Browse Forums Heating, Cooling & Insulation Re: In-slab heating- -questions 16Jul 06, 2007 10:55 am This is purely from an amateur point of view, but did you notice in the supplied link where it is mentioned that these heaters are "designed to be on for long periods of time". To me, this is a bit like hydronic/in-slab heating where the reaction time is slower than ducted heating so it's not very efficient turning it on and off constantly.
I was speaking to our heating guy the other day, he's a hydronic heating specialist, and he says the same thing - I think even more so for in-slab as he says it takes approx. 8 hours until it's fully up at the desired temperature. So I'm trying to put it gently into my Aussie husband's mind that the heating stays on while we go shopping. On low, of course, but on. Another thing the heating guy metioned is that because we tend to turn our ducted heating on and off all the time it might contribute to cracks in the walls as the house cools and warms. Re: In-slab heating- -questions 17Jul 06, 2007 2:48 pm Good info Mek. I have actually heard the weird cracking- stretching sound in a weatherboard home in the US whenever the heating kicked in ... one can imagine microscopic cracks that eventually become visible to the human eye.
Can you please provide the details of your heating guy, I can check them out on the weekend. I am also in Melbourne (eastern subs). cheers, vp Re: In-slab heating- -questions 18Jul 06, 2007 3:35 pm I hope you understood me correctly, vpande. I was talking about ducting heating in AUS where the turning on/turning off (and the cooling/warming of a house consequently) might contribute to cracks on walls.
If you're talking about cracking <b>sound</b> in the walls with hydronic heating, this comes from the water circulating in the pipes, as far as I know. I have no details of the hydronic heating guy, his company is sub-contracted to our builder, but I can ask if you want. Re: In-slab heating- -questions 19Jul 06, 2007 4:02 pm Mek - See my original post on this subject.
Unless you live in a constantly cold area - in slab heating - being a thermal mass based system - is better left on for long periods of time and it is not suitable for a on-off type environment. You might find his link of help http://www.energy-toolbox.vic.gov.au/dmdocuments/schools_information/secondary/secondary_supprt_matls/choose_heat_sys.pdf Steve Re: In-slab heating- -questions 20Sep 20, 2008 2:06 am mmm on reading all there is on this forum about in-slab floor heating, i am still confused about cost/type and effectiveness.
we currently have gas ducted heating, and yes its quite effective at taking the chill off and then heating the roof often too hot and then no happy medium; without the system switching off and on constantly. We are planning to build a large (well insulated/ICF) 2 storey house, with tiles on the ground floor and carpet upstairs, in Adelaide Perhaps i think its a gimmick or the running costs that have me at a doubt, to me its sounds like a really big electric blanket; does it really 'heat' the room? or give you the perception of being warm/comfortable (like putting a beanie on your head) walking on warm tiles? confused... -Nathan 2nd-Fix | Blog Building with Desyn Homes previously with the insolvent [url=https://www.facebook.com/7NewsAdelaide/videos/1162546323776021/]Endeavour Homes[/url] Does anyone have a suggestion for a good hydronic in slab heating speacialist who may be able to help me with an existing system and wether or not it may need a seperator… 0 5358 Not sure what council area you are in. Some LGA's allow zero lot retaining walls. This usually occurs in greenfield developments but not often in established areas. You… 1 8678 Thanks for that! Yeah, I was thinking timber front door. 10 22080 |