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: 157

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.  Home Energy Pros is sponsored by the Better Buildings Residential Network.

Latest Activity

John Kaye posted a blog post

FREE Home Efficiency & Safety Assessments in the Los Angeles County area.

Since last June I have been qualifying homeowners in the Los Angeles County for the Home Upgrade…See More
3 hours ago
Eric Kjelshus replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"Those 240 Volt aquastats shut off and then on kinda quick back on.  The older the tank the…"
8 hours ago
Profile IconMike Norvell Sr and Jen Loomis joined Home Energy Pros
13 hours ago
Rod Fox replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"Well I'd love to tell you folks I found an answer, but I did not... I went to my…"
17 hours ago
Rod Fox replied to Kevin Eigel's discussion What is the best energy auditing software?
"I've been trying to answer this question for many years and have not yet found an answer.…"
17 hours ago
Jerry Lawrence posted events
17 hours ago
Jan Green commented on Theresa L Gilbride's blog post Find out who's building some of the best-performing homes in the country today with DOE’s Tour of Zero
"Thank you for sharing! "
19 hours ago
Jan Green commented on Theresa L Gilbride's blog post Find out who's building some of the best-performing homes in the country today with DOE’s Tour of Zero
"We have one builder in Arizona on the DOE list.  Good information for a blog!"
19 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service