Browse Forums Heating, Cooling & Insulation Re: Insulating 7 Start + new house 19Aug 11, 2018 7:32 pm planeguy Be very careful comparing European U-Values, and Australian ones (ie WERS compliant). They are different, with the same window getting a lower rating in Europe than here (Europe assumes a larger window than Aus/US for the test, and so frames are proportionally smaller, and thus contribute less losses) - see http://www.paarhammer.com.au/blog/u-val ... australian Also, when comparing other overseas markets, places like NZ often lists the glazing U value, not the glazing/frame U value (at least in marketing materials) I agree, the difference will be there, but it won't be that significant. E.g. for a frame width of 80 mm, the Australian test window will have only around 7% of more frame when comparing to European test window. For each window, I have U values provided for both glazing and frame+glazing. Re: Insulating 7 Start + new house 20Aug 12, 2018 6:35 pm alexp79 planeguy Be very careful comparing European U-Values, and Australian ones (ie WERS compliant). They are different, with the same window getting a lower rating in Europe than here (Europe assumes a larger window than Aus/US for the test, and so frames are proportionally smaller, and thus contribute less losses) - see http://www.paarhammer.com.au/blog/u-val ... australian Also, when comparing other overseas markets, places like NZ often lists the glazing U value, not the glazing/frame U value (at least in marketing materials) I agree, the difference will be there, but it won't be that significant. E.g. for a frame width of 80 mm, the Australian test window will have only around 7% of more frame when comparing to European test window. For each window, I have U values provided for both glazing and frame+glazing. Not sure where your 7% comes from. Using your assumption of an 80mm frame, the Aus window (by area) is 66% glass, 34% frame. The European window is 78% glass, 22% frame. Now assuming the glass part is like some figures I have found for NZ triple glazed 46mm units (R1.81) that shows the frame is weak spot. Now I am not saying your window choice isn't fantastic, but just be careful not to make a direct comparison of U value when they are not directly comparable. Yes well there solution is to blame everyone else while I a 65yr old woman with major medical problems have to just continue to boil water and wash myself in a bucket… 2 16018 If you make sure all taps inside and out are turned off, what does the water meter show if you leave it for a while. 2 20235 13 6632 |