zoothorn

Well mine is totally different. At its quietest its made the spare room its in ( cylinder and indoor box thing) impossible for anyone to use as a bedroom. And at the dead of night, the droning heating noise it makes is intrusive enough to wake me, a normally heavy sleeper, 3 rooms away. Enough i can hear the dull vibrations through the pillow, and a prominent irritating whining higher pitched pump noise intermittantly onto this too. For the 2 beds closer to it, at dead of night, it is -hugely- disruptive. A fridge is completely incompatible as a comparison. I could live fine with a fridge noise next to my bed. This is wholly different. If I had had a son or daughter in this spare room here, it would have ruined their room/ and life as they'd have to sleep insittingroom. So it is utterly unfeasable to put the damn heating on overnight. I do not want 8 x rads on overnight. Ive never had or known any house to have its rads on overnight. Ive had a major dissapointment just now hoping to find this morning 8 am delayed start to the rads setting i could finally change to get the rads performing early, as they should, but nothing of the sort found. Just 24:00 - 24:00. Im fkn furious now. I have had it. So Ive sent email saying I demand it be removed, and a suitable replacement installed, and I'll be making formal complaint. Now, only from a hardware pov, not imstaller pov, I will say its not fit for purpose as I have exhausted all possible options.

I think Ive cracked it. I should put the CH on overnight, & live during the night and go to sleep during the day. when its cold. You sound like my mum 'oh just put a blanket on'! Ive accepted most of the house will be cold, is cold. Not the new top room tho/ this is the only one I will not accept as is, especially if the one below's laughing at me all toasty. At least I'm fat that really does help i think.

Haha. My point is joe it's nit fir me to make this judgement. Ive moaned it is tho for as long as you: but who is responsible for it being nit fot.. is ebony & ivoreeee... polar opposite opinions.

Totally understand Onoff. If I knew putting it on for a bit overnight (Vaillant concur too i think, of sorts: we recommend an overnight setback setting of min 3* less than your day temp they say) would help.. Id put up with this sweaty & wasteful idea I hate the very idea of. But I can't put it on overnight because during heating-on: it produces noise. Like ProDave who also wants his to be quiet so sleep is not disturbed or interrupted -a normal prerequisite- he gets his to shut the fk up overnight, using a night setback. I think its ProDave. Or Declan. No, look: its the morning rad cold issue, & general low rad temp issues that are my probs. Ok some AM rad delay setting I've finally had proof exists from Vaillant today, so I can now go in its brain & tell the 8am delay to STOP. With luck. So leaving the only things perhaps you guys can help with: 1) the flow temp thing (establishing if it's fkd or not, definitively) & 2) the specific room cold issue (weird extention: warm lower room w'small rad, far colder top room w'huge rad) a tricky one, but if flow temp is being a fkn jackass then it might just be this (how to up flow temp tho.. might be a whole new Vaillant battle). 3) maybe general BTU opinions: I will get all info now.

I think I have found that it -is- not functional, due to finding 20*C too low on the flow temp. That is simple to understand, that is what I wrote in the 2nd sentence. This is the main point of the post. Whether that is a reasonable assumption (for me) to make, is the secondary point.

As said its been on for months now. If a setback setting is normal-to-use, & sleep is prevented from having it on overnight (plus I never would want heating on overnight anyway- this is not a normal setting) then I simply expect it to be functional used like so, this is a normal ssettings situation, so normal functionality should be expected. 35*C flow temp, delay rads until 8am, coming on overnight.... are the 3 reasons it is, currently, not functional. If I can address/ change the first two.. then it is mostly functional (i would make a stab at suggesting) And then just leaves the overnight coming-on for me to threaten legal action, all fkn guns, big boy pants on last chance salloon try at Vaillant. My last gasp. thx zH

@TonyT I cannot establish if it is functional you see. I -think- I have at last found it's not due to the flow temp 20*C too low... but should I expect to read this under the indoor unit, with my rads going, & 55*C put into it, instead of the suggestion of turning all rads off bar one?? (I will try this test once v.cold patch eases) Im not asking you, that's a rhetorical Q. But it does suggest it is -not- correctly functional. But how can I say. I asked Vaillant re. the flow temp 35*C, but no response just a finality now "we've done all we can", when Ive only just found this is in question once sensor thermometres got.. & the noise overnight continues: I know -only- that this noise is it not functioning correctly. That is definite. But they will not it seems now, resolve it tho. They have just replied (!) with a settings tweak to try later, in this unit ^ (installer level section this clip will likely avoid) to address the delayed 8am cold rads thing. Finger's x'd on this & will solve 1 of the 3 issues if so. I might have to accept as is/ get results on this 1 of 3.. & just accept the other 2. Its too exhausting.

