Home Page link

Most efficient water heater?

Home| Search | About
Login Password
Register Now! Lost Password?

HVAC Discussions - Heating, ventilation and air conditioning. 

Page 5 of 9       < 1 2 3 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Most efficient water heater? Don Wiss 03-16-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by hallerb@aol.com on March 20, 2008, 12:19 pm
you can get too would up over efficency ratings, nothing is 100% even
electric loses a little to the room.

and one must be aware that cost to buy can exceed savings on whatever
your trying to be more efficent with


Posted by Ernest Scribbler on March 20, 2008, 1:55 pm
> you can get too would up over efficency ratings, nothing is 100%

Basically what we're talking about with the efficiency of water heaters is
the percentage of the energy that's put into the system that actually gets
applied to the task of heating water. And, of course, a lot depends on where
you define the boundary of the system.



Posted by CWatters on March 20, 2008, 4:22 pm

>
> >
> > > On Wed, 19 Mar 2008 04:32:02 -0700 (PDT), ransley wrote:
> > > So, I think the fact that all none of the heat energy that went into
the
> > > electric coils goes up any flue - it's all absorbed by the water - is
> what
> > > makes the electric water heater 98% efficiency.
> >
> > Correct.
>
> Actually it's 100% efficient. I mean your reasoning is correct.
>


> you can get too would up over efficency ratings, nothing is 100% even
> electric loses a little to the room.
>

Yes I knew I was wrong the moment I posted it. I was thinking of electric
heating and forgot that when heating water some heat would be lost to the
room.



Posted by hallerb@aol.com on March 19, 2008, 8:12 am
on a tankless feeding a regular tank, it should cost no more to
operate than a regular hot water tank.

the tankless initially heats the water to whatever it can, then sends
the water to a regular tank that does its normal job.

endless hot water regular tank conveniences and the only extra cost is
the line between the tankless and regular tank, ideally it should be
short and well insulated.

true the tank will have normal tank losses.

today i have to stop at home depot and while i am there price some hot
water tanks. just to verify some of these issues:)

Posted by on March 19, 2008, 9:16 am
> on a tankless feeding a regular tank, it should cost no more to
> operate than a regular hot water tank.

Maybe not, but is sure costs a lot more in terms of buying and
installing 2 water heaters, one of which is tankless and more
expensive. With this approach, you incur the higher cost of tankless
and by having the second regular tank, you still have the standby
losses, which defeat most of the advantage of the tankless that
justify it's expense. I fail to see the point. Plenty of folks
have a gas tankless for their whole house needs and are happy with it.




>
> the tankless initially heats the water to whatever it can, then sends
> the water to a regular tank that does its normal job.
>
> endless hot water regular tank conveniences and the only extra cost is
> the line between the tankless and regular tank, ideally it should be
> short and well insulated.
>
> true the tank will have normal tank losses.
>
> today i have to stop at home depot and while i am there price some hot
> water tanks. just to verify some of these issues:)


Page 5 of 9       < 1 2 3 > last >>
Similar ThreadsPosted
Hard water & choosing an indirect water heater June 11, 2007, 7:29 am
oil hot water heater CONVERSION for pool heater January 4, 2008, 8:03 pm
Here's how to PROVE high efficient boilers are not efficient? August 9, 2006, 10:11 am
non vented water heater December 13, 2006, 1:04 pm
Venting a gas hot water heater January 15, 2007, 7:26 pm
Venting a gas hot water heater January 15, 2007, 7:28 pm
New water heater questions. July 31, 2007, 2:51 am
New water heater questions. July 31, 2007, 3:31 am
New water heater questions. July 31, 2007, 3:33 am
tankless water heater, Hi everybody. December 21, 2007, 1:21 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap