Chris Stratton
  • Temple City, CA
  • United States
Share on Facebook Share

Chris Stratton's Groups

Chris Stratton's Discussions

Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?

Started this discussion. Last reply by Brian Robinson Aug 26, 2019. 10 Replies

I am about to install a 50-gallon Rheem heat pump water heater in our garage at our house near Pasadena, CA. (after this installation, our home will be all-electric. yay!)I watched Bruce Manclark's…Continue

Technical question about mini split heat pump line set maximum length

Started this discussion. Last reply by Chris Stratton Feb 21, 2018. 3 Replies

Hello!I'm installing a two-zone Mitsubishi mini split (in Pasadena, CA area, 1400 sf, single family detached, one-story home, if context is relevant). This is my first install, and I am trying to…Continue

 

Chris Stratton's Page

Latest Activity

Chris Stratton liked Jim Gunshinan's blog post What's In a Name?
Nov 25, 2019
Dennis Heidner replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"If it is a gas heater - it must be raised  X inches (typically something like 12") above the concrete floor such that gasoline fumes from a car are not immediately pulled into the combustion area and ignited."
Aug 27, 2019
Brian Robinson replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Probably would be fine as you propose (plywood layer over any foam) but I would suggest you check with your local code office to make sure you use foam / assembly that meets life-safety (fire) code.  Not all foams meet this essential safety…"
Aug 26, 2019
Brad Cook replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Not all insulation is the same. For example, Dow's Super Tuf-R polyiso has a compression strength of  25 psi (3,600 lbs per sq.ft.) and a permeance of <0.03 perm, but IKO's Enerair has a compression strength of 20 psi (2,880 lbs…"
Aug 23, 2019
R Higgins replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Thanks for explaining why EPS works better for this"
Aug 20, 2019
Dennis Heidner replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"I've used the same approach when replacing furnaces and HVAC equipment.  Seems crazy to set duct work onto concrete floors, or set an updraft furnace on a concrete floor with the return vent ducting set on the concrete floor feeding into…"
Aug 19, 2019
Chris Stratton replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Thank you, Dennis. I can benefit from your experience. I was considering the plywood to evenly distribute, glad to hear experienced others have had the same impulse. "
Aug 19, 2019
Chris Stratton replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Thank you, Mick. Very helpful. Definitely leaning towards EPS or XPS at this point."
Aug 19, 2019
Chris Stratton replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Thank you, Sean."
Aug 19, 2019
Dennis Heidner replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Personally I would NOT use polyiso in this case.  I've seen it age ungracefully in garages and you have weight ontop of it.  I'd stick with something like an Dow XPS Formula 250 - which I believe has a 250 #/square foot. …"
Aug 19, 2019
Mick Lane replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Technically EPS is "structural". PolyIsoCyanurate is more compressible. It also doesn't do well with shear, tension, hence the foil face. There is also a famous story about the failure of the Green Roof on the Ford Factory that…"
Aug 19, 2019
Sean Lintow Sr replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"1st for anyone wondering - do not do this for gas Sure if you put a drip pan underneath the water heater - so concrete, foam, drip pan, water heater Are you sure you can lose that inch or two of height though - most of those units are freaking tall…"
Aug 19, 2019
Chris Stratton posted a discussion

Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?

I am about to install a 50-gallon Rheem heat pump water heater in our garage at our house near Pasadena, CA. (after this installation, our home will be all-electric. yay!)I watched Bruce Manclark's and Wade Cohn's excellent how-to installation video and noticed the…See More
Aug 18, 2019
Chris Stratton replied to Brennan Less's discussion Summer mid-day Condensation in newly insulated unvented, cathedral ceiling using foil-faced polyiso
"Sorry this is happening, Brennan. Sounds like you're set on an unvented assembly (i.e., no air gap, soffit and ridge vents)? If it's the issue Ed is describing, maybe 1" polyiso continuous across the rafters could keep them from…"
Jul 26, 2019

Profile Information

Company
JCS Design Build
Role in Home Performance Marketplace
Architect / designer, Building energy modeler, Contractor: general (new/remodel), Energy auditor / assessor / analyst, Researcher (Lab. academia. etc.)
Professional Certification
BPI, LEED

Comment Wall (1 comment)

You need to be a member of Home Energy Pros Forum to add comments!

