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Post by rocketmanbkk on Apr 21, 2018 17:33:43 GMT
Wet underfloor heating
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Post by tomplum on Apr 21, 2018 18:05:42 GMT
I've never done any Rocky, It just never took off in my neck of the woods, folks is too poor here,
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Post by woodbine66 on Apr 21, 2018 18:10:03 GMT
Same here. I'm sure there's a market for it round these 'ere parts - but I don't get involved. Others know what they're doing, so let them get on with it.
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Post by rocketmanbkk on Apr 21, 2018 18:19:01 GMT
Ok chaps
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Post by boilerdoktor on Apr 21, 2018 18:21:04 GMT
I ve fitted a lot over the years, am in two minds about it
1) expensive ....a rad for a room is about £100.....ufh is prob £600
2) when it warms up it can take 24 hrs to cold down, not great if you get a good spell of weather
3) sight glasses can become blackened, pcb can fail, actuators can fail...all costing 💰 money
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Post by Deleted on Apr 21, 2018 18:21:18 GMT
What do you want to know rocky ?
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Post by dickpuller on Apr 21, 2018 18:23:23 GMT
What do you want to know, I’ve done miles of the stuff!!
We we’re installing UFH in rural Scotland when it had never been heard of down South.
I could bore you to death on the subject😀😀😀😜
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Post by rocketmanbkk on Apr 22, 2018 7:15:36 GMT
I’m not looking at installing it.
I just wanted to know about the manifold. How they work.
There’s obviously a flow & return to the flow & return pipes. It is a case that all the pipes off of the maniflow end back one or the other? Same as the ch flow & return having different pipes teed in etc.
Cheers
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Post by crowsfoot on Apr 22, 2018 7:48:33 GMT
My firm had a lot of problems within a block of flat lets when the underground pipes kept' bursting a few years ago.
It eventually had be be all ripped out although it was fine for 20 plus years!
We have U.F.H. in one of my firms office buildings, so I suppose I could sneak into the boiler room and take a few pictures of it, although I don't really know that much about it myself.
Tappy, |
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Post by Tam The Bam on Apr 22, 2018 14:48:41 GMT
What do you want to know, I’ve done miles of the stuff!! We we’re installing UFH in rural Scotland when it had never been heard of down South. I could bore you to death on the subject😀😀😀😜 Especially the tenements Dick when the cunt below you came home bladdered and thought it was a good idea to make chips, Maryhill Roulette I think it was called. |
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Post by dickpuller on Apr 23, 2018 18:30:37 GMT
I’m not looking at installing it. I just wanted to know about the manifold. How they work. There’s obviously a flow & return to the flow & return pipes. It is a case that all the pipes off of the maniflow end back one or the other? Same as the ch flow & return having different pipes teed in etc. Cheers There’s a Flow & Return to the UFH Manifold. The water temperature needs to be regulated at a certain temperature, depending on the floor design & floor surface temperature. Mostly, but not always, the temperature is regulated at the Manifold, this is done be reducing the ‘mean’ water temperature by reintruducing the cooler UFH system Return water to a blending valve & then circulating that water around the UFH loops. The Manifold has all the loop connections; Flow & Return, though as described above - the Flow has more Return water than high temperature Flow water. The loops are generally designed to a set maximum length, this makes using a standard domestic Circulation Pump easier. Notice I don’t use the word ‘Pump’, in sealed Central Heating systems it’s not a ‘Pump’ it’s a Circulator. Circulators have a ‘head’ - 5 & 6 meter in standard domestic ones. What does that mean? Well, think of the ‘Big Wheel’ at a Fairground, the only energy that’s needed is the energy to get you from the ground up to the top(12o’clock), the coming back down bit is free, gravity takes you back down👍 Gravity is fucking wonderful!! So a 5 meter head circulation pump lifts water 5 meters, easy, the system is a 5 meter big wheel, OK? The other consideration is Flow Rates & that’ll depend on pipe resistance, bends etc. So, the circulation pump is sized based on the system ‘head’ & ‘Flow rate’, simples!!! Oh, as with a standard CH systems, if there’s enough head to do the ‘index’ radiator, you know, the one in the Bedroom at the end of the Hall, that’s fucking miles away from the boiler! Then there’s enough ‘meat’ to do the rest of the system. So if we keep our loops nearly the same length, it’s easier to use a bog standard Pump(no fuck!!) circulation pump. Manifold & UFH controls can get over complicated, and frankly a waste of money. As for types of UFH Systems & Floor construction, I may go into at a later date - if I can be arsed!! For now, if the hard of thinking have any question & want to be completely patronising, fire away!!! |
