Stiebel Eltron Tankless Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White

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Going to hook it up this summer. Hope it satisfies.

I first purchased a Stiebel Eltron Tempra 12 about 25 years ago. I had a large jacuzzi tub that I could never get filled with hot water with the original tank heater where, when the hot water runs out of the tank, it takes quite some time to heat up a new batch. The Tempra 12 solved that issue, but there are a few things to be aware of before purchasing a tankless water heater. The greatest benefit is that you truly have an endless supply of hot water, so it's no problem being the last person in a large household to take a shower - you'll still get hot water and can stay in there as long as you want. There's typically also a savings in energy costs associated with the tankless water heaters since, unlike the tank heaters that are constantly running to keep the stored water in the tank hot, the tankless water heaters only kick on when there's a demand for hot water and heats the water in "real time". While I haven't personally noticed a savings on my electric bill (electricity prices have only gone up!), it's likely been there and just difficult to notice without a true side-by-side comparison. That said, this newer "Plus" version of the Tempra 12 is auto-modulating which means, unlike the older versions that always kick on with full power any time hot water is demanded, the auto modulating will scale down the power if you just want warm water so there should be additional power savings with the Plus model. The cons and things to be aware of associated with this unit include: 1) Although people refer to these units as supplying "instant hot water", it does take a few seconds for the water to heat up, travel to the faucet, and start pouring out hot. This is to be expected with any tankless hot water heater. 2) While I am a big fan of the tankless water heaters, and this specific model, this is actually my 3rd Tempra 12 model in about 25 years. I purchased the last one in February of 2018. So, they don't seem to last too long but I have done literally zero maintenance to any of the units to date. 3) This needs to be wired to a 50 amp circuit in your circuit box. You will likely need both a plumber and an electrician to install. First, an electrician to run the power to the location you plan to install, then a plumber to install the water heater. This can increase the costs significantly, however, once it's installed at that location, a plumber or even a good handyman can easily re-install a new unit in the same location. The reason I've stayed with the Tempra 12 is that replacing it has been simple, in spite of the relatively short life. 4) Make sure you understand your household's needs for hot water. The Tempra 12 works great if you want to run a shower while doing a load of dishes or laundry simultaneously. But, if you want to have three showers going along with the dishes and laundry, this unit will likely not be able to heat enough water fast enough to supply all of the outlets. I hope this helps!

We put this heater underneath the kitchen sink on the back wall. Plumber connected it to hot water line, going to faucet and to dishwasher. Then electrician ran a dedicated 220v 50 amp line from the breaker box. This is something you want done professionally, not a do it yourself kind of job. Anyway, it has made our cooking and washing time better, taking less time to get water to the sink. It so happens in our house the main water heater is quite a ways from the kitchen (but right by the bathroom shower, so that's ok), but it would take minutes for the water in the kitchen to heat up. Now it takes 30 seconds to get hot water, and once the main water gets to the unit, it doesn't need to run anymore. So it's definitely a convenience feature which we appreciate every day. Very well made and instructions are almost clear. I recommend.

This item has saved $100 a month in water and electricity for me.. a single individual. Imagine what it could do for a family. Gone is the leaky tank. Now hot water is always available. Purchased this product since it doesn't require extensive changes to anything already there. Works with a fuse system. Hard to find anything that does these days. Highly recommend. Well worth the investment.