Originally posted by victorp1612
View Post
What would you like to see in evohome? (have your say)
Collapse
X
-
Originally posted by a62vw View PostDid you not set the heat curve and shift parameters on the boiler before attaching the Opentherm bridge?
Comment
-
-
Originally posted by DBMandrake View PostIf you mean having more than one schedule per zone - that doesn't make sense. A zone is a minimum divisible schedule unit. If you really want different temperatures scheduled in different parts of the same zone, make them separate zones. (Of course then you may run into the 12 zone limit, so that leads into your request for more zones)
If you mean you want the same schedule for HR92's in a zone but to be able to temporarily override one HR92 in the zone without it affecting other HR92's in the same zone - you can already do this by configuring the zone to be a multi-room zone.
In this mode overrides made at the HR92 itself are not propagated back to the controller or to other HR92's in the zone, so they can be individually overridden then will fall back into line with the next scheduled set point change.
There are other differences for a multi-room zone though - each HR92 uses it's own internal temperature sensor instead of having a single sensor for the whole zone. It is intended for use when you have a zone spanning multiple rooms such as a "bedrooms" zone so that each room's individual temperature is measured, but you can use this within a single room as well, especially if one end of the room has more heat loss than the other and measuring locally would be an advantage.
Originally posted by DBMandrake View PostAlready available. There are already API integrations with IFTTT, Amazon Echo, and many other 3rd party services. With a bit of code its even possible to connect to the API yourself to do your own logging or perform any actions that the smart phone app can perform.Last edited by Technomorph; 7 November 2018, 01:02 PM.
Comment
-
-
"Instead of using up separate zones for each, it would be useful to have the option of logically grouping the zones/rooms into Master bedroom"
Maybe I missed the point here. but this is exactly what I have. My single Master Bedroom zone contains three radiators - two in the bedroom and one in the walk-in dressing room.
Comment
-
-
Originally posted by chrisgare View Post"Instead of using up separate zones for each, it would be useful to have the option of logically grouping the zones/rooms into Master bedroom"
Maybe I missed the point here. but this is exactly what I have. My single Master Bedroom zone contains three radiators - two in the bedroom and one in the walk-in dressing room.
...and then being able to control the temp and schedule as a group, or independently.
Comment
-
-
1) support for more zones without needing a 2nd controller. I have 14 rads in my house and it's just a medium size 4 bed house.
2) fully customisable CUSTOM quick action and not just setting a choice of rooms and 1 temp and time for all. DAY OFF isn't of use because of the way the house is empty or not due to shift work.
Custom or day off should be effectively an 8th day that can be fully scheduled like any normal day (each room, time and temp) but selectable from quick action.
3) If I ask alexa to increase a room temp it should increase from the current actual temp and not the scheduled temp. It's obviously set too cold and that's why I want to increase it.
Comment
-
-
Originally posted by JamboV6 View Post1) support for more zones without needing a 2nd controller. I have 14 rads in my house and it's just a medium size 4 bed house.
3) If I ask alexa to increase a room temp it should increase from the current actual temp and not the scheduled temp. It's obviously set too cold and that's why I want to increase it.
Say your set point is 20 degrees but the radiator hasn't been on for long so that the room has only reached 18 degrees so far and is still warming. Under your scheme if you said "increase the temperature" it would actually reduce it from a set point of 20 (the current target) to 19. (one degree above the current measured temperature)
That doesn't make sense to me at all. An increase should definitely always be relative to the current set point, since you're saying you want it to be hotter than the current target. If the room hasn't yet reached the target then you just need to wait a bit longer, and in that case increasing the set point wouldn't speed that process up anyway.
If it can't reach the set point in a reasonable time (or at all) due to lack of heat output from the radiator, door left open etc, then asking the set point to be increased also wouldn't help anyway.Last edited by DBMandrake; 23 November 2018, 12:09 PM.
Comment
-
-
Originally posted by DBMandrake View Post...in that case increasing the set point wouldn't speed that process up anyway.
