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Stiebel Eltron

Stiebel Eltron Tempra Plus 29 Tankless Water Heater, 29kW, Gray

Based on 187 reviews
Condition: New
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$799.00

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Availability: Only 1 left in stock, order soon!
Fulfilled by Westcoastsales
Arrives Monday, Nov 23
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At a glance

Condition
New
Style
Tempra 29 Plus (Discontinued Model)
Model
Tempra 29 Plus
Capacity
29 gal
Color
Gray
Material
Stainless Steel
Power Source
Electric
In the box
water heater

Features 4

  • Proven reliability
  • No venting required
  • Sleek design fits anywhere
  • Save at least 15-2% on the hot water portion of your electric bill

Description

Stiebel Eltron Tempra 29 plus electric tank less water heater, 208/240 volts the tempra plus is the most technologically advanced tank less water heater available on the market today. The tempra series has been redesigned completely inside and out - upgraded heavy-duty electronics, a simple single flow sensor design, a hinged cover for easy access, and advanced flow control for the tempra plus. Welcome to the next generation of German quality. The tempra has several advantages over a gas-type tank less water heater. Compared to many similar gas tank less models the tempra is less expensive to purchase. Installation is also much simpler and cheaper since it is not necessary to vent a tempra to the outside. Like all tempra plus series tank less water heaters, the tempra 29 plus features a digital temperature display and convenient dial selector which allows you to set the desired output water temperature at any level between 86 and 125f (30 and 52c). The tempra 29 will also automatically sense the water flow rate and temperature, calculate how much power is needed to do the job, and will apply exactly that much power so it can precisely maintain the desired output temperature regardless of whether the flow rate changes or not. Stiebel eltron tempra 29 plus electric tankless water heater, 208/240 volts specifications: Voltage: 208/240 wattage: 21.6/28.8 amperage: 3x35/3x40 min. Required circuit breaker size: 3x50 recommended wire size: 3 x 8 maximum temp. Increase: 92 weight: 17.6 width: 16 5/8 height: 14 1/2 depth: 4 5/8 working pressure: 150 psi. From the Manufacturer The Tempra® Plus is the most technologically advanced tankless water heater available on the market today. Advanced Flow Control is exclusive to the Tempra® Plus and ensures a constant temperature output no matter how great the hot water demand is. Advanced Flow Control technology works by automatically adjusting the flow of water to eliminate unpleasant temperature fluctuation. What that means to you is a consistently satisfying experience every time, all the time !

Specs 25

Brand Stiebel Eltron
Capacity 29 gallons
Power Source Electric
Special Feature Self-Modulating Power Technology, Advanced Flow Control, Proven reliability, Energy-saving up to 15-2%
Color Gray
Special Features Self-Modulating Power Technology, Advanced Flow Control, Proven reliability, Energy-saving up to 15-2%
Wattage 28.8 KW
Voltage 220 volts

