Derrick Chapman
  • San Jose, CA
  • United States
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Profile Information

Company
CACTUS
Website URL
http://ww.greencactus.org

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Forum Discussions

Tankless Water Heaters... has their time finally come?

Started by Bob Blanchette in General Forum. Last reply by Stanley Layman 1 hour ago. 33 Replies

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by John Hatfield 16 hours ago. 9 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training yesterday. 0 Replies

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco on Monday. 1 Reply

Latest Activity

Marc Tannenbaum's blog post was featured

3 Issues HVAC contractors Should Know About Impacting Customer Comfort and Health

There is an epidemic of people suffering in many of the 100 million homes across the U.S.  Many of…See More
29 minutes ago
Profile IconPaigh Bumgarner, Blake Reid, James Barras and 3 more joined Home Energy Pros Forum
36 minutes ago
Stanley Layman replied to Bob Blanchette's discussion Tankless Water Heaters... has their time finally come?
"A tankless water heater can be a bit pricey. Tankless water heaters can range from $300 to $1100 or…"
1 hour ago
John Hatfield replied to David Butler's discussion How would you insulate this roof?
"David I think the finish edge application is critical but several un-knows exist. Such as how far…"
16 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"@Kevin, that article is behind a pay wall. Here's the original posted on Allison's…"
17 hours ago
Kevin Miller replied to David Butler's discussion How would you insulate this roof?
"Good question.  I don't know the answer.   I'd love to know whether there…"
17 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Hi John, thanks for pointing out my faux pas: I made clear in my original post that rainwater…"
17 hours ago
John Hatfield replied to David Butler's discussion How would you insulate this roof?
"Kevin, Is the "Kool Seal" product certified for potable water collection?"
17 hours ago

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