I have one room that heats incredibly slowly for various reasons. Like 3-4 hours to add 2C. But Evohome hasn't learned this (or is at the limit of its learned parameter range), so starts ramping down the power waaaaaay too early. To counter this, I often will set that room to 25C, and drop it back to 21C once the temperature is nearly 21C.
Comment
-
-
Here's an example of the room in question. It's my study. I was working from home this day.
You can see at 8:15, I increased the set point from 19C to 21C. The demand increased almost immediately and the temperatures reported by the TRVs started to climb. However, it wasn't until around 12:30 (4 hours later) that the temperature reported by the remote thermostat was almost at 21C. Despite that, the demand started to throttle back after an hour.
Screenshot 2018-11-23 at 12.14.07.jpg
Comment
-
-
Originally posted by DBMandrake View Post14 radiators, but how many rooms ? There is no limit on the number of HR92's you can have, only the number of zones. So if you have 12 or less rooms but 14 radiators, that's not a problem because you can have multiple radiator controllers per zone that work in tandem.
Originally posted by DBMandrake View PostI can't agree with your logic here.
Say your set point is 20 degrees but the radiator hasn't been on for long so that the room has only reached 18 degrees so far and is still warming. Under your scheme if you said "increase the temperature" it would actually reduce it from a set point of 20 (the current target) to 19. (one degree above the current measured temperature)
That doesn't make sense to me at all. An increase should definitely always be relative to the current set point, since you're saying you want it to be hotter than the current target. If the room hasn't yet reached the target then you just need to wait a bit longer, and in that case increasing the set point wouldn't speed that process up anyway.
Here is the original post
Comment
-
-
Originally posted by JamboV6 View PostYes i already have 2 rads bridged for one zone but due to the layout of that room and the environment differences from one end to the other, individual control would be a benefit.
Comment
-
-
Support for a Thermal Store rather than DWH Cylinder. More houses are using multiple heat sources with green actions in mind. this means the heating and water could be served from one tank. The control of this depending on the demands should turn on/off the relevant boilers at the right time.
Comment
-
-
Bearing in mind just how long this thread has been going, I have to wonder whether Honeywell has anything up its sleeve in the way of an updated heating control system that has downwards compatibility and market-leading enhancements? If I recall, people were asking for a WiFi extender over 4 years ago to reduce comms issues: nothing has ever appeared. It is now 4 months since I moved home and I left my 4 year old Evohome behind: apart from the control convenience that Evohome offers, I cannot really say that I am missing it. My stats show that even on a frosty day in Shropshire my 7am to 9.30pm heating cost (at 21C) is c.£2. Any smart heating control is unlikely to have a RoI, and £1000 is a lot to pay for control/convenience.
Comment
-
-
That might be true in some areas but for me I live in the country in a small microclimate and last year I managed to hi -14 degrees on the coldest day. I have to heat my house by fire(back Boiler) or electric boiler. While the back boiler is great and free/cheap energy. over night even a well stacked fire is not much use. or during the day while I am at work. so using electric to heat the house is needed. the more rooms I keep warm the more expensive it would be and full control of that room to room could save me up to £5 a day in heating. payback is quite easy at even half that in 1 year.
Comment
-
-
Originally posted by Behold81 View PostThat might be true in some areas but for me I live in the country in a small microclimate and last year I managed to hi -14 degrees on the coldest day. I have to heat my house by fire(back Boiler) or electric boiler. While the back boiler is great and free/cheap energy. over night even a well stacked fire is not much use. or during the day while I am at work. so using electric to heat the house is needed. the more rooms I keep warm the more expensive it would be and full control of that room to room could save me up to £5 a day in heating. payback is quite easy at even half that in 1 year.
Looking back at the daily stats that I kept, I saved more by adding a new condensing boiler to an existing Evohome system, than I did by adding Evohome to an existing system with a 12 year old non-condensing boiler some 3 years earlier. Evohome is a great and a generally reliable - but somewhat dated - product. That is just my opinion based on 4 years of use - through 2 controller iterations - and a couple of firmware updates.
Comment
-
Comment