Don Hynek
  • Male
  • Madison, WI
  • United States
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Don Hynek's Groups

Don Hynek's Discussions

Anybody know what this is??
3 Replies

During an…Continue

Started this discussion. Last reply by Bradford E. White Dec 7, 2012.

How much should I demo -- deep retrofit
8 Replies

the more I look at the potential of remodeling our 100-year-old house, the more I think about super-insulating the walls. I'm looking for experts and advice. (I know I can find lots of advice here,…Continue

Started this discussion. Last reply by Robert Riversong Sep 27, 2012.

Foam over Batts -- Dry Climate??
7 Replies

So, I'm out of my weight on this one, and could use some advice... Good friend of mine with a lot of construction experience is now in Reno, NV, and is remodeling a house there. His new CPDS for…Continue

Started this discussion. Last reply by Patrick Michaelyan Jun 21, 2012.


Don Hynek's Page

Latest Activity

Don Hynek replied to Luis Hernandez's discussion Non-continuous exterior insulation
"This is a matter of far more than R-values. Average exterior temp, heating load vs. cooling load, interior and exterior RH (moisture drive) ALL enter into the picture. At 6,000 HDD, where Luis is, yours would be a VERY high-risk wall assembly - lots…"
Mar 1
Don Hynek replied to Luis Hernandez's discussion Non continuous exterior insulation
"I agree with Sean, as far as he goes... This building wants ALL the exterior wall that sees full exterior temperature to be fully insulated. This looks to me as though the gable walls are fully conditioned all the way to the peak on the inside, and…"
Dec 29, 2014
Don Hynek added a discussion to the group Multifamily Buildings

Testing "Magic Pak" units??

We are planning an energy audit in southern Wisconsin on a mid-rise building where every apartment has a self-contained Anderson "Magic Pak" HVAC unit. These are a combo NG furnace/package AC ducted forced air system, set into a three foot by four foot grille in an exterior wall for condenser cooling and furnace exhaust.Since these buildings are in a heating-dominant climate, getting good SSE readings on the existing units is important to me. The furnace exhaust ports out a short tube through…See More
Dec 29, 2014
Don Hynek replied to B Eric Bell's discussion Lighting detection in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"If the question is "incandescent vs. compact fluorescent" OR "cfl vs. LED" -- then a diffraction grating will help. Go to a toy store and find the little cardboard glasses with plastic lenses that make every light bulb look like…"
Aug 14, 2014
Don Hynek joined allen p tanner's group

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
Aug 14, 2014
Don Hynek replied to Ed Minch's discussion Cold climate wall
"My quick and dirty guess is that you have the proportions backward. For 30 years, cold-climate builders used a little bit of exterior insulation, to reduce thermal bridging. But if you went overboard, the wall couldn't dry to outdoors, and rot…"
Jul 11, 2014
Don Hynek replied to Brandon Walton's discussion When is it too windy to use blower door?
"Multipoint testing will help some, mostly because (after you get experience with doing dozens of them) you can throw out data that doesn't fit the curve. It is probably not worth all the grief if you are testing a SF house, and a number…"
May 8, 2014
Don Hynek replied to Corbett Lunsford's discussion CAZ Depressurization: NOT a Big Deal?
"Frankly, I believe it's unconscionable that atmospheric appliances are still allowed by Code. When we moved into our current (100-year-old) house the VERY first change I made was to replace the atmospheric water heater with a power-vent…"
Apr 7, 2014
Don Hynek replied to Roy Sakamoto's discussion Whole house air leakage
"This doesn't have to be that complicated…. If your goal is to save energy, the answer is always "get it as tight as possible" If your goal is to save energy and assure indoor air quality, the answer is "build tight and…"
Mar 24, 2014
Don Hynek added a discussion to the group Multifamily Buildings

BPI's Multifamily Energy Auditing Standard Released for Public Comment

 For Immediate ReleaseBPI's Multifamily Energy Auditing Standard Released for Public Comment Now open for public comment through December 2, 2013Malta, NY, October 18, 2013 - The Building Performance Institute, Inc. (BPI) is pleased to announce that BPI-1105-S-201x: Standard Practice for Multifamily Energy Auditing is now available for public comment for a period of 45 days. BPI-1105-S-201x: Standard Practice for Multifamily Energy Auditing defines the minimum criteria for conducting a…See More
Nov 18, 2013
Don Hynek replied to Jim Gunshinan's discussion Should Homeowners with PV Get Paid Retail or Wholesale Prices for their Excess Electricity?
"If you really want to get into arcana, try to figure out and rationalize utility rates! It's a complicated process even if you TRY to keep it simple. (How much SHOULD you pay today for the plant that was built 20 years ago, financed with…"
Oct 25, 2013
Don Hynek replied to John Harper's discussion Insulating in-wall/in-ceiling speakers
"This is three different questions, air sealing, insulating, and acoustics/speaker performance. Air sealing -- any air-impermeable sheet material, caulked or foamed into place, will provide a good air barrier. Drywall is commonly used, especially…"
Aug 6, 2013
Don Hynek commented on Jim Peck's blog post Natural Draft Orphaned Hot Water Heater
"Often, fixing the venting can do a world of good, at very low cost. Next step, a chimney liner will get a marginal unit to deliver a good solid draft and reliable venting. It's amazing how much better the draft is when the air volume of the…"
Feb 7, 2013
Don Hynek replied to Jack Baikoff's discussion Measuring fresh air intake ducted to a return and no way of measuring from outside.
"Jim, that's a good idea!! Don't even bother measuring -- with a 12 inch duct, it's a pretty safe guess that the intake flow is too high! The only question is by how much. I am not usually a "why measure?" sort of…"
Jan 17, 2013
Don Hynek replied to Jack Baikoff's discussion Measuring fresh air intake ducted to a return and no way of measuring from outside.
"The simplest way is probably with a pitot tube. I know that's not exactly a "common" home performance tool. But they are cheap ($50 -$60 from Dwyer) and supported by TEC digital gauges."
Jan 10, 2013
Don Hynek replied to George Whiting's discussion Retrofit insulation on the roof over cathedral ceiling
"A couple of replies (Robert and Sean) are on it -- fill the cavities with cellulose, add enough foam above the deck, then re-roof without venting. But, you wanted some theory to back this up... Note that cellulose in unvented ceilings is…"
Jan 10, 2013

Profile Information

State of Wisconsin
Professional Certification
MS 2009
Professional Interests
Multifamily energy efficiency, Blower door testing of large buildings, residential efficiency retrofits, statistical analysis, evaluation

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