"Chris
For my customers, the cost of getting a tight house is right up there with actually HAVING a tight house. We deliver houses on a production basis below 1.5 ACH50 all the time (1800-2600 ft2) without any expensive materials. In my…"
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Ed Minch
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Ed Minch's Discussions
Duct testing in a conditioned crawlspace
13 Replies
Concerning duct testing in crawlspaces (this is for new houses for Energy Star, but will be the same for existing houses):I have a house on a conditioned crawl with ducts in that crawl. There is an…Continue
Tags: testing, duct, crawl, conditioned
Started this discussion. Last reply by Ed Minch Nov 25, 2011.
Ed Minch's Page
Latest Activity
Ed Minch commented on Chris Laumer-Giddens's blog post 0.72 ach50 Before Drywall - This Home is already 90% Tighter than Energy CodeEd Minch replied to Paul Raymer's discussion Looking for a cure for a warping hardwood floor not caused by a leak"One of the local large (3-400 a year) national builders specializes in houses over about 3500 ft2 and on up to about 6500 ft. They found that if they installed a humidifier on each system as standard (either 2 or 3 systems) their floor…"
Ed Minch replied to Pat Dundon's discussion Basements and BAS"What is the charge? What do you think it costs you to drop it off, pick it up, and deal with it? What percentage of houses would consider reasonable to measure? Have you then ventilated more and measured? Has anybody?
Ed Minch"
Ed Minch replied to Pat Dundon's discussion Basements and BAS"Ted
What measure did you use for IAQ? What pollutants did you look for? Do you do it in every house? I recently had to refute a guy who measured "high cellulose" in the carpet of the bedroom with the pull down stair to the…"
Ed Minch replied to Pat Dundon's discussion Basements and BAS"Look at the example on page 4 of the BPI BA standard - it says nothing about occupied, conditioned, etc. BPI says to use the basement as part of the calculation. There will certainly be times, as has been noted, where extenuating circumstances…"
Ed Minch replied to Pat Dundon's discussion Basements and BAS"The only basement (in the mid-Atlantic) I would consider unconditioned is a basement in a baseboard electric heated house where the water heater was upstairs, say in the kitchen. Only then would I seal and insulate the basement or crawlspace)…"
Ed Minch replied to Guy DuBois's discussion Where shouldn't thermostats be? in the group Hall of Shame"Guy
Just cruising through the archives and didn't see the 2011 - if a house doctor poses an opinion and no one is there to here, does he really have an opinion?"
Ed Minch replied to Guy DuBois's discussion Where shouldn't thermostats be? in the group Hall of Shame"There are 2 potential reasons why theis return area could be cold - air leakage and low R-value.
Air leakage - note the center of the grill is not cold, just the edges. This tells me that cold air is coming into the room from around the…"
Ed Minch joined Diane Chojnowski's group
Hall of Shame
In this group, members share an array of images from the field, showing the kinds of issues encountered by home performance professionals in real homes. Each tells a story of how hidden (but fixable) problems in homes can cause high energy bills.
Ed Minch replied to Austin Brown's discussion Heat Pump Problem - Aux mode"Austin
The heat pump / back up relationship is an easy one. If the house won't heat with the heat pump, the back up comes on. On a cold day (in your 5,000 degree day climate), the heat pump can't keep up and the temperature…"
Ed Minch replied to Nick Helmholdt's discussion Frozen Pipes on Interior Wall"The location of a water pipe break can be quite a distance from the point where it freezes. Was it possible to find the location of the freeze? This would be instructive because it would give you the point where the cold air hit the…"
Ed Minch commented on Jim Peck's blog post Natural Draft Orphaned Hot Water Heater"Sean
Thanks, but I understand the theory - we do over 800 retrofits a year under several states' programs and work under different intensities of requirements and QA. My question remains:
How do we know we have an actual problem?"
Ed Minch commented on Jim Peck's blog post Natural Draft Orphaned Hot Water Heater"Has anyone done any research on what happens in the real world? Are people getting CO sickness at certain CAZ pressures? We are not picking up any bodies and I am wondering of all of this is necessary. It seems the only CO…"
Ed Minch replied to George Kopf's discussion ASHRAE 62.2.2010 and the $20 app"We work in both new and existing houses MD where the 2012 IECC is in effect, and if the local jurisdiction has adopted the 2012 IRC, then 62.2-2010 is in effect. Either use the simple formula or the table and put in the right fans regardless…"
Ed Minch replied to Daniel W's discussion Polyiso, roxul & reflective insulation combination"Why not just fill up the cavity with 19 layers of the Prodex for a total of R-300+??
That would put the condensible surface - - -??
And with that many shiny surfaces the heat would not be able to escape.
Ed Minch"
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Comment Wall (1 comment)
- At 7:12am on December 24, 2010,
Diane Chojnowski said… Hi Ed,
Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the
place for you!
Don't forget to upload your profile photo. And, add your location on our Member
Map!
Thanks!
Diane, HEP Moderator
Home Energy Pros
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Latest Activity
Dennis Heidner replied to Patrick Michaelyan's discussion Hot Upper Stories"Could you have them make a simple two line graph of the outside temperature, noting sun/clouds,…"
Bob Blanchette replied to Jose Macho's discussion Why Are Energy-Saving Home Inprovements Down??"You make some valid points, especially with the base rate charges. Increasing the base rate instead…"
Bob Blanchette replied to Jose Macho's discussion Why Are Energy-Saving Home Inprovements Down??"Amen, make energy show it's true cost instead of subsidizing it.
We have some of the lowest…"
Dennis Heidner replied to Jose Macho's discussion Why Are Energy-Saving Home Inprovements Down??"The press report really doesn't give enough information to clearly answer why they are…"
Edward Foskey commented on Edward Foskey's blog post Preparing to Update the Heat Pump"Gustavo,
Thanks for the input. I agree with you in that I will be waiting till my system's…"
Gustavo Melo commented on Edward Foskey's blog post Preparing to Update the Heat Pump"Any system that is out of warranty is really a coin toss as to whether it is financially better to…"
Dennis Heidner replied to J.C. Martel's discussion Disasters & sustainable energy"Such as Greensburg…"
Tom Delconte commented on Edward Foskey's blog post Preparing to Update the Heat Pump"Thanks, Ed, I get it now. I would just put in what my hvac guy tells me to put in: a $17,000…"
Jim Gunshinan commented on Jim Gunshinan's blog post The Universe Is Made of Stories"Hi Tom,
I'm sorry you didn't think my blog post was helpful or appropriate. I'll…"
Tom Delconte commented on Jim Gunshinan's blog post The Universe Is Made of Stories"Whatever happened to separation of church, state, and scientific home building science? What would…"
Craig Savage's video was featuredWhat is Building America
The U.S. Department of Energy's (DOE) Building America program is a source of innovation in residential building energy performance, durability, quality, aff...
Jim Gunshinan's blog post was featuredThe Universe Is Made of Stories
The late poet and political activist Muriel Rukeyser famously said, The Universe is made of…See More
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