Rated 4.3 out of 5 by 22
Rated 5.0 out of 5.0 by Pats12 Electric Tankless Water Heater Stiebel Eltron
Great product, now for the nuts and bolts. Lets make sure one knows the reason for a tankless. 1) space 2) save money 3) the need for endless hot water. Now lets make sure one knows what it is NOT. Tankless is not instant hot water. For the record it takes longer to get to your faucet or tub than a tank unit. Why b/c of no reservoir and in order to make hot water the unit has to sense flow and how much flow.On electric you have flow determines the amount of current or scales the current back and forth. Gas units the burner uses more gas or less by flow of water. My electric Tempra 29 plus I had to run 3 separate 8 gauge wires. Breakers were 3 x 50 amp double pull. This unit delivering full power for hot water make up,l devours 120 amps. So far one month in I enjoy it. In coming water or ground water temperature in conjunction with how hot you want the water called (rise) dictates what size unit you go with. This will tell you gpm (gallons per minute) the unit will deliver. Beware of your electrical panel. The breaker space needed and service to handle the type and size unit you choose. Typically these should save you 15-20% on your electric bill. I like mine. I choose for space saving and money. One note you can use a small tank and tankless at the same time. The tank would heat water 20 to 30 degrees and the tankless would bring the temperature the rest of the way. I believe you would save money but space would be gone. I have 68 degrees coming in and heat to 118 to 120. If you call for more hot water than it can heat you still get hot but not as hot as you set it. Beats a tank unit when the water just turns cold.Hope this helps
January 11, 2015
Rated 5.0 out of 5.0 by Eslcsl1030 Excellent product! Works well for whole house!
Background: We originally had a 50 gallon propane hot water heater, coupled with a hydronic air handler for home heating. The combined usage made for very expensive propane bills, so we decided to upgrade to a tankless system. After reading reviews and doing some homework, we decided this was the best unit for us.
Homework: We live in the Pacific Northwest and our inlet temperature is around 40 degrees, so we were concerned that the resultant temperature rise would limit flow beyond usage but this system delivers! When deciding if this system is the right one for you, take into account that you will need room for 3 double throw 50 amp breakers(6 slots) and atleast a 200 amp electrical service to your home. Wiring requires 8/3 wire (w/o ground). If you are atleast somewhat competent with electrical work, you can install this yourself no problem. Took me about a day to do it all myself.
The system keeps and maintains 123 degrees comfortably for dishwasher, hydronic furnace, laundry, and shower at same time (although we have low flow energy efficient items).
The cons to this system is the expense of copper wire and items required to install. Even if you do it yourself your looking at a couple hundred dollars for just the hardware but in my opinion it will make it up in a few years from not having to heat the water all day and night while its not being used. The next con is that this system requires a larger pull on demand to activate the heating element. It's not an issue really but if you like to just turn hot water to a trickle, this will not work. The last possible con would be its a 28kw system so it's a huge electrical pull when used. Just make sure your home has enough room left over to use this system before you buy it. Just for a reference, I calculated that it will cost us $3.28 for every hour of run time of the water heater.
Over all it's a great unit, works as advertised, heat is constant and nice and even regardless of what's being turned on or off. The benefit of the "plus" system vice the other is that this system will automatically throttle pressure to ensure temperature maintains consistency. Good value . I recommend!
March 5, 2013
Rated 4.0 out of 5.0 by chris I recommend this product over all other instant w/heaters
I have had the tempra 29 installed in my home for over 5 years now. All though i am not convinced that it is as efficient as they claim. i have over seen several alternative brands in homes that i have constructed from gas to electric installations and chose this particular brand and size for my own personal home and have been overall pleased with my decision. Your flows are limited when using these type heaters which means slower fill times. do the math. 30 minutes to fill a bath tub @ 14.4KW = 5,256Kw a year for each person in you home that baths daily. Thats more than a 50 gal tank heater uses each year. So my suggestion is to not install to save money but for convenience only. Further more by code you will need a 400amp service to install this beast in new construction.
March 11, 2013
Rated 5.0 out of 5.0 by Ealvb Unlimited hot water
I had this unit installed and had hot water in minutes. The electrician charged around $600 to run wiring. I did the plumbing and instal myself. It was very easy to put on the wall. I used shark bite fitting. I noticed a savings of about $100 on my last electric bill but I'll try to update this review because it went from very cold to average temp outside so I think the heat not being on affected my bill as well. I have high flow shower heads and noticed the pressure was a little less but not that bad. If you run several appliances at one time then the pressure goes down even more. I just don't do wash with hot water while I'm showering and that seems to work fine. Overall I'm very happy. I'm saving money and have unlimited hot water. It gets extremely hot so be careful. Hope this helps. Thanks
May 5, 2013
Rated 5.0 out of 5.0 by nshooty GREAT PRODUCT!!!!
I have been using this water heater for a week now. I had an American Tankless brand for 6 years before this. I tell you what, the craftsmanship and quality of this unit blows the American Tankless out of the water. I had nothing but problems with the previous unit and that is why I purchased this one. So far I have not had any issues and it produces HOT water ALL the time. It is very user friendly and the temperature is adustable by 1 degree increments, which is amazing in order to get the temperature just right. My previous unit was 5 degree increments and it seemed to be always to hot or to cold.
Originally I did have to have an electrician wire in 3 circuits as inducated in the installation manual. Other than that, this thing took maybe 30 minutes to install, it even fit perfectily to the dimensions I had with the previous tankless water heater.
My only hesitation was that it is made in Germany. After thinking about it, that is probably why it is such a good tankless water heater as this technology has been around forever in Europe. My previous one was made in America as that was one of the main reasons I bought it. Unfortunately, American manufacturer's are a little behind with this technology and it still seems like they are still working the bugs out.
October 25, 2012
Rated 4.0 out of 5.0 by Rich worth the buy
Need to have an electrician do the install, hard to find the proper breakers for this. Water takes a minute or so to make it to the variuos facets in the house, but once the hot water comes it's endless. Can even have 2 to 3 areas using hot water and still have suffiecient hot water for a shower.
May 16, 2012
Rated 4.0 out of 5.0 by DH177 like the size and easy of installation.
Really nice to have hot water after my wife and kids all take baths and showers!!
May 27, 2014
Rated 5.0 out of 5.0 by Bill Great unit
Installation took a couple of hours, mainly for the electrician. Took some time to get the temperature adjusted correctly. Wait time for hot water about the same as a standard hot water heater. Did experience flow problem at first that caused the unit to cycle on and off. This caused the water to go hot to cold. Some how the flow meter in the unit did not sense the water flow correctly. This could be a potential problem if you use water saver shower heads, otherwise this unit has worked flawlessly.
February 6, 2013