Electric tankless for domestic ?

ScottMP

who would like to install a tankless instantanous system for thier domestic hot water.

None of my suppliers has such a beast and I don't know if I have ever seen one.

I know some Wallie knows about one ??

Scott

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Brad White_107

Got Amps?

Scott,

In my office we have what I believe is an In Sink-erator unit for a remote lavatory. Fits under the counter. I believe it runs about 12.0 kW and gives 1 GPM or so. Enough for a hand-wash.

They also make them as a booster for commercial kitchens such as at the dishwasher.

If you want one for a shower, my lights are going to dim.

ScottMP

ahhhhh

The whole shower thing with dim lights makes me nervous Brad

I am familiar with the point of use units and have used them in certain applications but they where wondering about doing a bath and kitchen with one unit.

Thanks Brad.

Anyone ?

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Scott Gregg

Electric eh?

Scott,

Yep, I know a good bit about them. Here are some high points:

The electrics are not like the gas from Noritz and Rinnai. You CAN flow more through them than they can heat and get luke warm water. You have to provide flow control manually when filling tubs and things like that. If you are in a shower and someone opens a tub spout, you are going to get a surprise.

It takes about 100-120 AMPS for an electric to handle even a 1-2 bath home or appartment. Check out the temp rise charts. Most only do about 2.5GPM - 4GPM @ 60* rise. This time of year they work great. In the winter not so great.

They will work for these jobs but the HO needs to know what to expect. All in all, I'd sooner speak to them about adding a small propane tank. The same kinds used for gas logs will run a Noritz for about 6 months under normal use.

Steible ELtron seems to be one of the best Electrics out there and they do have their place. Seems like in new construction appartments and condos would be best.

Hope that helps.

ScottMP

Thanks Scott

Thats pretty much what I thought, but when I talk to customers I never say never. As Dans say's " Let me get back to you ... "

Thanks for the Help.

Scott

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singh

Wait a sec

> Thats pretty much what I thought, but when I talk

> to customers I never say never. As Dans say's "

> Let me get back to you ... "

>

> Thanks for the

> Help.

>

> Scott

>

> _A

> HREF="http://www.heatinghelp.com/getListed.cfm?id=

> 237&Step=30"_To Learn More About This

> Professional, Click Here to Visit Their Ad in

> "Find A Professional"_/A_





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singh

Wait a sec

I have one in my own home. Had it for the last six years.
Far cheaper than any gas tankless.
Works just as well, two showers simultaneous easily done.
And my well is 500' deep, in winter the water is about 47* .
I can easily get a 70* rise out of it.
Yes, filling up my tub with my Roman tub spout needs to be throttle back.
Yes, I use 4- 30amp breakers, one for each element.
I also have scale stopper filter before elements to keep them from caking.
Softner needed also if water is hard.
It's a Seisco ,check their site.
Electric bill for whole house runs about 175.00 a month, it goes up a little in the winter since I also have an electric boiler. But thats a discussion for another thread


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Scott Gregg

Energy differance

The last EG sticker I saw for an electric 120amp tankless was $250/yr. Not too bad all things considered, but the gas tankless is $176.

Siesco still scares me. Ferg tossed them out after repeated problems with the line. (Leakers mainly) Maybe they got it fixed finally. If they did they have a bit of PR work to do to control damage done. Awfully hard to get tossed out of a distribution center once your in.

The stories about dimming lights do not ever come from those who have electric tankless though. I think we will see a lot of them especially if they get their technology up to that of the gas models.

The good news is they can be a real job saver as a closed loop heat source. Look at the flow rates at a 20* rise on a 120amp unit!

singh

Dimming lights

not a problem.
they flicker when I turn faucet on then off quickly. But constant run, no dimming at all.
I don't know about leaks, six years so far, one of the earlier models.
I never took to much meaning from the EG guides, interesting though since
gas has a exhaust vent.
Over all , I'm happy, especially when my electric bill went from $500 with a 50 gal elec, to $175, I remember the utility checking things out ,
I'll never install gas unit in my own house. My plan is to link to a solar collector one day : )


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