The DHW is set to ECO mode. I would understand it if it was set as you say.
Evohome and OpenTherm boiler recommendations?
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Originally posted by blowlamp View PostMy boiler is set to ECO mode too.
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Originally posted by G4RHL View PostIt is of course possible that it is still in learning mode. I did not notice it as much early this morning before any heat or hot water was needed. I assume Evohome provides the time for the Eco function to work properly. What is odd is that if you switch the power off it looses the set time. Not helpful to those who rely on the programme in the boiler. No backup battery. Which reminds me I switched it off yesterday whilst I re-routed a cable and have forgotten to reset the time clock!
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Originally posted by kevinsmart View PostThe boiler DHW operation is completely independent from Evohome, Evohome doesn’t provide the time. The Eco learning is supposed to be based on usage, so I guess it’s essential that the boiler’s time setting is consistent.
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Originally posted by G4RHL View PostBut I have OpenTherm connected and the Manual says to use Eco mode with OpenTherm in order for OpenTherm to learn. I wonder if anybody has come up with an easy way t provide backup power to the clock on these boilers>?
I think the ECO learning days can be set between something like 3-10. I haven't set the boiler's clock but the function still works OK for me.
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Pleased to hear the boiler’s clock has no bearing on the mode setting presumably only if using an external system. If a user uses the programming within the boiler then a power cut and an unsuspecting user will have some issues. It could be me but I think bit by bit it is not starting up as frequently as it did. That is since I dropped the maximum power for central heating to just over 12kW.
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I'd suspect with a grant you'll be very limited to your choices, and the quality of work you will probably get @DBMandrake won't to be up the standard you expect. They'll throw the thing in. They'll probably make you go down the combi route, they'll not be interested in replacing the cylinder and boiler.
My best guess is they'll off you an Ideal Logic combi. Stay away from them at all costs.
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Originally posted by mtmcgavock View PostI'd suspect with a grant you'll be very limited to your choices, and the quality of work you will probably get @DBMandrake won't to be up the standard you expect. They'll throw the thing in. They'll probably make you go down the combi route, they'll not be interested in replacing the cylinder and boiler.
My best guess is they'll off you an Ideal Logic combi. Stay away from them at all costs.
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Originally posted by kevinsmart View PostThe boiler DHW operation is completely independent from Evohome, Evohome doesn’t provide the time. The Eco learning is supposed to be based on usage, so I guess it’s essential that the boiler’s time setting is consistent.
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Originally posted by mtmcgavock View PostI'd suspect with a grant you'll be very limited to your choices, and the quality of work you will probably get @DBMandrake won't to be up the standard you expect. They'll throw the thing in. They'll probably make you go down the combi route, they'll not be interested in replacing the cylinder and boiler.
My best guess is they'll off you an Ideal Logic combi. Stay away from them at all costs.
I'll keep people's suggestions in mind though, I might see if we can finance a new boiler (and radiators, and pipes, since most are on 8mm microbore at the moment) ourselves next year, but if I do that I definitely want OpenTherm.
To be honest for the small amount of hot water we normally use (shower, dishwasher and washing machine are all electric heating) having a cylinder hot all day long is a liability, and it's too small to run a decent bath, so I'd rather have a combi in this house and get rid of the cylinder, cisterns in the loft etc... there just isn't room in the boiler cupboard for a larger fancy un-vented hot water cylinder. I also want to get rid of Evohome control of the hot water as it's just too unreliable for that...Last edited by DBMandrake; 9 March 2021, 03:05 PM.
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Originally posted by DBMandrake View Post
I'll keep people's suggestions in mind though, I might see if we can finance a new boiler (and radiators, and pipes, since most are on 8mm microbore at the moment) ourselves next year, but if I do that I definitely want OpenTherm.
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Originally posted by G4RHL View PostI decided to keep my radiators when a new boiler went in 4 weeks ago as calculations showed all but two rooms were correctly rated. I was also advised by a couple of installers not to change the radiators but see what happens. I am also "on" 8mm microbore. No problems so far. It all heats up well. I think OpenTherm is still on a learning curve. In my case no issues pairing it to the Control Panel and wiring it to the boiler as it has 24volt connection points for the OpenTherm Bridge.
So apart from the dining room all the radiators in the house need replacing. There is enough silt in the radiators despite multiple attempts to flush the entire system that it would likely silt up a new boiler heat exchanger! Also the current hodge podge of piping through the house is unlikely to survive the change to a pressurised system without some remedial work...
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Originally posted by G4RHL View PostPleased to hear the boiler’s clock has no bearing on the mode setting presumably only if using an external system. If a user uses the programming within the boiler then a power cut and an unsuspecting user will have some issues. It could be me but I think bit by bit it is not starting up as frequently as it did. That is since I dropped the maximum power for central heating to just over 12kW.
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