[Shop-talk] tankless/instant water heater

[Jim Stone]

It is plumbed to the hot water line.  These heaters have two potential uses: as a sole source of hot water (e.g., for a sink where there isn’t another hot water source) or as supplemental heat for situations like mine.  For us, it is really just for hand washing and dish washing and not to have to waste so much water waiting for the main heater to kick in.  I don’t notice a drop off after extended use, so I assume 7 gallons is enough to allow the main hot water to come through.  The installation instructions cover both methods and do warn you not to set the heat on the main unit too high; as I recall, the max for incoming water was something like 140º.

Jim

> On Jan 25, 2022, at 10:09 AM, Jeff Scarbrough <fishplate at gmail.com> wrote:
> 
> So, is this installed in the cold water line?  Our master bath is a
> long way from the primary water heater, and it takes a while for warm
> water to make its way up.  But I'd have to plumb the tank outlet into
> the regular hot water supply or take 4 minute showers.  Or plumb it
> with a hot water supply...
> 
> On Tue, Jan 25, 2022 at 9:40 AM Jim Stone <1789alpine at gmail.com> wrote:
>> 
>> I got tired of waiting for hot water in my kitchen (my dissatisfaction with my Rheem tankless water heater is a subject for a different day) and installed a 7 gallon Bosch water heater in the basement, as close to the kitchen faucet as I could get.  It makes an incredible difference and my wife considers it one of the best improvements I have made to our house in years. I am inclined to agree with her.  The 7 gallon version has to be hard-wired to a dedicated circuit, but the 2.5 and 4 gallon versions can be plugged in.  One of those should meet your needs pretty easily.  Here is a link to the Bosch units, although I am sure other brands will work just as well.
>> 
>> https://smile.amazon.com/Bosch-Mini-Tank-Tronic-3000-ES4/dp/B0148O65IE/ref=sr_1_2_sspa?crid=1GEI41I05EXPQ&keywords=under%2Bsink%2Bwater%2Bheater&qid=1643121197&sprefix=under%2Bsink%2Bwater%2Bheater%2Caps%2C72&sr=8-2-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyTzhaMk9QNzlZMlhDJmVuY3J5cHRlZElkPUExMDEwNzk5M0RPREhQQTVYSllVUiZlbmNyeXB0ZWRBZElkPUEwMDIxNTQ4MzEwRUQyUUZBTThRSyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1
>> 
>> Jim
>> 
>> On Jan 24, 2022, at 5:26 PM, john niolon <jniolon at att.net> wrote:
>> 
>> tired of just cold (really cold) water in the shop sink./..thinking about a tankless/instant water heater.  Would like to stay
>> with 120v if possible to avoid additional wiring (me crawling around in attic dragging wire with bad knees and hips.  I have an available plug
>> within 6 ' of sink
>> 
>> pros and cons ? recommendations.
>> This will strictly be a hand washing sink to be used after putting up my tools  (shop content)
>> 
>> thanks
>> john
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