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http://www.floorheatingsystems.co.uk/questions-about-underfloor-heating.htm[^]
Look at the running cost estimates in that link......maybe the heat loss in your room is too high. make sure you are filling the gaps between floor and skirting etc to stop draughts.
It is not just the temperature, it is the time it is on. You need to work out when you actually need the temperature, maybe you are unnecessarily heating the room when you are not there. I would start with 17'C and edge it up 1'c every couple of days until you find that point that feels comfortable, but not too warm, you only want to take the chill out of the air.
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£3-4/square metre?! My bathroom can only be about 6 square metres in total. Mind you, the kitchen has it as well and that's much larger. Watching my electricity meter spinning round, I estimated it at 1.5KW. Other literature says 150W/m2 is typical.
I will do as you say, but 17c sounds decidedly chilly. It comes on at 5.30 in the morning, so as about an hour to get up to temperature.
Thanks for the suggestion.
Regards,
Rob Philpott.
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You can also turn it off early.
For example, I turn my central heating off 30 minutes before we leave the house in the morning as there is still sufficient heat in the system to continue keeping the rads warm until we leave.
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I don't trust their running costs: their rate of £4/m²/year seems much too low. The Energy Saving Trust calculator http://www.energysavingtrust.org.uk/domestic/content/home-energy-check[^] suggests nearly £2k to heat a new, well-insulated 4-bed detached house (150m²) with electricity (underfloor), ie £13/m². reducing to £1340 (8.9/m²) with mains gas.
Note that the Handy Heat page itself says the system is designed to run the floor at 25-28C.
Fed up with the slow heating rate (and high cost) of the electric underfloor heating in our bathroom, I fitted a £23 2kW fan heater which does the job (warm the air) in no time, and only runs when required. I can cope with cold feet for a few seconds.
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you should post that on first world problems 
Amr Abdel Majeed
Senior Software Developer
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22 degrees sounds just right to me, if it's air temp where talking about.
Floor temp should be about four degrees higher.
Question, is the thermostat measuring the floor or air temp?
If it's measuring the air temp and you're having an extractor fan or similar contruction in the bathroom, the thermostat is effectively measuring the temp in the room outside the door, and the heating might therefore be constantly on.
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This is a vexing problem, Rob, because perceived heat will vary with DNA heritage and epigenetic expression of proteins regulated by genes as a result of life-experience of both you, and your ancestors.
And, conditions like leprosy, or peripheral neuropathy as a result of diabetes, for example, can mute nerve response.
Assuming you are not leprous and/or neuropathic, then we come to the complex subjective influence of intrapsychic factors in reaction to ... and shaping ... individual perceptions even of basic physiological parameters. Cultural context, set-setting, etc. 'Tis true: subjectivity rides the bucking bronco of physiology.
For example, we, intuitively, will say that this man: [^] appears to be having a hot bath.
But, what is his inner experience ? How would that inner experience be different if he were playing with a rubber duck, for example, rather than Choco. Is it possible that he actually feels cool ?
I think he's cool.
In other words, science may not be able to help you here, but do know: science is on your side (referring to science supporting you in your quest for algorithmic certainty, not to science actually in the tub with you).
cheers, Bill
«A man will be imprisoned in a room with a door that's unlocked and opens inwards ... as long as it does not occur to him to pull rather than push» Wittgenstein
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Can you believe that?
Chito is still alive and Pocho died of old age! 
Story[^]
Impressed! 
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Great Find, Super Lloyd, what a wonderful story. The fact that Chito sang "The Great Pretender" at Pocho's funeral is incredibly touching !
thanks, Bill
«A man will be imprisoned in a room with a door that's unlocked and opens inwards ... as long as it does not occur to him to pull rather than push» Wittgenstein
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To tell you the whole story I was looking for the tragic ending of Chito with some unfortunate "accident"...
Well it didn't happen!
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I think you may have gone outside the realm of what underfloor heating is meant to do.
Its objective is "to heat the room", not "to keep the floor at toasty-roasty happyfoot temperature".
Obviously, the floor will be warmer than the air a metre from floor height, which will be nice for your toesies, but setting the temperature at 22 means that you want all the air in the room to be that temperature, and it will break its balls to pump that much heat.
If you want the floor not to feel cold (which a wet floor in a bathroom always will), cover it with something that doesn't suck all the heat out of what it touches.
I wanna be a eunuchs developer! Pass me a bread knife!
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22 degrees is on the low end of the comfort zone, so it's nominally cool. I would put it at 25 or 26.
37 C is 99 F!!!
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams
You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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We have a programmable thermostat for the whole house system. It turns the heat up about 30 minutes before morning alarm, down about the time we leave for the day, back up again about 30 minutes before we go to bed (that makes certain we go to bed and don't keep working/reading/watching old movies.
From what you said, it might pay for itself the first year. Maybe you could install something like that for your bathroom floor heat system. (BTW, I always love complaining about when my luxuries aren't "just right" as the Goldlilocks thing goes!)
cat fud heer
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All morning I reporting messages and members...Didn't get the opportunity to even read a single programming question...
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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But it is so satisfying to delete all those messages, and know that you are a guardian of the netiverse. 
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So your the one! 
Once you lose your pride the rest is easy.
I would agree with you but then we both would be wrong.
In the end, only three things matter: how much you loved, how gently you lived, and how gracefully you let go of things not meant for you. – Buddha
The report of my death was an exaggeration - Mark Twain
Simply Elegant Designs Jim<</div>
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Listen, you're a good guy (that much is absolutely fruggin' obvious), so do me a favour, eh?
Know when to stop doing things that make you unhappy, and instead do things that make you feel happy.
The Interwebs are full of people who used to be good people, who got so sick of seeing only the cr@p that they lost the good and turned to the Dark Side, Luke.
CP is wonderful, and it's fun.
If that starts going out of sight, then change what you do at CP for a while, and get the wonderfulness and fun of it back.
I wanna be a eunuchs developer! Pass me a bread knife!
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on this article[^]?
I just put a bug report in on it, but would like to know if anyone else sees it.
What do you get when you cross a joke with a rhetorical question?
---
The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.
---
Do questions with multiple question marks annoy you???
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Looks like somebody who knows the things and can use it for its advantage respectively can piss the others. Try to Report as Abuse.....*lol*
And please it is not the author's (Moises Barba) leak!
modified 19-Jan-21 21:04pm.
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Yup, I'm getting it here, too. It just affects the section containing comments and discussions, not the article itself.
Will Rogers never met me.
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Getting it here too.
The difficult we do right away...
...the impossible takes slightly longer.
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Yes, evilness I see. 
/ravi
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Sorry but to show where they are weakening is not evilness!
If God wanted me to become a kiss-ass, then I would have become a suppository
modified 19-Jan-21 21:04pm.
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Yeah, when I tried to open one of the comments on the article.
«A man will be imprisoned in a room with a door that's unlocked and opens inwards ... as long as it does not occur to him to pull rather than push» Wittgenstein
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The hamsters at the bottom of the article look like they need to go on a diet!
Marc
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