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Thread: Evohome is Noisy - please help me

  1. #191
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    Quote Originally Posted by filbert View Post
    Me too.

    Some form of sound deadening wrap plus a standalone sensor is on in my plan - I need a table top sensor as the bedroom has sloping ceilings and the only vertical wall space available is right by the door or over the radiator. I recall such a sensor being mentioned but can't track it down at the moment
    I use a Honeywell T87RF2033 in my lounge. I leave it on a side table.

  2. #192
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    Quote Originally Posted by oshingler View Post
    From my observations I think the noise problem is mainly to do with the type of radiator and how it's fitted to the wall. The motor noise is amplified when attached to the valve. On newer radiators in my house they are quieter, and the same on smaller radiators - it's the older and larger single panel radiators fitted to the cavity walls with un-baffled metal brackets that are the noisiest. Without a large-scale test of different radiator types and wall fixings, it would be very difficult to narrow down the exact cause.
    Just my two-penneth on that point.... We have every type of radiator in our house. Old style panels, newer double panel convectors with the internal fins plus a refurbished, incredibly solid Victorian style radiator in the loft. For us it makes no difference. They are all noisy.

  3. #193
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    There is some resonance through the rad itself but in my tests I could tell a lot of noise is coming from the body of the HR92 itself resonating. The most effective method for me was to cover the HR92 and use an external room thermostat.

    If the HR92 body was made out of different materials or just with thicker walls I think it would help. If a different type of motor or gearing was used it could help. I don't think much attention was paid to operation noise when it was being designed.

    Since I made the 'acoustic cover' for my bedroom HR92, I very rarely notice it and it doesn't wake me up like it did when I first installed it, but some of that could just be me getting used to it and regarding it subconsciously as background noise.

  4. #194
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    I have the same problem with the noise. I have to say Im very disappointed in Honeywell. Some have pointed out that its quieter than other brands -but who cares about that when your getting woken up?
    Comparing something with something worse is not a great way to decide if something is good. But for those that dont seem to have a problem - well I envy you -if your one of those people that can sleep on a plane as well - then I hate you

    Im not allowed to put them in the bedroom as the one in the hall wakes us. Thats a BIG issue. Yes you do get more used to them - but not enough, and thats small comfort for visitors who stay over -many of whom get woken by them.

    What is doubly frustrating is that there is no need for them to be this noisy, they just need to be designed with this more in mind. They dont have to react quickly - minutes would be fine. With that in mind the motors could be designed to run much slower and geared appropriately. This would get rid of most of the noise.
    I think Honeywell have failed to do their sums correctly when designing these. Remember TRV heads dont make ANY noise, thats the starting point when designing these - obviously they have to produce some noise so the engineers pick a number (or guess) and design to it - they have picked the wrong number.

    All joking aside, its a good system, but this would be a deal breaker for many people.

    As a side note there is also a flaw in their thinking in their opentherm implementation. Some boilers (Vokera Unica HE) disable the front panel controls when in opetherm mode (stupid I know but they do). If you buy the Vokera openetherm controller it allows you to set the max DHW temp and Heating temp. Evohome does not. For DHW you get a temp that seems to vary from user to user. in my case water from the tap at 65degrees which is too hot and causes the boiler to fluctuate in temp when running the shower. Also you get the maximum boiler temp for the heating when any valve asks for 100% heat. When different valves open/close this can induce a boiler over-temp lock out - aside from radiators feeling scalding hot.
    - you may say this is a vokera issue - and i dont have a problem with that -its a crap imlementation, however as a 3rd party system, evohome should be flexible and allow you to set the heating max temp (or max demand %) as a minium.

  5. #195
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    Quote Originally Posted by DIY2 View Post
    I have the same problem with the noise..
    I guess there has to be some noise and even if it is reduced there will be some who will find it an issue. However, to be actually woken by the Evohome TRV operating to my mind indicates perhaps some should consider their sleeping habits. I know, I am contentious in saying that, but such is the level the noise these make, to be woken by them would indicate a person is not really asleep and, whilst not aware of it, is perhaps already coming around from such. That being the case, if one needs an alarm use them as such. My bedroom TRV has woken me up. But that is not entirely correct. It comes on at 06:00 and for me to hear it I know I am already surfacing from sleep and in my case it is a welcome intrusion for I normally get up at 05:15 and it means I have overslept! If it came on during the night when deep sleep pervades I certainly would not hear it and such wold be the case for many.

    If they are an issue in the bedroom there is an easy answer. Adjust the coming on time to one when you know you should be getting up or beginning to surface. It is an easy answer and avoids any intrusion. If one person surfaces earlier than his or her partner then adjust for the sleepiest. If you are getting up before the radiator has come on it is never that cold (I can only speak from living in the North of England) and as you are getting up you can always go to a warmer room for your first coffee. I really do not see this as the big issue some want it to be.

    Now if you really want noise try the first issue of the LightwaveRF TRVs, they really were horrendous!