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Post by dickpuller on Apr 23, 2018 18:37:44 GMT
What do you want to know, I’ve done miles of the stuff!! We we’re installing UFH in rural Scotland when it had never been heard of down South. I could bore you to death on the subject😀😀😀😜 Especially the tenements Dick when the cunt below you came home bladdered and thought it was a good idea to make chips, Maryhill Roulette I think it was called. The first tenement flat I bought Tam, the cunt upstairs would come home pished & his Record Player would repeat the same record all night, all fucking night!!! Or he’d take some auld whore home & be shagging all night. Of course, shagging some auld bint was like throwing a sausage up a close, she was more than likely doing her knitting, while he was up & down like a Violinist’s elbow!! Ah, life in a ‘Single End’. |
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Post by crowsfoot on Apr 23, 2018 19:01:43 GMT
These pictures that I took today of our office ufh and I think that they sit nicely along side Dicks helpful post - you can clearly see the blending valve Dick mentions just below the pump, err no, circulator  . So thanks for that one Dick I've learned something already! My other question Dick is what are those red things on the top manifold for? They seem to be made of glass. I'm thinking some kind of flow setter? Attachment Deleted Attachment Deleted Attachment Deleted The 22mm copper pipes along the bottom are the heating flow and return direct from the heat source and the clear plastic pipes behind are the flow and returns from the individual under-floor heating loops, pressure gauge bottom left with drain off valve, air vent top left, regulators for each loop on the bottom but what are those ruddy red glass tubes on the top for?  |
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Post by tomplum on Apr 23, 2018 20:08:59 GMT
good and informative pics Tappy, thanks, qwerty
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Post by dickpuller on Apr 23, 2018 20:09:42 GMT
These pictures that I took today of our office ufh and I think that they sit nicely along side Dicks helpful post - you can clearly see the blending valve Dick mentions just below the pump, err no, circulator . So thanks for that one Dick I've learned something already! My other question Dick is what are those red things on the top manifold for? They seem to be made of glass. I'm thinking some kind of flow setter? The 22mm copper pipes along the bottom are the heating flow and return direct from the heat source and the clear plastic pipes behind are the flow and returns from the individual under-floor heating loops, pressure gauge bottom left with drain off valve, air vent top left, regulators for each loop on the bottom but what are those ruddy red glass tubes on the top for? Did you get that camera from a 30 pence Woolworth’s Lucky Bag C??! FFS!! On the ‘Return’ Manifold(with a Blue handled valve) is the ‘Flow Meters’ and With Loops of indentical length they can be regulated the same - you’re are all too Cock! As it says on the tin, they regulate the flow & can be adjusted by rotating them. Now, a smart arse would ask; why adjust it? Well, they should be adjusted in the same way as you’d adjust a Lock Sheild valve on a Radiator, to achieve the correct Delta T. Each loop needs to be adjusted to achieve the correct ‘mean’ water temperature, that in turn will effect the floor surface temperature. Now, let’s basically look at UFH. UFH is for the most part a Radiant Heat, in fact across the Pond they call it Radiant Heating. The human body, that’s you & me rsoles, loses about 65% of our body heat by radiation. So if you minimise that Heat loss to the human body you keep it warm, right! One of the Laws of Thermodimamics is ‘Heat always goes to Cold’. So you walk down any Chilled Aisle in Asda(other shops are available near you) & you think it’s colder than the rest of the Supermarket, ballocks, you’re losing your body Heat to the Fridges that’s all. That smelly old cunt’s BO is going onto your Lurpack😀😀😀 So, the UFH is just working in reverse of the Fridge down Asda. That’s the main reason that UFH is so comfortable for humans. On the Flow Manifold is the actuators, they’re controlled by the thermostat in the area that the loop serves. Told you I’d bore the tits off you!! |
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