Ed Minch
  • Chestertown, MD
  • United States
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Ed Minch replied to Bud Poll's discussion Are "Stack Effect" and "Chimney Draft" the same?
"Hey Bud Seems like your description: "A chimney has only one pressure boundary pushing air into it resulting in a continuous flow of air which exits without the need for another "delta-p" at the other end" doesn't jibe with…"
Nov 15, 2013
Ed Minch replied to scottscontracting's discussion Is my HVAC Guy correct? 2 systems instead of 1 system with Dampers
"Not knowing your climate zone, here are some thoughts. 2500 ft2 of well insulated and sealed building should only need one system.  In our 5000-5500 DD, we go to about 4000+ feet (basements not included) with one system. The trick is in the…"
Nov 1, 2013
Ed Minch commented on Greg Labbe's blog post No Title
"Comment by Ed Minch just now Delete CommentBottom line, if the Bonus Room can’t be designed out of the plans, then put it on a separate controlled zone, make sure it’s really well air sealed by testing it with a blower door…"
Nov 1, 2013
Ed Minch replied to Bud Poll's discussion Hot air language
"Bud I think I have come up with a way might make almost everyone happy: Hot air rises while denser cold air falls, but since gravity is the force that is causing it, it is the cold air that starts the cycle. Ed MInch"
Oct 25, 2013
Ed Minch replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"Brad, my belief is that "it depends" is so much a factor here that a study would be meaningless.  The extremes would be if the batt has fallen at one end, and would be insulation properly contacting the interior drywall and no wind…"
Oct 19, 2013
Ed Minch replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"Covering the kneewall back serves 3 purposes.  1) it prevents the batts from falling off later on 2) it forces the batt to contact the drywall 3) it prevents wind washing. This is why it is very hard to measure the effect of covering the…"
Oct 18, 2013
Ed Minch replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"Anthony I am not getting that you need to cover the kneewalls according to this provision. You can have an airtight kneewall with no back on it.  I think what they are talking about is "below" the kneewall, between the joists. By the…"
Oct 18, 2013
Ed Minch replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"Anthony  Can you cite the code section that requires a back on a kneewall? thanks Ed Minch"
Oct 18, 2013
Ed Minch replied to Bud Poll's discussion Hot air language
"Bud What you are saying makes sense: "The cold air ends up at the bottom because it is heavier. The hot air moves to the top because the cold air displaces it." However, if there were no warm air to get out of the way, the cold air would…"
Oct 9, 2013
Ed Minch replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"As has been said - very hard to quantify because the starting point varies so much.  Bud - house wrap is an anti-vapor barrier but I get what yo are saying and we use rigid foam to combat this,   An unquantifiable component is the…"
Oct 8, 2013
Ed Minch replied to Bud Poll's discussion Hot air language
"Bud "Hot air rises" is true, and I think there is nothing confusing about it. 1) What we want is a blanket of cool(er) air coming through the soffit vents and rising along the rake of the roof to go out the ridge, this takes the warmest…"
Oct 6, 2013
Ed Minch replied to Andy Gostisha's discussion Looking for Thermal Imager in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Be careful, you might be setting yourself up for a patent troller trying to get a monthly fee from you.  Should we all be getting an assurance from our suppliers that they will defend us if this happens?"
Oct 4, 2013
Ed Minch joined allen p tanner's group
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment you have to sell, trade or wish to purchase.Please post the equipment age, serial numbers, condition, warranties and asking price.See More
Oct 4, 2013
Ed Minch replied to Bud Poll's discussion Hot air language
"Bud Hot air DOES rise, but cool are also falls.  You don't get one without the other.  It sounds like you are giving cool air the power to mystically de-levitate itself. I'll keep saying "hot air rises" because it is…"
Oct 4, 2013
Ed Minch replied to Chris Stratton's discussion Does adding drill-and-fill insulation to uninsulated exterior walls without re-cladding lead to moisture issues in the wall cavities?
"I agree completely with Sean Further, it can depend on what type of sheathing the house has. In the mid-Atlantic we see mostly: Balloon framing, no sheathing, siding on studs - insulation against the back of the siding Balloon framing, 1X8 sheathing…"
Oct 4, 2013
Ed Minch replied to Luis Hernandez's discussion Searching for suggestions
"It appears that the reason the shop is not heating now is that the supply is not big enough.  Add to that the second floor (attic?) system has to push warm air down 2 stories, and that was a bad idea.  So yes, close that off. The basement…"
Oct 4, 2013

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ESG
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BPI BA+EP
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At 3:25pm on August 15, 2013, Diane Chojnowski said…

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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hi David, Thanks for pointing out Martin Holiday's article. I do not wish to engage in the…"
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David Eakin replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
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Curt Kinder commented on Christopher Morin's blog post 5 Things New Energy Efficiency HVAC Contractors Need to Know
"You left out air distribution...Without at least a passing glance at how much air moves through the…"
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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hi David & Bud, $400/sqf > $300 sqf. The latter is the minimum cost of new construction in…"
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