Johntheo5's latest activity
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JJohntheo5 replied to the thread Tower ABV (ABBV1).OK then, the only in theory "perfect" way is to open up all the rads (TRVs etc) to give full circulation, then check what mode the pump...
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.They work on a pretty wide voltage range from a minimum of say 11.6V up to a maximum of nearly 15.0V depending on the charging voltage...
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JJohntheo5 replied to the thread How long should a 12v Car Battey last?.I just missed having a starting handle when I started driving, (don't forget to take your Model T out of gear before using it).
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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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