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Posted by Donna Ohl on March 18, 2008, 1:27 am
On Sun, 16 Mar 2008 20:27:22 -0400, Don Wiss wrote:
show/hide quoted text
> There is no convenient chart to distinguish the models.
Yes there is.
The whole reason I wrote up my water heater saga was so that others benefit
from all the help people here gave me. One of the references in the thread
was the recent DECEMBER 12, 2007. CONSUMERS' DIRECTORY OF CERTIFIED
EFFICIENCY RATINGS for Residential gas, oil, and electric water heating
equipment.
http://groups.google.com/group/alt.home.repair/browse_thread/thread/8e5a55b7ffa87831/42ae7352780031d7?q=donna+ohl&lnk=ol&
Mon, 11 Feb 2008 10:54:32 EST
In that reference PDF are the efficiency ratings for the hundreds of
residential hot water heaters sold in the USA (under a handful of
manufacturers but scores of brands).
I challenge you to find a water heater efficiency rating NOT in this
36-page listing for a water heater currently sold in the USA.
http://tinyurl.com/38eh4d
(long url)
http://www.gamanet.org/gama/inforesources.nsf/vAttachmentLau
nch/C2AAFB8D41D003F485256E9000607F66/$FILE/12-07-gas-rwh.pdf
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Posted by Don Wiss on March 18, 2008, 5:46 am
show/hide quoted text
>I challenge you to find a water heater efficiency rating NOT in this
>36-page listing for a water heater currently sold in the USA.
>http://tinyurl.com/38eh4d
>(long url)
>
http://www.gamanet.org/gama/inforesources.nsf/vAttachmentLaunch/C2AAFB8D41D003F485256E9000607F66/$FILE/12-07-gas-rwh.pdf
Where's the A.O. Smith Vertex model GPHE-50 that Bubba recommended?
show/hide quoted text
Don <www.donwiss.com> (e-mail link at home page bottom).
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Posted by ransley on March 18, 2008, 10:30 am
> >I challenge you to find a water heater efficiency rating NOT in this
> >36-page listing for a water heater currently sold in the USA.
> >http://tinyurl.com/38eh4d
> >(long url)
> >http://www.gamanet.org/gama/inforesources.nsf/vAttachmentLaunch/C2AAF...
> Where's the A.O. Smith Vertex model GPHE-50 that Bubba recommended?
> Don <www.donwiss.com> (e-mail link at home page bottom).
I saw one unit near the bottom with an Energy Factor of 70, only a few
in the 60s and most in the 50-60 range. Vertex, I have a several year
old similar AO condensing ccommercial unit but I only know its 92%
efficent or so
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Posted by .p.jm on March 19, 2008, 7:04 am
wrote:
show/hide quoted text
>ransley wrote:
>>>> I challenge you to find a water heater efficiency rating NOT in this
>>>> 36-page listing for a water heater currently sold in the USA.
>>>> http://tinyurl.com/38eh4d
>>>> (long url)
>>>> http://www.gamanet.org/gama/inforesources.nsf/vAttachmentLaunch/C2AAF...
>>> Where's the A.O. Smith Vertex model GPHE-50 that Bubba recommended?
>>> Don <www.donwiss.com> (e-mail link at home page bottom).
>>
>> I saw one unit near the bottom with an Energy Factor of 70, only a few
>> in the 60s and most in the 50-60 range. Vertex, I have a several year
>> old similar AO condensing ccommercial unit but I only know its 92%
>> efficent or so
>I am aware of no water heater approaching 92% efficiency. Way too many
I have one.
It's electric :-)
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Posted by Bubba on March 19, 2008, 7:22 am
wrote:
show/hide quoted text
>ransley wrote:
>>>> I challenge you to find a water heater efficiency rating NOT in this
>>>> 36-page listing for a water heater currently sold in the USA.
>>>> http://tinyurl.com/38eh4d
>>>> (long url)
>>>> http://www.gamanet.org/gama/inforesources.nsf/vAttachmentLaunch/C2AAF...
>>> Where's the A.O. Smith Vertex model GPHE-50 that Bubba recommended?
>>> Don <www.donwiss.com> (e-mail link at home page bottom).
>>
>> I saw one unit near the bottom with an Energy Factor of 70, only a few
>> in the 60s and most in the 50-60 range. Vertex, I have a several year
>> old similar AO condensing ccommercial unit but I only know its 92%
>> efficent or so
>I am aware of no water heater approaching 92% efficiency. Way too many
AO Smith has the Vertex water heater that gets 90%
Weil-McLain has a boiler that does 98% at low temp
Bubba
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