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 23

Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Great Water Heater - Different Functionality/Limitations.
Style: Tempra 29 Plus (Discontinued Model)
I am very happy with my decision to switch to an on-demand style water heater. This unit, SE Tempra 29 Plus, has performed very well during the first week of use. It is capable of running at 3.3 GPM with incoming water at 49 degrees F and output at 122F. This will fill my garden tub and run a shower at the same time, or run two showers and a faucet with the flow slightly reduced. Different functionality/Limitations- Please remember when you switch to a on-demand style heater that the flow (or max number of points of use) will be limited by the power rating of the unit; however, you will not be limited by the amount of time you can use the heater. I found this ideal for the garden tub as a tank style heater can fill the tub, but is then out of commission for about an hour. The same goes for showers. Two showers and a washing machines could be ran with the tank, but after doing this the tank was down for an hour. This does not happen with the on-demand style and it will continue to put out hot water as long as you want to run it. Minor temperature fluctuations with well water - I do notice small temperature fluctuations while using the unit. I believe these are associated with the pressure tank and cycling of the well pump. When the tank is charging (well pump is running), the water drops a couple of degrees (just noticeable enough to feel, not enough to adjust the water temp). I believe this is due to the water bypassing the pressure tank and coming directly to the heater. This incoming water is slightly colder than the water that has warmed up inside the pressure tank in the crawl space. This water then makes its way through the heater and reduces the output on the hot line side (because of the constant temperature control of the plus unit). The cold line side rises in pressure due to the pump pressurizing the tank and mixes slightly more cold water. I believe this could be eliminated by adding a buffer tank (5-20gal) between the pressure tank and house inlet that would allow the water to mix and acclimate, but this would only be added if someone was extremely sensitive to temperature variations. Some other positives: Easy installation. If you know plumbing and electricity this can be installed in an afternoon if your lucky with the placement of everything. It took me a weekend by myself to install. Most of the time was spent routing the power cables and mounting boxes. Saves space, No Footprint! This unit was ideal for my house. I had a 50gal tank in my half-bath and it was an eyesore and a space hog. The SE 29 was wall mounted on the garage side of the wall without taking any floor space and minimal wall space that wasn't being utilized. Others: Unlimited hot water, Better looking than a tank heater, and easily adjustable temp. ... show more
Reviewed in the United States on August 13, 2018 by Alex
Very efficient and highly effective!! Cut my PSE electric bill down to $60/mo!
Style: Tempra 29 Plus (Discontinued Model)
So I did a lot of research and review reading before deciding on the Tempra 29. I live in the Pacific Northwest and our water can get pretty friggin cold so I wanted a unit that could handle it. With the price of the unit aside, expect to pay almost 3/4 of that for electrical and plumbing upgrades. The 3 GFCI 50 amp double pole breakers were about $100 each (got on eBay), 125' of 8/2 gauge wire was about $110 (Lowes), the Aqua-Pure AP430SS de scaling unit was about $65 (Amazon), the tankless water heater service valve kit (get it!) was about $130 (hardware store), and assorted flexible hoses for hooking up to the water inlet and outlet were about $50. Before purchasing, make sure you've got enough room in your breaker panel. The 3 double pole breakers take up some space. You'll need 3 lengths on the 8/2 wiring; one for each on the 3 220V heating elements. Luckily my breaker box is right next to the water heater so I just had to go into the attic and drop the new wire down. I had to drill a couple of bigger holes in the wall studs because of the wire thickness. The breaker panel part takes some carefulness so if you don't know what you're doing, get an electrician. I like playing with electrical and got a lot of advice from electricians in my family (dad and brother) so that helped me. As for the plumbing, it wasn't far from the inlet and outlet so it was just connecting some new hoses. I do suggest the Aqua-Pure kit mentioned earlier for longevity. Couldn't hurt for just $65 more, right? With that kit, it is suggested to put a pressure release valve in the line before the Aqua-Pure unit to make changing the filter easier. You should also get the service valve kit too. If you ever need to make repairs down the line (or want to attach a hose and fill an outdoor hot tub with preheated water) they are very necessary. Here's a little tip too for the valves...get couplings to attach between the valve unit and the Tempra unit. Without them there's not really a way to promise that when you tighten to valve onto the Tempra unit that the valve will face the way you want it when fully tightened. It will also make it easier if you attach them before you put the Tempra on the wall. We've had it up and running for 6 months now and enjoy endless, temperature adjustable, hot water. I get to take longer showers and save money on my electric bill at the same time! Win win! ... show more
Reviewed in the United States on October 19, 2014 by Callie
Great Tankless, Replaced a Tankless.
Style: Tempra 29 Plus (Discontinued Model)
