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Thread ID: 108070	2010-03-12 19:51:00	Hydronic Under Floor Heating	McChief (15671)	PC World Chat

Post ID	Timestamp	Content	User
866553	2010-03-13 20:23:00	,As does stainless (the proper plumbing material) So much so,it is never used.	Cicero (40)
866554	2010-03-13 21:07:00	Hmm. I'm not a fan of it. Hot air rises for one thing. For another, I live in a cold area, I have wooden floors. There are a lot of gaps and so on in some outer bits as well. The only heating I have is the woodburner in the lounge and I have never had cold feet anywhere except out in my laundry - which is semi outside of the house and has the gaps in it. hot air rises but heat travels from hot to cold areas which is why you you want floor insulation. i used to flat in some old wooden floors with enough gaps that the carpet used to lift up in the breeze ! you loose a huge amount of heat through leaking floor boards. Seems like a waste use a heat pump to heat the water which is then piped. It would be more logical to just use a straight heat pump air conditioner. yes/no the problem with heat pumps is your only heating a small part of the house, then theres noise and how the air moves dictates how the heat travels. if its mounted up high your trying to heat the room from top down which is not good. Copper Pipes buried in concrete - need to be well lagged to ensure the lime in the concrete does not corrode them and cause leaks -expensive to put right. Problems with plastic pipes - high coeff of expansion of plastic. ( Ok for cold water - problems with hot.) if i remember right the pipes are some special plastic and i would think they do not actually get all that hot. your not actually raising the floor temp up a whole lot. instead of high temp, low volume of heat (so to speak) its low temp but large amounts of it. its the same energy as say a heat pump but spread over a larger aera. the floor acts as a big heat sink so retains heat. its a bit hard for me to explain but you don't feel hot like you do with a fireplace or a heat pump. you don't really notice the temp, its just comfortable. its nice and even, no cool spots because the heat pump doesn't blow into that corner. the heat rises off the floor unlike most heat pumps or fire places which heat the ceiling first.	tweak'e (69)
866555	2010-03-13 21:19:00	So much so,it is never used. Only used by proper plumbers ;) Parts of Rotorua find copper sort of evaporates, and exposed copper pipe in the vicinity of kids is none too durable either.	R2x1 (4628)
866556	2010-03-13 21:45:00	The cheapest way to experience underfloor heating is to rob a bank. I understand it's a necessity in all the best jails. Only criminals deserve such consideration for their comfort.	Peterj116 (6762)
866557	2010-03-13 21:48:00	Only used by proper plumbers ;) Parts of Rotorua find copper sort of evaporates, and exposed copper pipe in the vicinity of kids is none too durable either. Next door neighbour is a metallurgist,says don't rely on stainless not rusting.	Cicero (40)
866558	2010-03-13 23:04:00	Next door neighbour is a metallurgist,says don't rely on stainless not rusting. That's right, you need to know your austenitics from your martensitics.............	Terry Porritt (14)
866559	2010-03-13 23:22:00	Strangely enough, some plumbers have the idea that 316 SS does not corrode too badly at all, regardless of South winditics and the Docistics ;)	R2x1 (4628)
866560	2010-03-14 01:03:00	That's right, you need to know your austenitics from your martensitics............. Mind you,my man is from Birmingham and not sure he can be relied on.	Cicero (40)
866561	2010-03-14 01:08:00	LOL. But does he have a snappy process name like "Hydronic" to baffle the consumer with?	R2x1 (4628)
866562	2010-03-14 03:24:00	LOL. But does he have a snappy process name like "Hydronic" to baffle the consumer with? You wouldn't know,the Brummy accent is so awful,you can't understand every second word.	Cicero (40)
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