Effectively what Ive done for months 18.5*C day temp, just leave as is because ramping it to 22* for evenings/ mornings it can never achieve, it always hovvers around 18-19* (once its spent 8 hrs getting there) anyway so whats the point: plus PeterW saying 'dont d*ck with it leave it alone'. .. but I cannot leave it on 24/7 if thats what you suggest, it must be turned off overnight or I cannot sleep.

Ok but if you were to have your CH running overnight, would it make noise enough to be disruptive to sleep? Is this the core reason maybe you choose to use the overnight setback setting? (I know someone on here mentioned they put theirs to setback overnight, for this very reason, ie because they just want it totally quiet at night: the very core reason I choose to use mine).

Hi Tony. Its a VRC700. But warning: its like going into a tardis- I wouldnt want anyone go into it or they'll never come out. Appreciated- zH

Ok yup understand there's a 'setback' during the day. But this complicates a little, because I'm only concerned with an overnight setback. In my system, the setback only applies to a night-time situation: with a crescent moon symbol designating night. What I'm trying to do is this. While waiting on Vaillant, I'm just applying some 'go back/ check over basics' logic. Might the fact that I have chosen a (night) setback.... might this be the reason, or part of the reason why my rads are still cold 7.30am (instead of going full on to get some heat going, like, I imagine every other person who has any type of CH system might reasonably expect, putting theirs on at 6.30am) ?? To help I'm best asking someone else, using a (nightime) setback, look at how their asap performs at 7.30am, to extract some logic as to what to expect from mine. thx zH

Ok. I know someone on here uses a setback setting with their ashp. That is why I am asking this here; their use of this function.... & how their rads are affected by this function, specifically 1st thing AM. thx

You misunderstand. Totally and utterly. The reason I am asking is, although I think I know the answer most probably, I need to know how other are using theirs/ how it is actively being used, rather than any 'off the shelf' www answer what it is for (a night setting likely the www answer) IF it is a setting a user can choose to use, perhaps & this is a hypothesis: it might be assumed that they somehow know that it might have some major caveats to the system working normally by choosing to use it. It might be perhaps, that yes you can choose to have an overnight setting nicely low it's reason being the system is prevented from coming on, but, with doing so..................................................... you are (unknowingly) choosing for these ASHP systems to not operate well. Normally even IE, how any 'usual' CH system would: heating off overnight, set on for 6.30am start, by 8am you have a warm room. Simple as. Mine is getting warm not at 8am , but 4pm. I need to know WHY WHY WHY. I AM TRYING TO FIGURE IT OUT!!!!!!!!!!!!!!!! For eg: if ProDave uses a setback for same reasons I am, similar overnight time periods even roughly tsimilar, & his ASHP rads are getting his rooms properly warm at 8am....................... it is evidence, in my logic, that my system should be doing similarly. Or at least -capable- of doing similarly. If this in turn suggersts a fault, or a settings thing, is the next logical step -I- have to persue. Bc Im getting fk all help from Vaillant, fk all help from installers. OK? Understand? So again, your asumption is this & that (& in turn encourages agreement, in turn a consensus 'pack mentality to attack, culminating in vile replies).. when actually yet another post is simply misunderstood, here a very simple request of other's useage/ POV.

One thing I need an explanation on. Anyone with ashp's: "Setback" temp setting. Does anyone have/ use this, why do they use it/ when? It must have a specific purpose it is designed for. thanks.

@ToughButterCup yes I understand this, thanks for that/ clear & easy to follow reply. I am getting through it. I'm doing the flow temp findings, btu's & rad bleeds, but also having to do the vaillant calls same time, and work (thankfully my 1st order of year- huge 1st priority to do to get money in).. & this damn door too, plus roof fluff job ongoing. thanks. zH

Hi Joe- honestly, I threatened the guy overseeing whole grant in council dept (yes big boy pants on) of trading standards unless leak not fixed asap, 3x calls. He called my installers & demanding they fix it 3x. Who ignored him each time. Only once asked vaillant, to email the installers with their specific engineer notes 'x not connected to y properly' did they relent & sent a chap. A month later. Whose only 1/2 fixed it. So not as bad, but still in each of my 2x DHW hours ~1 litre water emmited down front of house (red streak now) to a damp patch ground level. ~2 litres emitted before visit. Ive given up on this leak- just cant do it anymore. I can -only- cope approaching vaillant re. the system things (still waiting in queue.. 22 mins for 2nd day trying).

