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Ends at 12PM PT. Amazon has the EcoSmart 27kW Self Modulating 5.3 GPM Electric Tankless Water Heater for $372 with free shipping. Features digital temperature control and is designed to be energy efficient. Claims to save you up to 60% off your water heating cost. Excellent Amazon reviews.
Retail: $570

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    dennis007 Ben's cred: 206
    Posted 9:04 am PST 11/9/13

    Whopping (3) 40amp double pole. Make sure you install this thing next to your electrical panel. 50 amp wire ain't cheap plus electrician overhead and pulling a permit this could run in thousand $$$ quick. On the plus side lifetime warranty on controller board and heating element that if you remove them yourself may not be a big deal for some diy.

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    common_cents Ben's cred: 75
    Posted 10:12 am PST 11/9/13

    Yeah, those initial install costs can be downright ugly if you don't have an adequate breaker box. A couple thousand isn't uncommon.

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    mcnabney Ben's cred: 70
    Posted 11:16 am PST 11/9/13

    27kW is far more heating than an average house would use.
    This will heat 5 gallons/minute - or enough to run THREE hot showers forever.

    Get a 15-18kW version. It can handle two dishwasher/showers concurrently. That is about the maximum load for a residential use.

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    fc Ben's cred: 22
    Posted 11:25 am PST 11/9/13

    @mcNabey: I agree, I bought a Rheem brand heater for $185 and as long as its just one adult taking a shower at the same time it is plenty good enough

    http://www.amazon.com/gp/product/B003UHUSGQ/ref=wms_ohs_product?ie=UTF8&psc=1

    In fact I think this monster advertised here will be an energy hog and actually defeat the main point of saving money.

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    fc Ben's cred: 22
    Posted 11:28 am PST 11/9/13

    The one I just linked to I have yet to ever use it on greater than 50% setting of the temperature knob. Greater than 60% will actually burn you, its TOO HOT.

    With that in mind I would recommend this smaller version below for those who want to just take one shower at the same time:

    http://www.amazon.com/Rheem-RTE-Electric-Tankless-Heater/dp/B003UHUSJI/ref=s14?ie=UTF8&qid=1384025015&sr=8-4&keywords=rheem

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    MWplus3 Ben's cred: 191
    Posted 11:51 am PST 11/9/13

    One reviewer mentioned a cost of $900 to have it installed. Guess I'll stick with my clunky tank.

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    common_cents Ben's cred: 75
    Posted 12:08 pm PST 11/9/13

    @fc. It seems it's highly dependent on the temperature of the water entering the unit. Apparently if the water is in the 40F region, a lower power unit may not be adequate to heat the water quickly enough.

    Moreover, a more powerful unit shouldn't, in theory, cost any more to run. It requires a fixed amount of heat to produce the water you want. The installation will be more due to high gauge wire/more breakers etc. A bigger old school tank would cost more to run because of the heat loss from having more area to lose heat, but these tankless ones don't have that issue.

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    dennis007 Ben's cred: 206
    Posted 2:30 pm PST 11/9/13

    Rule of thumb is always get next bigger capacity. There is a control temperature knob which can be decrease/increase. If you get the smaller unit and need to expand at later time, well, SOL.

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    ken2400 Ben's cred: 14
    Posted 3:35 pm PST 11/9/13

    To save $$ with a tank hot water heater wrap it with insolation. I bought R19 faced for my gas tank and insured I left room at the top and bottom for venting. In the summer it the only thing at the time that used gas and I could see at least 20% difference. I also switched to a gas drier and that helped too.

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    hammond_egger Ben's cred: 19
    Posted 7:06 pm PST 11/9/13

    dennis007 wrote:
    Rule of thumb is always get next bigger capacity. There is a control temperature knob which can be decrease/increase. If you get the smaller unit and need to expand at later time, well, SOL.


    Well, no, not SOL. If you need to expand at a later time, you just buy a bigger one and have it installed. They're not rationing tankless water heaters. You can buy as many as you want at any time.

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    common_cents Ben's cred: 75
    Posted 8:50 pm PST 11/9/13

    hammond, you're kinda missing the point. If you install a lower capacity/output unit, you won't have the breaker box/wire gauge to hook up a high capacity unit. You're out the cost of the smaller unit as well as the additional installation fees incurred later. That's several hundred dollars.

    By buying a higher capacity unit, you pay a little more upfront to be sure you won't have temperature/output issues.

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    mleejr Ben's cred: 17
    Posted 5:20 am PST 11/10/13

    There's a lot of ignorance in this thread. People are making statements with no obvious knowledge of how it actually works. It's like this whole thread is based on the myths of tankless, electric, water heaters. Let me debunk them:
    * I HAVE one and installed it myself.
    * It's NOT going to use any more electricity than a smaller unit if you don't USE any more hot water than what one would need for a smaller unit. This unit has 3 heating elements. Each one comes into effect when more load (water) is put on it, say one shower. The more load, say 1 more shower, causes 1 more heating element to kick on. If you have 3 showers, it may be using all 3. It may not. It may take two heating elements for 3 showers. Either way, the smaller units just have fewer heating elements.
    * As for this costing $900 to install. I was told the same thing. That is why I installed it myself. It is not that complicated. But, I did have a separate basement breaker box and those 3 dipoles filled up the rest of it. You can do it yourself.
    * One thing someone got right was that it DOES cost a lot for electrical cable so MEASURE JUST OVER EXACTLY what you need. I spent about $120 or so just in electrical cable for about 30 feet of wire. 8 gauge. I got a breaker box installed, with parts, for $150 about 10 years ago or so so this wasn't part of my cost for this.

    (continued...)

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    mleejr Ben's cred: 17
    Posted 5:21 am PST 11/10/13

    (continued...)

    * As for the electricity usage: Our electric bill went DOWN compared to the same time last year (our bill shows us this) the first full month we had this. This obviously doesn't mean it creates electricity, we obviously used less that month, but the gist was there was no discernible increase in electricity usage. I did price this out with a plumber who gave me an outrageous quote to install it and he said he recommended a gas/tankless because this one will have "outrageous electricity costs" and the tankless will save us money in the long run. That is bogus. Gas is very expensive here in Georgia, and even if it uses 60% less than our old tank water heater, that's STILL more than the cost of the electricity this unit uses. Add to the fact that this is THOUSANDS less than the gas tankless heater. It is irresponsible to say you are ever going to make up those costs through the life of the heater even if it was cheaper per month than the electric unit because it would, at best, be a few bucks a month. Basically, the unit is thousands cheaper AND it runs cheaper per month (only a few bucks, but still...)

    I actually filmed my installation to help anyone else because there was no good installation video and figured people could learn from my mistakes. I will post it later.

    Hope this helps clear things up. I LOVE my unit.

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