John Nicholas
  • Male
  • Derby, KS
  • United States
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Latest Activity

Eric Kjelshus replied to John Nicholas's discussion ZERH to Begin Construction in the group News & Announcements
"IN Kansas City there is maybe 260 super sealed - Solar - net "0" I have worked on in, seen in 20 yr.   This summer I saw proto type R-20  U of .05 openable type window.   I put a ERV system in 4000' sf home that's…"
Oct 30
David Berg replied to John Nicholas's discussion ZERH to Begin Construction in the group News & Announcements
"I worked on a ZERH home in 2012 and 2013, and it was a new 2x6 framed structure on an existing foundation.  The home was built in Cape May NJ.   The insulation levels were R21 Fiberglass in the wall cavities with a 1/2 inch foam…"
Oct 30
John Nicholas added a discussion to the group News & Announcements

ZERH to Begin Construction

The final adjustments are being made to the plans for the first ZERH home in South Central Kansas, and probably the first ZERH in Kansas.  If anyone is aware of a ZERH in the metro KC area of Kansas, I would appreciate a comment.This home will be built in Derby, KS. a Wichita suburb. The builder is Tru-Building and I will be doing the verification.  It is a 3,700 sf 5 bedroom home.  It is being built as a spec home.Since this area has no adopted Energy Code, the features of this home are heavy…See More
Oct 22
John Nicholas joined Diane Chojnowski's group

News & Announcements

Share your news and announcements with the community in this group.See More
Oct 22
John Nicholas replied to Stephen Wierzbicki's discussion Mold on a ceiling diffuser
"Stephen,    The mold is in one place.  That means moisture is in that place.  Until you have discovered why the moisture is present where the mold is, you are not any closer to a solution. Yes,  You need to fix the entrance…"
Aug 20
John Nicholas replied to Blake Shurtz's discussion Ventilating Attics- Rafter Vents
"You should go high and low on the roof as Glen suggested.  That would be simple.  You can do turtle type vents low and high.  You can do eyebrows low.  Or you can install a simple horizontal low vent.  From the inside of the…"
Aug 7
John Nicholas replied to Sean Lintow Sr's discussion Duct Testing - is a change in order? in the group Best Practices (Residential)
"In day to day operation, the blower is the source of pressure in the supply system and relatively depressurized return.  The Static is slightly higher near the source of pressure then at the far end. Hooking the test fan to the blower…"
Aug 5
John Nicholas replied to Sean Lintow Sr's discussion Duct Testing - is a change in order? in the group Best Practices (Residential)
"Yes,  I was connected to the AH cabinet.  I find it easier in this area, given the common mechanical set ups.  Where I've tried going into a return, I usually have gravity to fight. <GRIN> I did a guarded Blower Door Test…"
Aug 3
John Nicholas replied to Kirsten Richnavsky's discussion Crawl spaces and attics: OSHA to implement new rule on confined spaces
"I listened to a webinar sponsored by NAHB with one of the OSHA staff members that was on the team that wrote this.  90% of the rule applies to enclosed spaces that someone can climb *down* into.  They also have a hazardous atmosphere, such…"
Jul 9
John Nicholas replied to Elizabeth Guinn's discussion ERV in need of backflow preventer.
"First,  What is the 24/7 CFM requirement for your house?   Second,  What is the CFM rating for the unit? The most efficient ERVs run closest to 60 minutes out of each hour.  Buying a unit that moves 70 CFM is less capital outlay…"
May 29
John Nicholas commented on Jamie Press's blog post How to Choose the Right Solar Panels
"How much power do you need?  The looking up appliances and electronics usage, assigning time of use and then calculating is tedious. Collect 36 months of Energy Bills.  Get monthly and annual averages. Consult with a skilled energy auditor…"
May 25
John Nicholas commented on Home Energy Magazine's blog post Revisiting Electrification
"Electrification for heating is bad.   Nope! Electric Resistance heating is not efficient. Nope!  The Yellow Energy Guide Label from the FTC says 100% on an Electric Furnace. Gas furnace (mine) is only 97% efficient. In 2012 I choose to use…"
May 5
John Nicholas replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"No,  I don't heat my toilet water, but I don't like being in the shower when someone flushes. So I threw the 1 GPM in there.  When you figure potential, you can throw a lot in there.  The real actual is what will count. I…"
Apr 19
John Nicholas replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"Simple math will tell you.   Figure the GPM requirements for each fixture you think will run at the same time, actually or potentially.  2 Showers 2.5 GPM unless your heads are WaterSense.  1 Toilet 1 GPM.  Tub 2 GPM for 10…"
Apr 19
John Nicholas replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"In addition to the 2 items Sean mentioned, you will also have to consider the exhaust.  My personal tankless install moved 12 feet because of the flue issue.  Each home is different. Depending on the layout of the home, 2 smaller tankless…"
Apr 16
John Nicholas replied to Tony Hicks's discussion Slab-on-grade Insulation
"Take a look at the Energy Star New Homes Website. They have lots of good technical advice for constructing a continuous thermal barrier. You may also wish to check out Energy Edge.  They have an exterior slab insulation product that…"
Apr 16

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The Energy Gug
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HERS Rater - Level II Thermography
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John Nicholas's Blog

GeoSpring HPHWH from GE

Most homes in this area have a gas fired natural draft hot water heater. They come complete with a draft diverter.  The purpose of the draft diverter is to send the exhaust gasses (containing Carbon Monoxide, Sulphur Dioxide etc) into the home if the chimney or flue doesn't allow them to go up. Left is a picture of a properly installed heater with a draft diverter. Note the space between the tank and the flue. That is the design that allow the noxious gasses to back draft into the…


Posted on May 1, 2014 at 6:58am

Energy Auditors Rock! They Depressurize!

You’ve been in the attic, the crawl spaces or basement, climbed up and down any stairs several times. There have been some questions from the home owner and perhaps from the kids in the house. If you are like me, you’ve bumped your head a few times on low hanging fruit. It has been a fun, rewarding and perhaps a little stressful.

The thing I do to relieve this stress, is to depressurize. Yes, let all that built up stress just…


Posted on January 22, 2012 at 6:00am


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Eric Kjelshus commented on Chris Laumer-Giddens's blog post Sparky Doubled the Air Leakage in this Home!
"What if after the building is sealed and tested.   The trades man would have to reseal all…"
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