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Posted by Gary KW4Z on January 4, 2007, 7:51 am
My plans are to specify a (Gas) Tankless Hot Water Heater in our new home
for my wife and myself. I'm thinking about actualy including two of them,
one for bathrooms and one for Kitchen and Laundry demands but not sure on
the total number to have yet.
I've looked at Takagi, Rinnai, Noritz, Paloma, Bosch, and Rheem. Like
everything else most familiarity with Tankless hot water heaters comes from
advertisements on the radio and TV and of those Rinnai seems to put the most
money in that area.
Of you who have a tankless hot water heater which ones are the most trouble
free and which would you recommend? Thanks, in advance, for your help and
input.
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Posted by DerbyDad03 on January 4, 2007, 8:40 am
Along with reading the info you will get in response to your current
question in this group, may I suggest you perform a Google Groups
search on the subject. This question has been discused in
alt.home.repair, alt.building.construction, misc.consumers.house,
misc.consumers.frugal-living and many other groups. There is a lot of
information from various sources available in these groups.
Go to http://groups.google.com/ and enter your query.
Good Luck!
Gary KW4Z wrote:
> My plans are to specify a (Gas) Tankless Hot Water Heater in our new home
> for my wife and myself. I'm thinking about actualy including two of them,
> one for bathrooms and one for Kitchen and Laundry demands but not sure on
> the total number to have yet.
>
> I've looked at Takagi, Rinnai, Noritz, Paloma, Bosch, and Rheem. Like
> everything else most familiarity with Tankless hot water heaters comes from
> advertisements on the radio and TV and of those Rinnai seems to put the most
> money in that area.
>
> Of you who have a tankless hot water heater which ones are the most trouble
> free and which would you recommend? Thanks, in advance, for your help and
> input.
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Posted by hallerb@aol.com on January 4, 2007, 8:58 am
your far better off to go with 2 standard larger tanks.
are you trying to get endlkess hot water? or more concerned with saving
a little money on energy?
2 tankless will require large gas service and remember a power failure
probably means no hot water
standard tanks even forced thru wall vents have enough hot water stored
for a couple showers
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Posted by # Fred # on January 4, 2007, 10:04 am
> your far better off to go with 2 standard larger tanks.
>
> are you trying to get endlkess hot water? or more concerned with saving
> a little money on energy?
>
> 2 tankless will require large gas service and remember a power failure
> probably means no hot water
>
> standard tanks even forced thru wall vents have enough hot water stored
> for a couple showers
>
If I understand correctly, one correctly sized tankless could supply enough
hot water for all the appliances plus showers and baths at the same time. As
for the electric outages, a UPS - uninterruptible power supply, just for the
controls - should take care of that.
My concern is the reliability, and I hear some of the tankless heaters are
not good. I've been using hot water dispensers for years and those tanks
goes out about 5 years (something always goes out in about 5 years) and I
just couldn't justify replacing a tankless every 5 or even 10 years. Hot
water heater: $500, Tankless: $3,000. Tankless has to save a lot of energy
to justify the extra cost. Anyone know what the payback is for tankless?
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Posted by hallerb@aol.com on January 4, 2007, 4:55 pm
>
> If I understand correctly, one correctly sized tankless could supply enough
> hot water for all the appliances plus showers and baths at the same time. As
> for the electric outages, a UPS - uninterruptible power supply, just for the
> controls - should take care of that.
>
> My concern is the reliability, and I hear some of the tankless heaters are
> not good. I've been using hot water dispensers for years and those tanks
> goes out about 5 years (something always goes out in about 5 years) and I
> just couldn't justify replacing a tankless every 5 or even 10 years. Hot
> water heater: $500, Tankless: $3,000. Tankless has to save a lot of energy
> to justify the extra cost. Anyone know what the payback is for tankless?
the payback period exceeds the expected life of the unit, say 10 years
thats the longest warranty on a tankless. any companies locally for
service?
so for 500 bucks you can get a standard tank with a 12 year warranty.
you would have to save more than 2500 bucks before saving a dime in
energy.:( check the energy guide labels of tanks thats probably the
entire operating cost of a regular tank. mine says 250 bucks a year,
times 10 years wheres the savings?
worse assuming your tank in in a heated part of the home the wasted
energy in the heating season helps heat your home so its not wasted at
all....... for the heating season. true its a loser for AC:(
new regular tanks are actually very efficent, you can get higfher btu
models and larger tanks for never run out showers if you want. my 50
gallong 75,000 btu is near that, next tank will be 75 gallons, the 50
barely fit my existing space.... new furnace and more space.
think of another thing regular tanks are actually very reliable, other
than spring a leak at end of life few have other troubles and are a
bargain at 500 bucks.
you could likely save a few hundered a year in heating costs for your
new home by doubling wall thickness and upgraded insulation...... at
say 30 grand extra.
thats not a good deal either
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