Browse Forums Heating, Cooling & Insulation Re: Maintaining good air quality in an energy-efficient hous 2Mar 29, 2013 2:44 am The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Maintaining good air quality in an energy-efficient hous 6Apr 07, 2013 9:10 am My storybook home build: https://forum.homeone.com.au/viewtopic.php?f=38&t=57987 Re: Maintaining good air quality in an energy-efficient hous 18Aug 13, 2013 11:52 pm There are several heat exchangers (HX) available now at a (semi) reasonable price with around 90% efficiency. They take (cold air) in from the outside and "dump" it into your house while extracting the same amount of air from inside your house. The "magic" is that the two air streams both pass through the HX, and while not physically mixing the air, the heat in the "used" air is used to heat up the incoming "cold" air so you're not just blowing your warm air outside. P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Maintaining good air quality in an energy-efficient hous 19Aug 13, 2013 11:57 pm Stewie D ..... Quote: A semi-related note is venting both kitchen ranges and bathrooms to the roof space, which I would have thought is a Very Bad Thing ™, but seems to be done in 99% houses Venting a kitchen fan into the ceiling space has been illegal for at least ten years. Venting a bathroom fan into the ceiling space is not recommended as you will end up with condensation then mould up there - two things you want to avoid. Stewie Correct, well almost totally correct, you can only vent your bathroom exhaust fans into the ceiling IF you have a tiled roof with no sarking. Given that energy efficiency requirements almost force you to have sarking with tiled roofs ................ BUT, If you have an (opening) window in your bathroom mechanical ventilation is NOT required...But it's still a darn good idea !!! P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Maintaining good air quality in an energy-efficient hous 20Aug 14, 2013 9:21 am Yes PD and you can also do it if you have eaves vents or open eaves as well ( last time I looked anyway ). And because of the mould and condensation problems it is why I mentioned my Quote: not recommended I think you and I and most others would agree the more ventilation to the outside for these two rooms the better. Stewie go upvc window frames ensure insulation under colorbond. not just sarking, lighter color roof also not sure if you have seen this viewtopic.php?t=5823 last couple of pages… 4 110525 How do you remove one of these ceiling air con vents? And is it possible to disconnect the duct joined to the vent from inside the house, without going into the roof cavity? 0 5905 Hi all, sorting out the ducted air con for a 350sqm double story house. Does this placement sound reasonable to you? Also, I plan to have 6 zones I think. Living room… 0 0 |