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Dale Sherman
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Dale Sherman's Discussions
ASHRAE 62.2-2013 released
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Okay, so has anyone had time to scrutinize the just-released ASHRAE 62.2-2013 standard? How different is it from Addendum r?I…Continue
Started this discussion. Last reply by Rick Karg May 8.
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Dale Sherman's discussion was featuredASHRAE 62.2-2013 released
Okay, so has anyone had time to scrutinize the just-released ASHRAE 62.2-2013 standard? How different is it from Addendum r?I see it has finer increments in the Ventilation Air Requirements table 4.1. That's good.Be sure to get the Errata sheet.Qinf = may be no greater than 2/3 * Qtot. I read that as meaning even leaky houses may need mechanical ventilation. Anyone have a -2013 spreadsheet calculator yet?Will the $20…See More
Rick Karg replied to Dale Sherman's discussion ASHRAE 62.2-2013 released"Paul Francisco's alternative method is just fine. He has simplified the math for the procedure. Even with Paul's simplification, a spreadsheet or calculation sheet is a good idea.
Regarding ductwork, remember that the ASHRAE 62.2 Standard…"
Dale Sherman replied to Dale Sherman's discussion ASHRAE 62.2-2013 released"Very convenient web tool, Rick, makes it easy to run the calculations. I'm glad to see the improvements in 62.2-2013, such as more weather stations and a refined Table 4.1.
The ELA calculation is still a thorny calculation,…"
Rick Karg replied to Dale Sherman's discussion ASHRAE 62.2-2013 released"Thank you, David. Watch the RED website; more tools and features are being added frequently. "
David Meiland replied to Dale Sherman's discussion ASHRAE 62.2-2013 released"Excellent calculator, Rick, very much appreciated."
Rick Karg replied to Dale Sherman's discussion ASHRAE 62.2-2013 released"OK, one question/answer at a time:
Yes, I have scrutinized the 2013 and presented a session at ACI Denver (May 2013) with Paul Francisco that compared 62.2-2010 with 62.2-2013.
Qinf may not be greater than 2/3 Qtot for NEW homes only. This is not a…"
Dale Sherman posted a discussionASHRAE 62.2-2013 released
Okay, so has anyone had time to scrutinize the just-released ASHRAE 62.2-2013 standard? How different is it from Addendum r?I see it has finer increments in the Ventilation Air Requirements table 4.1. That's good.Be sure to get the Errata sheet.Qinf = may be no greater than 2/3 * Qtot. I read that as meaning even leaky houses may need mechanical ventilation. Anyone have a -2013 spreadsheet calculator yet?Will the $20…See More
Dale Sherman replied to Pat Dundon's discussion Basements and BAS"Generally, the older the house, the nastier the basement. If we do a good job of air-sealing a house, where is the remaining infiltration air coming from? If the path from outside to the living space is via the basement, how much is the air…"
Dale Sherman replied to Mike Kandel's discussion BPI Introduces New Renewal Policy for Certified Home Performance Professionals"A balanced and reasonable strategy from BPI would be to require a triennial review along with CEUs and some form of proof of continued active engagement (work) in the field. A triennial review by an accredited BPI testing center would be…"
Dale Sherman commented on Home Energy Magazine's blog post Home Energy and the Fracking Dividend"Some homeowners in upstate NY are changing their homes to all electric because of their opposition to fracking. They are also switching their electrical supplier to all renewable which often adds 1-2 cents per kWh. These folks are prime…"
Dale Sherman replied to Jack Baikoff's discussion Measuring fresh air intake ducted to a return and no way of measuring from outside."Rick Karg has instructions for using a pitot tube to assess airflow in ducts.
His website Residential Energy Dynamics includes a calculator to determine duct CFM. It's fairly accurate, provided you have plenty of straight duct…"
Dale Sherman replied to George Kopf's discussion ASHRAE 62.2.2010 and the $20 app"Wonderful input here from everyone. Iain, Paul, Rick, I know you've worked long and hard on 62.2, but it does need some tweaking as do all the various programs trying to implement it smoothly.
I'm a fan of ventilation, but I also need to…"
Dale Sherman replied to Bruce Navin's discussion LED's interfering with Garage Door Openers"LEDs are pulsed on/off to get the maximum light from them while avoiding overheating. To run them on DC, they would need to be dimmer to keep from overheating. One can see this on/off cycle when using a laser pointer, too. Just…"
Dale Sherman replied to tedkidd's discussion Rick Gerardi's case for a "Performance Registry""Rick has laid out a great framework for moving the energy efficiency (EE) market forward and helping it mature to where it needs to be, on par with the public awareness of MPG. One approach to get homes registered more quickly would be to…"
Dale Sherman replied to Glen Gallo's discussion “I don’t get it why would we want to make the house so tight that you would need ventilation?”"It's a little easier to sell in upstate NY. A house needs ventilation for the people and pets in it, but the rate of ventilation varies greatly with temperature and wind. "A house has to breathe," can be countered…"
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- NY State Weatherization Directors' Association
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- EPA Supervisor, Renovator, BPI BA
- Professional Interests
- Education strategies, pressure diagnostics, baseload diagnostics, Passivhaus, sustainable design.
- Website URL
- http://www.nyswda.org
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Comment Wall (1 comment)
- At 9:07am on November 4, 2010,
Carol A. Markell said… - Welcome Dale
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Look into Tenmat - those are designed…"
Bachi Brunato posted a discussionBoxing and Insulating Around Non-ICAT Cans
I have a client with 16) 4" halogen recessed light fixtures in the attic.I'd like to cover the cans…See More
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…"
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