[Shop-talk] Shop water heater

[Dave C]

I'm normally not a big fan of residential tankless heaters, but I think 
this might be one of the few situations where a  small tankless might 
pencil out assuming you have the amps available.  I don't think I'd want 
to take a shower with a 6 gallon tank, and keeping a 20 gallon tank hot 
for the little use it would see would add up.


On 10/2/2012 10:28 AM, Scott wrote:
> So my new garage has a bathroom in it. I like the feature very much, 
> with one exception: it's on the opposite side of the house from the 
> water heater.
>
> It takes a few minutes of running the water to get hot water.  I don't 
> want to run a pump, or plumb a loop, so I thought I'd install a water 
> heater near the faucet and shower.
>
> What I'm wondering is what kind and capacity I should use. My first 
> thought was a small 6- or 10-gallon tank heater, and plumb it to the 
> existing hot water line. I'd bet there are no more than two gallons of 
> water in the lines, so by the time the small heater is out of hot 
> water, the hot water from the main tank would be there. But then I 
> wonder if I should go with a larger capacity second heater to minimize 
> any temperature changes, etc.
>
> Then I considered a tankless heater for the energy savings and felt a 
> bad case of shipwright's disease kicking in...
>
> I'm putting this thing in the attic and I'd like to get this project 
> done. What do you guys think? A small tank heater, 6 to 20 gallons? 
> What size? Or should I go for the tankless?
>
> Thanks.
>
> Scott
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