tankless water heater

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home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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todd wrote:

Nope, not those. The Germans make better ones. I have 2.
--
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Do you have gas, my gas is 40% cheaper than my electricity per Btu, do you have 120a open.
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If you are using electric water heating, now I wouldn't bother. There is not really any gain in economy.
Your lights may dim and you could overload your electric service, depending on how modern your wiring / fuse panel is.
I doubt you will have enough hot water supply to supply a shower and a dish washer at the same time. My rinnai gas unit runs 185,000 BTU and it can be "just barely enough" sometimes.
Learn the BTU math and get educated so they can't sell you the "infinite supply of hot water" BS. If your water comes form the ground at 45F your BTU cannot produce as much volume due to a limited BTU rating. Do the math.
There is also (in a gas unit moreso) a delay in reecognizing water demand so if you trun the tap on and off repeatedly you may never get hot water. This inputs a cold water shot ("sandwich") in your pipes if you did this in the shower.
home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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Josepi wrote:

Somebody nudge Josepi. He's stuck.
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Apologies to all. Damn NNTP is screwing up and doesn't send confirm code.
Now this will probably not go through or repeat a dozen times...LOL
Somebody nudge Josepi. He's stuck.
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Been having the same problem the past few days. I am using teranews as well but wasn't sure of XNews was part of the issue. Since you are using OE, XNews is probably not a contributor.
Maybe 1 out of 10 works properly.
If you haven't figured it out, just send and if Waiting... persists then just Stop it. It has been sent and will show up. It will not show up in your sent folder (Xnews anyway).
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If you are using electric water heating, now I wouldn't bother. There is not really any gain in economy.
Your lights may dim and you could overload your electric service, depending on how modern your wiring / fuse panel is.
I doubt you will have enough hot water supply to supply a shower and a dish washer at the same time. My rinnai gas unit runs 185,000 BTU and it can be "just barely enough" sometimes.
Learn the BTU math and get educated so they can't sell you the "infinite supply of hot water" BS. If your water comes form the ground at 45F your BTU cannot produce as much volume due to a limited BTU rating. Do the math.
There is also (in a gas unit moreso) a delay in reecognizing water demand so if you trun the tap on and off repeatedly you may never get hot water. This inputs a cold water shot ("sandwich") in your pipes if you did this in the shower.
home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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If you are using electric water heating, now I wouldn't bother. There is not really any gain in economy.
Your lights may dim and you could overload your electric service, depending on how modern your wiring / fuse panel is.
I doubt you will have enough hot water supply to supply a shower and a dish washer at the same time. My rinnai gas unit runs 185,000 BTU and it can be "just barely enough" sometimes.
Learn the BTU math and get educated so they can't sell you the "infinite supply of hot water" BS. If your water comes form the ground at 45F your BTU cannot produce as much volume due to a limited BTU rating. Do the math.
There is also (in a gas unit moreso) a delay in reecognizing water demand so if you trun the tap on and off repeatedly you may never get hot water. This inputs a cold water shot ("sandwich") in your pipes if you did this in the shower.
home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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If you are using electric water heating, now I wouldn't bother. There is not really any gain in economy.
Your lights may dim and you could overload your electric service, depending on how modern your wiring / fuse panel is.
I doubt you will have enough hot water supply to supply a shower and a dish washer at the same time. My rinnai gas unit runs 185,000 BTU and it can be "just barely enough" sometimes.
Learn the BTU math and get educated so they can't sell you the "infinite supply of hot water" BS. If your water comes form the ground at 45F your BTU cannot produce as much volume due to a limited BTU rating. Do the math.
There is also (in a gas unit moreso) a delay in reecognizing water demand so if you trun the tap on and off repeatedly you may never get hot water. This inputs a cold water shot ("sandwich") in your pipes if you did this in the shower.
home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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Damn teranews server doing again!
My apologies for the multiple postings.
home depot and lowes sells these, models requiring either 2 x 40 amp or 3 x 40 amp breakers, depending on power
has anyone installed these and what are your observations / recommendations ?
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On 10-11-29 05:34 AM, todd wrote:

Don't do it. A neighbour converted from electric water heat to a normal gas fired tank. Her monthly electric bill went down by over three hundred dollars...and that is at 8.3 cents for a kilowatt hour.
Hers was the 2 X 30A version of an 'instant' on water heater setup.
mike
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On 11/30/2010 8:36 PM, m II wrote:

She must have had a short circuit or something wrong with the unit.
$300 at 8.3 cents would be about 3600 kWh. That's on the order of 12 million BTU, enough to heat almost 15000 gallons of water from 40 degf to 140 degf.
If she really uses that much hot-water in a month, that's one loooonnnnggg shower :-)
daestrom
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On 10-12-02 03:57 PM, daestrom wrote:

I messed up that posting. There were two heater elements installed in the copper hot water line. Each was 240 volt 30 amps, So there were two 2 pole 30 amp breakers.
No storage tank at all. A thermostat, via a relay, would kick in the elements. They were threaded into 1 inch 'T' fittings. This was nothing like the newer Bosch or similar tankless units.
What she saved in installation costs was made up for very quickly by energy usage. I don't remember if they had in floor heating or a hot tub on top of the normal hot water demands.
mike
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30 dollars ok, 300 no way unless she had a major short.
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ransley you dont know how many teenagers live there.......
neighbor may have converted to other gas appliances too, like stove dryer and even furnace.....
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On Sun, 5 Dec 2010 08:49:28 -0800 (PST), " snipped-for-privacy@aol.com"

My plumber friends say don't expect to save any money with a tankless heater, long term.
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snipped-for-privacy@snyder.on.ca wrote:

Can you at least break even? I am more paranoid about the tank breaking and I don't find it for awhile.
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koala bears: food, water, shelter and something to crap on."
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put a leak alarm at the tank....
tanks generally last a long time.
so buy a 12 year warrantied tank and replace at 9 years.
or add a drip pan or other protection in case the tank leaks
and who is to say a tankless NEVER LEAKS?
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Energy savings wasn't a consideration for me - I needed the space upstairs, and like you, was paranoid about a tank above my head.

Who would hear it when you're out of town?

Sage advice.

I had that - turns out the drain was plugged, so that wouldn't have saved my bacon anyway.

Mine's outside now, so the lawn will just get watered if it does!
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