABV (ABBV1).Have a look at your MIs, if you have a eCopy post it on here, your circ pump will/should have several options like the attached, you can...
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.Do you know if your car has this energy saving smart Alternator charging?, if so, then, its very advisable to get the battery coded/adapted.
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.Possibly, one of the "best" bit of data above, is, IDE01843 Battery voltage at rest 12.4 V although how they calculate that without a...
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JLots of data there. This is the one that stands out for a non-tech like me; 21/10/2025 IDE01834 Battery voltage 12.256 V (Engine Off)...
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.Jan 2019 (petrol) Polo, original 59AH Type EFB Battery 21/10/2025 IDE01834 Battery voltage 12.256 V (Engine Off) IDE01836...
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.I've been driving VWs for over 60 years, and the battery only had to be replaced in one, a 6V ,1963 Beetle, after 6 years, all the...
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JJohntheo5 replied to the thread How to service Grant Vortex 36e, 36Kw keroscene combi boiler.Here is a photo of one I definitely know was in service for ~ 35 years on a Riello burner in a Firebird SE Boiler, its not mine by the way.
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JJohntheo5 replied to the thread Bypass valve.This graph is possibly a good indication of the pressure loss. Its ~ 2.7M at 1550LPH so even at this very high flowrate the residual...
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JIdeal have advised "its not necessary in most cases, it's a good addition to the system so it could be worth adding it on ". So they...
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JJohntheo5 replied to the thread Bypass valve.As above, the "normal" way of increasing the effective pump head is to install a LLH (Low Loss Header), where the boiler HEX head losses...
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JEngineer is checking with ideal.
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JJohntheo5 replied to the thread Bypass valve.1Kwh = 860 kcal and there are 60 minutes in a hour. (860 = 3,600,000/4186) Some use a very long winded formula but I've used this for...
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JJohntheo5 replied to the thread Bypass valve.Its quite easy to calculate the flowrate as long as you have accurate flow and return temps, you said you were buying more accurate...
