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It is a bit counter-intuitive though. According to the Evohome manual 'partial is for very well insulated homes where outside temperature has a minimal effect on heat losses'. One would expect then...

Well, beta? My Evohome was delivered a month ago with FW version 19.31. That version had the Smart Features. Elsewhere on this site it turns out that 19.31 is a beta version. It looks like Honeywell...

Well, at least now you know you have to be careful not to select that you don't want to see them anymore :D

Ehhh, (short) press ' Settings', then select 'Smart Features' ? ;)

Exactly what I saw earlier. So no OT for me until that is fixed.

Ah well, I think on/off works just as well, taking into account the boiler then also modulates its heat output to the set (55C)...

Set it to partial and yes, the boiler heat demand increased immediately. Looks like it now translates the heat request of the office (84%) 1:1 to the boiler again.

About OT and load scaling, does...

This weekend the temperature in our living zones (three zones that are connected and share the same temperature setting) was 0.5C too low, and noticeably so. Increasing the setpoint increased the...

It reaches the target temp later and then more or less keeps it:

1672

The optimal start time is set to 3 hours. By the graph it looks like the office heats up nicely for 2 hours after which it...

After only two days load scaling behaves exemplary. No more 100% boiler requests just to heat up a bathroom. Out of my 11 zones only one still undershoots. This is always a difficult room (office)...

Press and hold settings for a couple of seconds, acknowledge the warning and select ' System summary'. You can see the per-zone heat demand as well as the resulting total demand from the boiler.

Thanks for pointing that out, I never new I could change the offset. Also nice that the offset can be above 0 for a boost. Completely perfect would be if I could select the zones that eco/boost...

Three weeks ago I installed a new Evohome controller and it came with version 19.31. Last Saturday I requested the beta via the Honeywell webform. I received a mail to verify my request on Monday and...

Good explanation. Much clearer than the official one I read in the Residio mail after asking for the beta. Thanks!

I'll set load scaling to 'Normal', give it a few days and see what happens. BTW,...

So scaling does not do away with the 'ask for 100% as soon as a setpoint differs more than 1.5C' using an R8810? That is a pity as that might solve the problem I raised elsewhere on this site. One...

19.33 was installed yesterday and the hallway zone is now behaving as expected; the setpoint only rises to the set temperature. Nice!

One question about the 'advanced load scaling' option: does...

I requested the beta with Honeywell. Let's see if that updates it to 19.33.

Oh, and by the way, this forum seems to be more prudish than my grandmother; the intensifier I used to emphasize how new...

Ah, seems I found an answer for this problem elsewhere in this forum. For some reason my brand-******** new Evohome controller has a beta FW version that exhibits this problem. Should be repaired in...

Ah, so. Well, then it will be the OpenTherm monitor for me. I'm not planning in keeping it in between indefinitely; just for some time to find out what goes on (and wrong) between Evohome and Remeha....

Is Ebus fully compatible with OpenTherm?

1) AS: 02.00.19.31, WiFi: 02.00.17.00

2) I'm graphing the temp data with a home automation system, Domoticz. This basically gets these temperatures every couple of minutes from Honeywell via my...

Yes, sorry for the misunderstanding. I was aware the monitor itself needs power; my question was regarding the R8810, will that still be bus powered by the monitor. Reading back not a very smart...

As part of me catching up with the latest Evohome I have a question.

Ever since installing the new Evohome controller I notice that one of my zones gets a higher setpoint than necessary. This zone...

By the looks of the setup of Jack007 the R8810 still gets its power via the monitor. I'll go and order it and then replace my on-off BDR91.

Hi,

Does anybody know what happens to an Evohome R8810 when I put an Opentherm monitor between it and my boiler?

I guess it keeps on working but would like to know for sure before I order the...

Apparently :-)

I replaced my (sticky) 2013 Evohome wall unit with the latest invocation two weeks ago and did not realize that this had changed. I presume that Evohome retrieves the outside temp...