Join Home Energy Pros Forum

At 8:57am on January 4, 2018, Diane Chojnowski said…

Hi Chris,

Welcome to Home Energy Pros Forum. 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.

Thanks!
Diane, HEP Forum Moderator

 
 
 

Forum

Insulating Chilled/Cold Water Lines

Started by Sean Wiens in HVAC. Last reply by Sean Wiens yesterday. 10 Replies

Floor I joists and properly installed insulation

Started by Robin Henry in General Forum. Last reply by Brian Robinson on Thursday. 29 Replies

What's the Most Profitable HVAC Job for Your Company?

Started by Wayne Melancon in HVAC. Last reply by bebelyn accessdoors on Thursday. 5 Replies

Looking for a Rater in Sacramento Area

Started by Brian A McFadden in BPI. Last reply by Building Performance Institute Jan 14. 1 Reply

Hydronic System Critique

Started by Sean Wiens in HVAC. Last reply by Sean Wiens Jan 14. 8 Replies

Condensation Quick Fix

Started by Dan Antonioli in General Forum. Last reply by Sean Wiens Jan 13. 12 Replies

How many BTU required to heat air

Started by Sean Wiens in HVAC. Last reply by Sean Wiens Jan 9. 28 Replies

Denver Home Energy Score Pilot Evaluation Report

Started by Julie Saporito in General Forum. Last reply by Jacob Corvidae Jan 9. 8 Replies

Green Button Connect

Started by Rob Buchanan in General Forum. Last reply by Steve Schmidt Jan 6. 3 Replies

Latest Activity

Building Performance Journal posted a blog post

Dust-Control Strategies for Energy Upgrades

In the Winter 2019 issue (our last under the Home Energy name), author Cory Chovanec wrote an…See More
4 hours ago
Sydney G. Roberts liked Macie Melendez's blog post Re-introducing Myself as the Building Performance Journal’s Managing Editor
4 hours ago
Macie Melendez posted a blog post

Re-introducing Myself as the Building Performance Journal’s Managing Editor

I worked on the editorial staff of Home Energy magazine for nearly 7 years before I made the…See More
5 hours ago
Diane Chojnowski added a discussion to the group News & Announcements
13 hours ago
Luis Hernandez replied to Al Tibbs's discussion Energy Audit Book & Equipment in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Just resend it again just now. Please check your spam folder"
14 hours ago
Jose Macho commented on Chris Laumer-Giddens's blog post Near Perfect Air Tightness Measured in Contemporary Home
"My thinking is zip strip sheathing & tape would have been more cost effective which I have seen…"
yesterday
Al Tibbs replied to Al Tibbs's discussion Energy Audit Book & Equipment in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Never received your email? Send to altibbs@twc.com "
yesterday
Profile IconJay cooper and Zachary Ames joined Home Energy Pros Forum
yesterday
Sean Wiens replied to Sean Wiens's discussion Insulating Chilled/Cold Water Lines
"Just a follow up to Mark's post "cold waterlines in this space wont be exposed to outside…"
yesterday
Sean Wiens replied to Sean Wiens's discussion Insulating Chilled/Cold Water Lines
":-) - Guess I should not read so literal! That makes more sense."
yesterday
Building Performance Institute liked Kirsten Richnavsky's discussion New BPI Standard for Conducting Energy Audits Published as an ANSI Standard!
yesterday
Building Performance Institute liked Kirsten Richnavsky's discussion Breaking the link between unhealthy homes and unhealthy kids
yesterday

© 2020   Created by Building Performance Association   Powered by

Badges  |  Report an Issue  |  Terms of Service