EcoRenovator  

Go Back   EcoRenovator > Improvements > Conservation
Advanced Search
 


Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 12-13-10, 10:28 AM   #1
Daox
Administrator
 
Daox's Avatar
 
Join Date: Aug 2008
Location: Germantown, WI
Posts: 5,416
Thanks: 1,068
Thanked 357 Times in 292 Posts
Default Super insulate your hot water tank

A great article on how to super insulate your hot water tank. He also explains how to find the ROI for the insulation. Very well put together IMO.

IWillTry.org Super insulate your hot water tank


__________________
Current project -
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
&
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Daox is offline   Reply With Quote
Old 12-13-10, 05:20 PM   #2
RobertSmalls
Journeyman EcoRenovator
 
RobertSmalls's Avatar
 
Join Date: May 2009
Location: Buffalo, NY
Posts: 344
Thanks: 3
Thanked 17 Times in 15 Posts
Default

Ah, yes, from Iwilltry, the author of a coastdown testing instructable.

You know you're an ecorenovator if anything worth insulating is worth superinsulating.
RobertSmalls is offline   Reply With Quote
Old 12-13-10, 07:43 PM   #3
Daox
Administrator
 
Daox's Avatar
 
Join Date: Aug 2008
Location: Germantown, WI
Posts: 5,416
Thanks: 1,068
Thanked 357 Times in 292 Posts
Default

Quote:
Originally Posted by RobertSmalls View Post
You know you're an ecorenovator if anything worth insulating is worth superinsulating.
Woohoo, you betcha!
__________________
Current project -
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
&
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Daox is offline   Reply With Quote
Old 12-14-10, 12:41 AM   #4
Piwoslaw
Super Moderator
 
Piwoslaw's Avatar
 
Join Date: May 2009
Location: Warsaw, Poland
Posts: 918
Thanks: 167
Thanked 91 Times in 76 Posts
Default

Quote:
Originally Posted by RobertSmalls View Post
You know you're an ecorenovator if anything worth insulating is worth superinsulating.
That's a good one You should put it in you signature so doesn't get forgotten.
__________________
Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.
Piwoslaw is offline   Reply With Quote
Old 12-18-10, 01:38 PM   #5
RobertSmalls
Journeyman EcoRenovator
 
RobertSmalls's Avatar
 
Join Date: May 2009
Location: Buffalo, NY
Posts: 344
Thanks: 3
Thanked 17 Times in 15 Posts
Default

It's all you, Piwoslaw.
RobertSmalls is offline   Reply With Quote
Old 12-19-10, 11:37 AM   #6
PastTense
Lurking Renovator
 
Join Date: Dec 2010
Location: Iowa
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Default

From the article:
"Where I live electricity costs about $0.07 per kWh so a typical electric water heater with no additional insulation might cost about $150 per year to operate. Depending on use, perhaps $50 of this is actually used to raise the temperature of the incoming cold water. The remaining $100 is wasted in the form of heat dissipation to the surroundings. "

Do you agree with these kinds of numbers as to how much of the energy is dissapated as waste heat? I was under the impression that the the substantial majority of the heat is used to heat the water. Anyone have better numbers?

Also note part of the waste heat will still be wasted--top and bottom of water heater.
PastTense is offline   Reply With Quote
Old 12-19-10, 12:17 PM   #7
Daox
Administrator
 
Daox's Avatar
 
Join Date: Aug 2008
Location: Germantown, WI
Posts: 5,416
Thanks: 1,068
Thanked 357 Times in 292 Posts
Default

The writer of the article did insulate the top. I don't think he mentioned insulating the bottom at all, but its a good idea.

__________________
Current project -
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
&
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Daox is offline   Reply With Quote
Old 12-19-10, 03:26 PM   #8
RobertSmalls
Journeyman EcoRenovator
 
RobertSmalls's Avatar
 
Join Date: May 2009
Location: Buffalo, NY
Posts: 344
Thanks: 3
Thanked 17 Times in 15 Posts
Default

Quote:
Originally Posted by PastTense View Post
Do you agree with these kinds of numbers as to how much of the energy is dissapated as waste heat? I was under the impression that the the substantial majority of the heat is used to heat the water. Anyone have better numbers?
I guess that depends on the amount of hot water you use, eh? But it seems plausible to me.

To avoid having to look up the UA of your HWH, try a simple test:

Record the temperature of your hot water. Shut off the heater, wait 24 hours, and take the temperature again. How much heat did you lose? This is equivalent to wasting a certain amount of hot water a day - how much?
RobertSmalls is offline   Reply With Quote
Old 12-19-10, 08:12 PM   #9
Daox
Administrator
 
Daox's Avatar
 
Join Date: Aug 2008
Location: Germantown, WI
Posts: 5,416
Thanks: 1,068
Thanked 357 Times in 292 Posts
Default

That is a great idea. How would you recommend measuring the before and after water temperature?
__________________
Current project -
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
&
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Daox is offline   Reply With Quote
Old 12-19-10, 08:59 PM   #10
RobertSmalls
Journeyman EcoRenovator
 
RobertSmalls's Avatar
 
Join Date: May 2009
Location: Buffalo, NY
Posts: 344
Thanks: 3
Thanked 17 Times in 15 Posts
Default

I'd open the drain penis until it flows hot, fill a styrofoam cup with water (or nested plastic cups for the eco-friendly), and measure the temperature of the water in the cup.

The easy way is just to measure the temperature of the water in your kitchen, but that introduces all kinds of unknowns, like how much heat is lost in the pipes.

Edit: the forum censored out "draincock". Now it gets what it deserves.


Last edited by RobertSmalls; 12-19-10 at 08:59 PM.. Reason: It censored out draincock.
RobertSmalls is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 07:17 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design