  6. #196
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    Quote Originally Posted by G4RHL View Post
    I guess there has to be some noise and even if it is reduced there will be some who will find it an issue. However, to be actually woken by the Evohome TRV operating to my mind indicates perhaps some should consider their sleeping habits. I know, I am contentious in saying that, but such is the level the noise these make, to be woken by them would indicate a person is not really asleep and, whilst not aware of it, is perhaps already coming around from such. That being the case, if one needs an alarm use them as such. My bedroom TRV has woken me up. But that is not entirely correct. It comes on at 06:00 and for me to hear it I know I am already surfacing from sleep and in my case it is a welcome intrusion for I normally get up at 05:15 and it means I have overslept! If it came on during the night when deep sleep pervades I certainly would not hear it and such wold be the case for many.

    If they are an issue in the bedroom there is an easy answer. Adjust the coming on time to one when you know you should be getting up or beginning to surface. It is an easy answer and avoids any intrusion. If one person surfaces earlier than his or her partner then adjust for the sleepiest. If you are getting up before the radiator has come on it is never that cold (I can only speak from living in the North of England) and as you are getting up you can always go to a warmer room for your first coffee. I really do not see this as the big issue some want it to be.

    Now if you really want noise try the first issue of the LightwaveRF TRVs, they really were horrendous!
    Hi - sorry but not at all helpful nor understanding.

    I really dislike posts that trivialise other peoples issues and worse, then try and place the blame for people getting woken up by HR92s onto the people themselves instead of the product.

    HR92s DO make a noise, thats a fact. Visitors noticce and comment on it -so its not just me. You dont have a problem - great for you, and perhaps the ones you have are quieter (they are known to vary from unit to unit) or perhaps you are used to a higher ambient noise ( I live in a very quiet rural house) or perhaps you would be surprised at the level of noise thay produce in my house? Whatever the reason, please dont trivialise issues other people have. Its very dismissive. Getting woken up early is not trivial, neither for me nor for friends staying over nor for others on this forum.

    I agree, of course people are not in a deep sleep when the heating comes on - that doesnt mean its ok for it to wake you up earlier. Your easy-answer suggestion (whilst I appreciate the effort) of using the heating as an alarm clock is quite silly. I live in scotland, it gets cold - I dont want to wake up in the cold - thats why I have a heating system that can come before I get up. Why should I accept waking up in the cold - just because I invested a lot of money in advanced heating controls? I didnt have to before with cheap TRVs.

    As I said in my post I dont care if other manufacturers are more noisy - that doesnt help - this issue (granted for a minority) need not exist. It can and should have been designed out. I know, I'm an electronics engineer and understand motor drives well.

    I hope if Honeywell produce another generation of these, they pay this some attention and re-design the drive. I supect not.

    Anyway thanks for the chat.

  7. #197
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    I do think it's worth trying something like a lithium spray grease on the inner teeth of the main gear which sits on the TRV body and is separate from the HR92 to see if this reduces/alters the sound to a tolerable level. I'm fortunately not bothered by the sound that comes from the HR92, but I am aware of it if I listen out. I thought I'd do some testing today on a couple of mine just to see whether it makes a noticeable difference as I'd been using some of the WD40 white lithium grease spray for another purpose and noticed today's posts. I found that it definitely reduced the sound level emitted (far less chattering of the gears) when the HR92 first calibrates itself after being re-attached.

  8. #198
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    Also, if the sound is felt to be too intrusive and if you are able to do it, a piece of wood wedged between the radiator and the wall can help reduce the resonance created by the radiator and reduce its amplification of sounds. As mentioned though in a different posting elsewhere in the forum, we are all different. Some happily live next to main roads and railway lines. I am pleased I don’t!

  9. #199
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    Quote Originally Posted by DIY2 View Post
    I agree, of course people are not in a deep sleep when the heating comes on - that doesnt mean its ok for it to wake you up earlier. Your easy-answer suggestion (whilst I appreciate the effort) of using the heating as an alarm clock is quite silly. I live in scotland, it gets cold - I dont want to wake up in the cold - thats why I have a heating system that can come before I get up.
    I set the rad to come on at about the time we wake up, which avoids the problem. It works for us as we don't get up straight away and the room has time to warm up.
    However, it does mean that I can't use optimisation as that would make the rad come on at variable times, depending on how cold it is.

    I gather there used to be an option to enable optimisation on a zone basis - that would be much better than the present all or nothing.

    I haven't got round to adding a separate room sensor and wrapping the HR92 in sound deadening material - so I guess that means the above method is good enough for the time being,

  10. #200
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    Perhaps I am fortunate in that it is not important to have a room up to temperature when I get up as rooms heat up quickly anyway and it is never that cold to be concerned about it. The house may drop to 12C or less on the coldest nights, (I live in the NE of England) but the warmth is noticeable within 10 minutes of the heating coming on and even then 12C is not cold. I ran optimisation for some time after I first installed (December 2014) but it failed to impress me. I found it erratic. It would bring the heating on far too early and never seemed to learn that a room is up to temperature in about 10 to 15 minutes or getting close thereto. I abandoned it. My house is a detached 4 bedroom, new in 1997 and am still on my original boiler!

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