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Hi Sirs
I need to go further into the floor heating issue. hope experienced guy can give me some help. The key issue as follows:
# what material tube is the most raliable type
PEX\PB\PPR\etc?
# is there the load calculation and pipe layout software for floor heating
# if it's feasible for cooling at summer ?
thanks in advance
regards
LC
lc
it has been some time but i use to design underfloor warming for Freezer jobs we did.
I will look for the old data on flows and type of materials
The flow rates were low as i recall
The material was a plastic pipe 1 in diameter .
if i find more i will send it to you
We had some kind of calculation for BTU per ft as related to the pipe.
thank you for your kindness:)
best regards
LC
LC- Check out a site called HeatingHelp.com. It's run by Dan Holohan-one of the best writers/teachers in the hydronics industry. In a section of the site called the Library, you can find a link for a Wirsbo installation guide, as well as links to sites with Heat Loss calcs for radiant. Give it a look-you won't be disappointed!
pex-a is the most reliable choice .
one of the famous company who produce under-floor heating pipe and has much experiences in design and installation this system is REHAU CO.(www.rehau.de).
cooling although depends on your dew point temp. and your application and I think it dosnt get us more than 35% efficeincy.(have a pleasure with a wet floor!!)
Not sure about the technical side of things here but, last year I worked on the WW HQ site in Syd. They used 1/2 plastic pipes - lots of about 1m diameter spirals covering large floors of the atriums. They used heating and cooling.
Generally we use a calculation of about 7 watts / sqft.
It is a polyethylene plastic tube, 1" diameter.
Glycol is heated by a discharge line heat exchanger.
You better have a refrigeration system that is running at least 20 hours per day or you will be looking at supplementary heat.