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Old 07-05-2020, 08:52 PM   #11
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If you have the power (a small nuclear reactor would suffice) and the money, Sieibel-Eltron makes some units that will handle a shower and a lavy at the same time, maybe even in a Minnesota winter.

https://www.stiebel-eltron-usa.com/
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Old 07-05-2020, 09:04 PM   #12
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heres a bosch whole house for under $400 bucks..for that price or around it, go for it and install a tankless..any reason he wants to change from the 30 gallon tank? if not just install a new one...only reason I would change was if he was running out of hot water..



https://www.supplyhouse.com/Bosch-WH...s-Water-Heater
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Old 07-06-2020, 04:52 PM   #13
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Quote:
Originally Posted by ShtRnsdownhill View Post
https://www.amazon.com/Bosch-Mini-Ta...s%2C162&sr=8-5


this sight suxs, you change the text size and links dont show



I've installed a number of those as that's what our supply house carries for under 20 gallons and they seem good enough. Just make sure when they leak it's not an issue. I have seen some get installed above the outlet they are plugged into and it's not pretty. One of the reasons I carry outlets and romex.






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Old 07-06-2020, 04:55 PM   #14
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Quote:
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Its my friends farm shop and I believe its just a bathroom and a sink. A small 6 gallon for a hand sink or 2 is not an option as there is a shower in the bathroom. I dont believe anyone uses the shower but its there and I would think OSHA probably would require it to work as they probably have some chemicals sitting around out there.

I am normally not a fan of tankless but thought this might be one of the times it would be a viable option. I have never put in an electric tankless so I did not know if they need any electrical work done or just hook up the existing 240.

I'll just replace it with a new 30 gallon to keep it simple.

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The 30 gallon tank is the perfect option for this kind of place. Large enough that you can take a decent shower, small enough to put up on a shelf, and it takes standard parts.


I really can't see what the objection is to another 30. Going tankless only offers a space savings and has many downsides. Given that you likely have less than 100amp service in the barn anyway tankless electric would be a terrible choice.









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Old 07-06-2020, 04:58 PM   #15
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The first time your buddy goes to take a shower with a tankless electric sized for the double 30 amp breakers he will regret not getting another 30 gallon tank style.

If you go tankless you'll need to heavily upsize the electrical service, not only from the panel to the heater but likely the line to the barn as well.


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Old 07-07-2020, 05:49 PM   #16
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Thanks for the input on the tankless. The answer was what I had expected. I figured another 30 gal tank was the way to go but wasn't sure if a tankless was in need of any changes to the electrical.

We went with another 30 gallon tank. After pulling the old one out I found this mouse nest deal and mold so I told him he should take off the sheet rock and clean it up and fix it before we put in the new tank.

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Old 07-07-2020, 06:10 PM   #17
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I personally own an electric tankless at my cabin. IT IS A PIECE OF SCHIT. YOU DO NOT WANT ONE. Also, you will almost surely have to have more electrical work done. Mine runs on three seperate -30 amp breakers. Seriously NOT WORTH IT.
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Old 07-07-2020, 07:28 PM   #18
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Quote:
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......After pulling the old one out I found this mouse nest deal and mold so I told him he should take off the sheet rock and clean it up and fix it before we put in the new tank.

You could put the 30 on a shelf and have some easily cleaned space below it


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Old 07-07-2020, 09:19 PM   #19
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Quote:
Originally Posted by jakewilcox View Post
I personally own an electric tankless at my cabin. IT IS A PIECE OF SCHIT. YOU DO NOT WANT ONE. Also, you will almost surely have to have more electrical work done. Mine runs on three seperate -30 amp breakers. Seriously NOT WORTH IT.
I'm no fan of any type of Electric hot water source unless you have solar panels and you'd rather burn the energy than sell it to your electricity supplier.
However, I can't let the above comment go without a rebuttal.
Like many pieces of equipment, if the product is crappy, that does not mean all
such products are. Earlier in this thread, I mentioned Steibel Eltron. Their heaters are expensive, they require a whole lot of power, but they work as advertised.
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Old 07-07-2020, 10:12 PM   #20
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Here’s the thing-

The equivalent to a 199000 btu gas tankless would be 58 KW.

At 240V that would be 242 amps.

So you start backing up from say a 200 amp service (typical around here) and the reality is you are looking at a fraction of what you could do with gas.
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