Good morning everyone, I was hoping you could help settle a debate.

When choosing to insulate the cold water intake pipe on a HWH, is it necessary or recommended to insulate the pipe beyond the first elbow?

While I recognize there are reasons to insulate the cold water pipes (condensate, etc.) our area of concern is for thermosiphoning only.

Thanks in advance, everyone.

Views: 152

Reply to This

Replies to This Discussion

Take a clamp on temp  probe  like fluke or cooper  - then heat the tank and tell us what happen?    The only way to  stop DHW thermosiphoning  is to put in heat traps.   I use a IR  each building  and its fun to see the  heat leak.   Most is with in 5 feet but I see 20 feet on large flat runs,  the hoter water the more thermosiphoning happens.

I like to take it to where it enters the wall if near the water heater or 6 inches past the first downward elbow

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Profile IconWes Anderson, Jean-Paul and Bryan joined Home Energy Pros
yesterday
Dennis Heidner commented on Dale Stephens's blog post LED Lighting 24-month update 18,240 hours & counting
"Dale, good write up. For the landscaping bulbs,  if they had been T3 12V wedge bulbs,  I…"
Friday
Brett Little commented on Tom White's video
Thumbnail

The Future of Housing - And How Airtightness Can Help

"It's very true! So many people and contractors have tons of insulated attics but no air seal…"
Thursday
Chris Leach replied to Richard Beyer's discussion "The Dangers of Using Spray Foam Insulation"
"The problems will surface soon enough . Why don't we take a second look at this over rated…"
Thursday
Don Fitchett commented on Tom White's video
Thursday
tedkidd replied to Bob Blanchette's discussion How does Cycles Per Hour affect real world AFUE?
"Want to spot a simpleton? It's a guy who thinks EE and comfort are disconnected.  Want…"
Thursday
tedkidd commented on Tom White's blog post Clean Energy Works Oregon: Total Home Performance
"Nice post Tom! I really like how he puts that. Leveraging interests so they can optimize…"
Thursday
Kent Mitchell commented on Tom White's blog post Clean Energy Works Oregon: Total Home Performance
"As a contractor in the region - we frequently wonder how/why you can be a non-profit?  Oregon…"
Thursday

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service