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

Malcolm McKelvie replied to Alan Gindt's discussion Minneapolis Blower Door System for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hi Alan, is it still for sale?"
33 minutes ago
Malcolm McKelvie joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
33 minutes ago
Hannah Finch posted a blog post

Want to Lead a Breakout Session at RaterFest! 2015?

We are adding something new to RaterFest! this year... attendee led breakout sessions on Saturday…See More
11 hours ago
Rod Fox replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"We're in climate zone 5 (near Santa Fe, NM) where it's dry as a bone. Gonna head to that…"
12 hours ago
Bud Poll replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"The two 4500 watt elements will never operate simultaneously.  It will be one or the…"
12 hours ago
Rod Fox replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"Correction to this last posting... This model only operates one element at a time, not two in…"
12 hours ago
Rod Fox replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"Agreed. Incidentally, I just called tech support at Bradford White (and actually spoke to a…"
12 hours ago
Hans Joachim Preiss replied to Rod Fox's discussion Does calcification affect electric water heater aquastat temperature sensor performance?
"Rod, Because the tank is not overheating, the behavior is either normal for this tank or there is a…"
13 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service