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EnviroLink Forum • View topic - Zero Energy house experts seem to not exist

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PostPosted: Fri Jun 08, 2012 12:14 am 
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I was just looking at a new book specifically on zero energy houses (that term was part of it's title). The preamble was interesting but never said anything new to me. What I really wanted was a whole book on specific topics only mentioned in one paragraph or not at all. Some of my favorite solutions to extreme efficiency were not even mentioned. Instead, the discussion was primarily better uses of fuel and electricity for a "net-zero" energy home (makes more electricity then the energy it uses and sells it to the grid to balance out to not be using more energy then it makes). If I want a book on true zero energy homes (no utilities, no fuels), looks like I need to write my own. One example of a complete loss of an important topic was radiant heating. Radiant heating results in lowered costs of heating by a factor of 2 in many situations (especially in well-insulated buildings)... not even mentioned. Solar thermal heat... only mentioned for hot water production and then only a few sentences... no mention of choices of transfer fluids. Absolutely no mention of batteries as the author assumed everyone is grid-tied. Air-to-air heat exchangers was given a few sentences and even cast doubts as to it's usefulness... for me it accounts for close to half the energy savings narrowly beating insulation and totally eclipsing all other aspects. I have taken the courses for certification as a Canadian heating system designer and took their formulas and recommended methods to the extreme of not needing a furnace and the numbers show that a better heat exchanger and thick enough insulation can eliminate a furnace... or pull back slightly and a thermal solar system with radiant heat (and in the walls) will result in substantial cost savings.

Got to write that book right away as it is needed badly.


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PostPosted: Sun Jun 10, 2012 2:15 pm 
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From what I have read of your education, you have come quite a ways. I'm with Illinois Renewable Energy Association and we had on display the 1 watt house. It's only suppost to loose 1 watt/M*2 I assume per hour. The walls were one foot thick with foam insulation. There is one guy in the area I know of and he may be more of a hobbyist. His profession is designing and marketing his company's LED lighting. The passive house is the house of the future and is needed to accelerate now.

If this crosses a line that looks like spamming let me know and I will be happy to delete my post.


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PostPosted: Sun Jun 10, 2012 6:03 pm 
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PostPosted: Sun Jun 10, 2012 7:04 pm 
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PostPosted: Mon Jun 11, 2012 12:16 am 
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PostPosted: Mon Jun 11, 2012 1:16 am 
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