Thanks. Waiting right now, for 2nd day, 25mins to get through.. I can show them its been changed.

Hi PeterW. Thing is with giving my BTU results.. is I cannot understand the findings given in reply, unless like jfb, its really simple-clear. [I know here your addressing Onoff & Im not meant to comprehend this ^ reply tho. I get that]. But for eg Onoff's reply before: I appreciate explaining his findings on my BTU number I'm asked to give: but in all of it I could only understand 'that rad should be killing it' (tho even this I assume means 'the rad should easily be big enough', which is useful enough). Or the 12000 figure: how am I meant to make any sense of such a number? is it watts, kilojoules, or maybe zoothorns? (a measure of coldness + dampness + how far up my plums retreat).

haha. Im going for the cup against Onoff. again. I shall prevail, him sloppy 2nds.

@Cpd well you might be living in a dog kennel I dont know. Sorry but I'm cold at 8am simple as. 0.4*C increace in 4 hours in a new build room. You think I shouldnt complain about this/ a system with repeated faults, this poor performance seemingly another. Wrong- I bloody well should be complaining. & many saying here its not even fit for purpose.

@ProDave all good ideas: but believe me I've tried & tried all way up the chain, multiple times, months. Nothing worked, stall/ no call backs. Its was only when I got onto Vaillant & -demanded- they send info to high enough up the chain (who fwd'd it down) of the incorrect 'group head.. expansion tank' innitial incorrect attatching info/ reason for the leak, that they lazily finally relented & sent out an engineer. Who hasn't fixed it. I get distinct impression similarly at each step in the chain: A) its a grant, you got it foc, lump its foibles/ be grateful etc... & B) we're welsh, we fit this for you english, lump its foibles etc. Its deliberate. And I admit I'm defeated by it (anyone would be). So Vaillant are my only avenue: I must not go hammer & tongs at them, but super careful & patient, hence the protracted time involved in anything changing & me asking so much on here. thx zH.

Hi dpm. Sounds like some good reasoning, I can understand the basics of what you're saying, I think. If this is true & the site chosen for the thermostat is your point & totally incorrect, then I'd agree this would be installer error -not- Vaillant's, like the leak. And I'm stuffed to have it repositioned then/ no point asking, altho to move it is feasable I could do if I had the correct lead. thx.

Hi Onoff. Alas I cannot make head nor tail of half of this. 'rated as nom'.. '12000 BTU'.. 'FO ref' (shorthand/ abbreviations.. wasn't it you hollerin at me-?!) Ive no idea. I know only nom means nominal yes, but even so I can't comprehend 'the .. rad is rated as nominal' or the 12000 figure. I do understand sentiment of 3rd sentence I think. And FO I think means f**k off. thx.

Hi joe- what time did you switch heating on ? (or assume you have a heating on time ~6.30am or something normal maybe?). What is your flow temp settting you have chosen tho? Its this setting (within your digital controller), relative to what you are actually reading/ measuring/ at the pipe itself/ it'd be useful to know if poss. Thx. 21*C in the morning?! jeesush. I can only get this after mine's run for 10 hrs, & only then in my small thermostat spare room with cylinder in!

BTU calcs for new extention 2 rooms: Top bedroom = 3078. Rad size: 1800 x 700mm. Double "22" type. Workshop below = 4121. Rad size: 1200 x 600mm. Double "22 type". Trouble with this calculator, is no option of "timber frame" or even "block" (for the "what is the outside wall?" Q). If I put in 'insulated brick cavity", I get 4121. If I put in '105mm brick', I get 7856. So, above I've gone for the only one with 'insulated' included. thanks zH. Hi ProDave, yes I hinted this in 3 emails last 2 weeks, pls to call me in each (polite emails back but no call): but now with more certainty (after many readings a similar 35*C ) I can hammer this point home. This is exhausting too tho, v. time consuming. But no work so do have time. But I now sense stall from them too innevitably annoyed at so many times Ive had to call, so getting them out for visit no.9 is going to be blood from a stone I know it. Plus always threat of "£90 call out charge if they find nothing wrong" so if they were to say "no its fine, it can only do 35*C bc of your settings" or something... I get a bill to rub my nose in it. urgh. 12.9*C in my new top bedroom at 7.45am today (& only 14.1*C at 9am)!! I've been giving them these figures too over last 2 cold weeks.