Stiebel Eltron202151 DHX 15-2 Plus Point-of-Use Tankless Electronic Water Heater, 240V, 14400 Watts

Ok, so people interested in electric tankless water heaters really should dig into the fine print. Our ground water is 50 F; a nice shower is 105 F ... so we need to raise the temp 55 deg ... which is ~ 2.5 gal per min with 14.4 kW / 240V & 60A. Which is ... good enough AND you can shower like that indefinitely (unlike running out of water with a tank unit or a nefarious cold flush). But it's different, and you need to calculate your hot water needs against your electric service.We're very happy with this, but there are trade-offs.

My "handyman ain't got a clue what he's doing" water heater replacement project turned out pretty darn sweet kids! I'm very proud of myself for taking this project on as it had e-v-e-r-y-thing that intimidates me. Plumbing & electrical work are something I shy away from & put off as long as I can.I must admit that I never turned the main power off but felt safe while I did what I did inside the breaker box. Not proud but it's such a pain to have to reset everything once power is restored so I chanced it. I'd do it again as all connections were made outside the box. Once the connections were made I just snapped the flipped-to-off 60 amp circuit breaker back into place. Those heavy, black & white 6/2 wires on the right sure were a challenge to feed & loop the wire inside the box & then bend them into place like that though.Playing w/the temperature setting but right now it's set to 120* but I'm able to take it up to 140* if I'd like. Time will tell as to where we keep it set at.I thought it out, designed it on paper & then decided what & how much stuff we'd need to complete it. The last picture is of what I had left after completing the job. I'd call that an excellent idea of what was needed. No waste, that's how I roll. Those 3" long pieces of 6/2 wire is where I cut it a little long to get inside the water heater unit to wire it in.Those SharkBite fittings, pipe & connectors are a bit expensive but they're the whoop & make your plumbing a cinch. I mean look at how clean & professional looking that install is!!! I'm n-o-t a plumber & this was my 1st attempt at a project like this.Really looking forward to seeing what the savings will be as compared to a traditional tanked water heater that runs all the time. This is an on-demand type system & only heats the water when there's demand for hot water. It should be another 20-plus years before it needs any attention. Money back in our pocket is the way I look at it...#KillinThatKilowattUsage

For a long time I have been an evangelist of sorts for what I call POUET - Point Of Use Electric Tankless. I have done it in three house. Basically, it means having an electric tankless at virtually every water source. That's between 4-6 units per house. I'm a believer in POUET's ability to save water and power. PIus I love-love not waiting for hot water. I published an article once on Green Building Advisor. Phew! Be ready for a firestorm anytime you speak out on anthing different.I have bought...I dunno... maybe 2 dozen different units in my quest. This one is by far and away the best. It works great - but most properly sized units do that. Besides the great graphical interface, what is amazing is that this unit actually controls (slows) water flow to achieve set temperature. Amazing! Finally!I have a very unusual floating house with long exposed water line. It's winter right now and the incoming water can be near freezing. I set the temp to 102 for a shower, then watch the screen as the unit slows the flow down and down and down, from a start of 3.5 GPM down to .9 GPM (last night). This is something I used to have to do manually and tediously. Truly amazing!There is one thing that I wish it did better: As I said, I have a long, exposed water line. In the summertime, the incoming water can be quite hot. This unit has a unique feature in that it has the ability to tell you that the incoming water is hotter than the set temperure. In other words, it has a inlet temp sensor, but it only comes on in "over temp" conditions. Why not tell the inlet temp all the time? Inlet temp is a useful piece of info for tankless. I hope that made sense, but it may be TMI.