OT: Instant hot water heater spatters

No circuits to talk about >:-} ...Jim Thompson

That's pretty damned wasteful. A small tank heater is a lot easier to insulate. I plan un putting two downstairs, one for the master bath and the other for the kitchen.

They're double wasteful (two pipes). Most just move the water heater closer to the point of use.

I have no idea why they put our water heater in the garage when there is over 2K sq.ft. of unfinished basement it could easily get lost in.

Nah, they're only about 2KW. They're being fed by the main water heater so they don't have to raise the temperature much.

Because people are still answering it?

Good point, I was thinking of a true on-demand heater.

Cheers

Is it a faulty thermostat?

On Saturday, November 25, 2017 at 10:10:37 AM UTC, snipped-for-privacy@gmail.com wrote :

have now joined the many with the same problem , didn't expect it to last f or ever but thought 5yrs at least , I had the idea it might be the vent pip e restricted , if it was able to vent enough it wouldn't blow out the water left in the supply pipe upstream from the valve , any thoughts ?

Thermostat wrong --> water boils --> sputtering starts.

Back in the days "BK" (before Keurig), I suspected that a too-high thermostat setting results in sudden "boiling"/sputtering as the pressure suddenly drops when the valve is opened.

Later I've come to believe it's simply a surface roughening of the heater tubing due to mineral content... there ain't no such thing as "pure" water, "softened" or not.

I don't know how many years we've had our Keurig dispenser, probably at least 10... but we've always fed it R/O water... yet every few months a vinegar rinse cycle. ...Jim Thompson

ast for ever but thought 5yrs at least , I had the idea it might be the ven t pipe restricted , if it was able to vent enough it wouldn't blow out the water left in the supply pipe upstream from the valve , any thoughts ?

RO water? I don't think RO makes water. Water is H2O. I guess that's a e uphemism for alcohol? I wouldn't put alcohol through a Keurig unit. That could be dangerous.

Rick C.

Are you living in a cave? "R/O" is reverse-osmosis processed water... usually done after the softener loop. ...Jim Thompson

o last for ever but thought 5yrs at least , I had the idea it might be the vent pipe restricted , if it was able to vent enough it wouldn't blow out t he water left in the supply pipe upstream from the valve , any thoughts ?

a euphemism for alcohol? I wouldn't put alcohol through a Keurig unit. Th at could be dangerous.

No, I don't live in a cave. I just don't know every single abbreviation in vented by anyone, anywhere. It's just plain stupid to use abbreviations so commonly when they aren't obvious from context. You may have thought what you wrote was clear, but it wasn't. Thanks for the clarification.

Rick C.

I took apart the hot water reservoir. It was filled with oatmeal looking gunk on the bottom and I believe that this was causing the sputtering. Hate to think that I had been drinking this. Tossed it out.

You are always drinking it. Those are just dissolved minerals. Mostly they are either ok or even good for you. But there's a lot more in the water these days that we can't get rid of without expensive methods.

Those contaminants don't necessarily precipitate out in the boiling water.

And they are found in bottled water in a similar amount.

ng gunk on the bottom and I believe that this was causing the sputtering. H ate to think that I had been drinking this. Tossed it out.

hey are either ok or even good for you. But there's a lot more in the water these days that we can't get rid of without expensive methods.

er.

Found this thread because I'm trying to find the correct part number but yo u all have it all wrong.

There is a one way check valve that is not working. It's a little ball bear ing sitting on an o-ring, It may even be a nylon ball.. I think in the manu al its the blue tube but I can't find the correct image. I know this becaus e My first two units, this failed in this way first, then the tank started to leak after I had replaced this little valve which required me replacing the whole unit. My second unit started sputtering and before I had a chance to replace the valve, I had a PGE event that took the heating element out. Insurance replaced the tank so I never bothered researching. Now my more r ecent unit is sputtering.

IIRC the oring eventually