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there it is so R0.17 + 0.15+0.68(first space)+0.1 ( ?first plastic )+0.68 ( SECOND ) +0.1 +0.68 (third ) +0.15 +0.68 inside air a theoretical...
I get what you are saying but that still looks like a dry sunny winter to me, its not much different here this time of the year except it is all...
in passiv haus terms, I dont believe they count where the energy comes from just total energy used. there are a few tweeks to your math if you...
I think its Anualy, it's supposed to be 10 % conventional housing 1200kw/m2a I think if you look at the site I mentioned above at some point it...
Welcome to the Efficient Windows Collaborative
I honestly dont believe in PV or renewables for that matter the way it is done comercially, that is a topic for another conversation, but just a...
So if were to consider the buffer zone at half the temp gradient 26.5*5/9=14.7C 2.8*14.7=41.2wh*24=989wday*31 31kwh loss for January compared...
I prefer passive, I'd rather stay away from any mechanisms, I like the idea of lots of windows, ground heat last I checked involved drilling...
yeah the tripples work out to about 25kwh/jan, granted I figured he had a point to make, him and all the german engineers involved in Passivhaus,...
the other thing corwin brought up for my design the buffer temp will be about half way between the living space and outside, that changes F to...
so 0.5*53=26.5btu/sqft/hr? 7.8wh*24=186wh still not right far cry from the 2k the metric method came up with wait * 10.76 = 83wh/sq meter thats...
you bring up some good points, the weight for example, in all honesty I havent yet really considered any kind of fancy window including tripples...
yes it is but something is not right, the way Corwin was doing it 1600 hdd * 0.5 U=600 btus loss, I need to look into this something is not right...
that is very different than my latest math
november through march is what concerns me 5132 hdd, now want there a way to figure heatloss based on hdd after all is a delta temperature...
looking at july arround 73-74F hdd evens with cdd so in theory a properly designed house should even up right arround there on it's own, this pos...
Description: Fahrenheit-based cooling degree days for a base temperature of 70F Source: Heating & Cooling Degree Days - Free Worldwide Data...
ok so lets start with some real numbers, I tried to look up the code requirement for conversation sake but came up empty, curently my thermostat...
funny definately not the bunch to do this, I doubt the coating does much for heatloss, so you can call this exercise for coated glass. I need to...
I was just going back and reading through and althou I am still not serious about expensive windows for the weight and cost factor I think I found...
