John Nicholas's Blog (3)

Indoor Air - How do you measure if it is Healthy?

Indoor Air - How do you measure if it is Healthy? New on my Blog! This post was made to respond to my friend Nate Adams question of 'Why?' when I tweeted that I was disappointed at…

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Added by John Nicholas on June 20, 2016 at 8:09am — 5 Comments

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…

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Added by John Nicholas on May 1, 2014 at 6:58am — No Comments

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…

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Added by John Nicholas on January 22, 2012 at 6:00am — No Comments

Featured Forum Discussions

Too many BTU's. Too much horsepower?

Started by Steve in General Forum. Last reply by Eric Kjelshus 20 hours ago. 4 Replies

Stack/wind pressure and flow networks.

Started by Daniel James Grundy in Training. Last reply by Daniel James Grundy on Thursday. 5 Replies

BDT with vermiculite in hollow CMU walls?

Started by Brad Cook in General Forum. Last reply by John Nicholas on Thursday. 2 Replies

Strange IR Image

Started by Larry Nissman in General Forum. Last reply by Brad Cook Mar 9. 7 Replies

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Eric Kjelshus replied to Steve's discussion Too many BTU's. Too much horsepower?
"Its more about run time with high RH removing, than to large over sized AC unit, in houses.  …"
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Crowdsourcing for Innovation

Share Your Ideas!Novel Building Envelope Design for Increased Thermal PerformanceIn 2014, more than…See More
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Walter Ahlgrim replied to Steve's discussion Too many BTU's. Too much horsepower?
"The 5 ton system you have is not 500 hp racecar engines they are 500 hp truck engines. The duct…"
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Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"So I wanted to start with a basic who can help then go into more detail later. But yes find…"
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Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"My tutor got back to me and while areas don't quite feel right a little to much assumptions…"
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Brennan Less replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
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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…See More
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