Water Heater Problem - HVAC - Page 2 - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 11-29-2009, 09:06 AM   #16
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,573
Rewards Points: 4,784
Default

Water Heater Problem


Quote:
Originally Posted by Marty S. View Post
According to the plumbers at the shop, a modern water heater averages 12 years of use before they start leaking around here. The only old ones I ever see are glass lined. Don't think they have made those for many years .

Is it fair to say a sample should only include similar construction to compare life spans?
Similar construction. Similar use. Similar water.
And all of it documented.

Instead of just guesses to make the calcs fit someomes misbeliefs.

Advertisement

beenthere is online now   Reply With Quote
Old 11-29-2009, 10:17 AM   #17
Member
 
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000
Default

Water Heater Problem


Quote:
Originally Posted by Marty S. View Post
Is it fair to say a sample should only include similar construction to compare life spans?
Yeah, if I can get those subcategories. All I have is "NG" or "elec." and it was like pulling teeth just to get those figures.
And the thing is, anyone on this forum who replaces these things for a living is sitting on a whole stack of data [customer repair/sales slips]. Compiling one year's worth as to type of heater, replacement age, reason for replacement, etc., would give much more accurate answers than my few samples.

Most websites relating to this publish the range [x years to y years] of lifetimes, and the average.
I come to find out if you have the individual replacement ages you can answer the question, Given that the unit lasted b years, what is the likelihood it will last another c years?
This kind of Conditional Probability info is useful in repair/replace decisions, which are pretty popular on forums. And, we're only looking for tie-breakers, not for levels of precision such as 11 yrs, 3 months, 2 weeks and 1 day.

It also turns out that addressing questions and non Ad-Hominem statements by skeptics causes me to sharpen my own reasoning skills and basic knowledge about data collection. Thanks, guys

Last edited by Yoyizit; 11-29-2009 at 10:25 AM.
Yoyizit is offline   Reply With Quote
Old 11-29-2009, 10:57 AM   #18
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,573
Rewards Points: 4,784
Default

Water Heater Problem


Quote:
Originally Posted by Yoyizit View Post
Yeah, if I can get those subcategories. All I have is "NG" or "elec." and it was like pulling teeth just to get those figures.
And the thing is, anyone on this forum who replaces these things for a living is sitting on a whole stack of data [customer repair/sales slips]. Compiling one year's worth as to type of heater, replacement age, reason for replacement, etc., would give much more accurate answers than my few samples.
Guess you never thought that when we give lifespan info. Its coming from that "data".

And you just decide to redo it. So it comes up different.
beenthere is online now   Reply With Quote
Old 11-29-2009, 11:30 AM   #19
Member
 
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000
Default

Water Heater Problem


Quote:
Originally Posted by beenthere View Post
Guess you never thought that when we give lifespan info. Its coming from that "data".

And you just decide to redo it. So it comes up different.
So tell me, if a NG WH lasts 3 yrs what is the likelihood that it will last another 3 yrs? And how many samples are you basing this on?
http://www.surveysystem.com/sscalc.htm

You are one tenacious dude.

Last edited by Yoyizit; 11-29-2009 at 11:35 AM.
Yoyizit is offline   Reply With Quote
Old 11-29-2009, 11:53 AM   #20
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,573
Rewards Points: 4,784
Default

Water Heater Problem


Quote:
Originally Posted by Yoyizit View Post
So tell me, if a NG WH lasts 3 yrs what is the likelihood that it will last another 3 yrs? And how many samples are you basing this on?
http://www.surveysystem.com/sscalc.htm

You are one tenacious dude.
Average NG water heater around here, last 14 to 15 years on city water. In residential applications.

There are some areas. that they don't make it 10 years around here. And its directly related to their well water.

You forget. You base your supposed statistics on vague info posted by other people(home owners, DIYers, and tradesmen). Without you having any real experience in any or most of what your talking about.
So you have no idea of what conditions exist in the applications where these units are installed.


I'm not tenacious. Just hate to see your constant misguiding post. That you use fake(weather you realize it or not) numbers to make them look like you know what your talking about.




Just acouple general questions for YOU. Which element on an electric water heater causes more tank failures then the other one? And why?
What is the primary cause of a tank blow out?
Why did manufacturers switch back to using 2 elements instead of a single lower element?

Advertisement

beenthere is online now   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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Kitchen Faucet Cold Water Runs Hot Mthrboard Plumbing 8 08-02-2009 07:59 AM
Water heater pressure relief valve confusion Flt_Simulation Plumbing 4 07-11-2009 11:02 AM
Water connections for new water heater diggerdave Plumbing 16 03-16-2009 11:36 AM
Gas Water Heater Problem (photo) Caerus Plumbing 15 11-03-2008 03:24 AM




Top of Page | View New Posts