We've had this running for just over a month or so now and it's been great. We replaced another tankless with this one so we are used to having tankless and had the wiring and box in place already so it was just some adjustments in the piping and building a new mount for it. We replaced an old SETS unit that was at least 10 years old. The SETS unit may have never been what we should have had to begin with because it caused a large enough draw to flicker our lights when it was in use, would cut in and out of hot and cold when it wasn't happy and had to be used at a very reduced flow in order to fill the tub (shower was okay due to a flow reducing head). It may have been to early in the development of using these for residential use too. We were planning on replacing it or getting some point of use units because the cost has come down so much over the years for those too. It started to throw the breakers so we opened it up and saw there was a small leak inside and it was effecting the electronics. We did our research and ordered this one. It was Christmas time so we paid extra for the next day delivery ($14 something with Prime), it took a few extra days to come but we were refunded the extra shipping without even asking for it, so that was fine. We did reduce the main water flow coming into the house after installing this unit (we have great pressure) and probably would have done the SETS unit some good if we had done that before this. We don't even notice the difference after several weeks and hopefully it'll save some water too. We have the unit set for 130F, which seems high but the hot water is comfortable at all taps at this setting. I have not tested what the actual temperature at any tap actually is yet. No one is melting. We have over the past couple years replaced almost all of our lighting to LEDs so we didn't experience as much flicker as we used to anyway but there is no flicker or noticed draw on anything else when the unit is running. We did replace the breakers, my husband may have changed the loading on them too....I can check if anyone needs that info. The SETs unit had a lifetime warranty but they were bought out by another company and they did not honor any warranties so we did not feel the need to continue to give them our business. The Stiebels have great reviews all around. So far I am very happy with the purchase and recommend it. ... show more
Reviewed in the United States on February 4, 2016 by J. Leonard
Tiny Monster
Style: Tempra 29 Plus (Discontinued Model)
Terrifically well-built device, obviously european. This unit went into a ski house in the Sierras where gas was not available, replacing an older conventional electric tank unit that was constantly burning itself out when renters would try to winterize the home, draining that tank and system while leaving the electrical in a low water state. Things to keep in mind: It requires three 50 amp 240-208v circuits, 28,800 watts.... and a ground wire, namely a whopping 150 amps to run, so you must have at least a 200amp service present for this sized unit. You would think that Stiebel also makes arc welders, for heavens sake. It requires at least .4 gallon per minute to activate; some bathroom faucets may be less than this. The hot and cold water connections on the Stiebel do not attach to the can in complete holes but in odd open-sided slots; the result is a less than totally secure means of attachment of them to the can when you wrench-tighten your own system leads to the Stiebel connections. Meanwhile holding onto the Stiebel connections is not easy as they are complex shapes and delicate. They can rotate out of these slots, you see, stressing the internal Stiebel system as well inside. Care is required mainly; this is not a huge problem, but clearly not an old-fashioned sort of set-up and subtle. It is remarkable how tiny the unit is, considering the electrical power it consumes. Remember the efficiency of an electric unit is nearly 100%, the drawback is the cost of same. Stiebel says do not allow the unit to freeze, but leaves it at that. So in winterizing, what do you do, demount the unit? Nonsense. Worse it appears there is no way (other than compressed air) to absolutely completely drain the installed unit too, as water will sit in the bottom small portions of the three copper chambers in which it is heated, their inlets and outlets being above bottom in there. It appears that what small water remains might not be sufficient to allow for freezing damage however. Although Stiebel has been in business forever, the unit is quite modern and microprocessor controlled, extraordinarily compact and well-made; the product literature is peculiarly "undersized" and untechnical aside from the installation requirements of wire size, gpm, this sort of thing. It compares poorly to Takagi in this respect, although Takagi does not make electric units. Missing info: recirculation schematics, ganging these units in commercial use, error code in troubleshooting, high altitude installations and winterizing. Professionally installing the unit is best achieved on Superstrut, as you can then also use Superstrut to attach per code your electrical (in my case three 3/4 flex), your hot and cold connections (using vibra clamps of course) and a nearby new expansion tank sized to the home (4 gal cap). Remember that you must have three separate means of disconnect right at the unit if the supplying electrical panel is out of sight or more than something like 50ft away (I am recalling). Don't skimp in this respect. I used three SquareD 60amp disconnects ($14.00 each). To supply the Stiebel, I used #8 copper THHN, running 24 ft in EMT conduit from the load center to the unit. ... show more
Reviewed in the United States on May 27, 2012 by Peter A. Haan
Working great 5 years later, still going strong
Style: Tempra 29 Plus (Discontinued Model)
We bought and installed this tankless water heater five years ago. Our water bill dropped by at least 20% immediately because of using a tankless. I had big plans to see how it worked for a year and then do an honest review. Time flies! It was fairly simple to install but it sure takes heavy duty wiring to the breaker box. The water heater itself takes up very little room on the wall and is about the size of a medium or large pizza box. When we installed this we had teenagers in the house and haven't run out of hot water yet. I noticed some reviews say 'we don't get instant hot water!' That's because the water that's already in the pipes (waiting for the faucet/shower to be turned on) isn't hot, or it cools off while sitting there. Our living space is on one level with about a 70 foot span from the hot water heater to the kitchen sink. It takes a little bit (I meant to time it but didn't get that done either) for the sitting water to leave the pipes and the hot water to come along behind it...but time after time it gets there, and it's plenty hot. We have the temperature set at 120 degrees. Steibel recommended to flush the unit annually to avoid buildup. It hasn't been flushed (are you shocked?) and there doesn't appear to be any corrosion on it. The inside is really a work of art for us construction loving people, the metal pipes (copper, I believe) make a neat design and I love the idea of not.heating.water.that's.not.being.used.right.then! It's just a waste of money and energy. Highly recommend and have told family and friends about this company and tankless water heaters. ... show more
Reviewed in the United States on August 12, 2018 by denny dee
Great tankless electric water heater!
Style: Tempra 29 Plus (Discontinued Model)
We replaced an Eemax tankless water heater with this one and can't believe the difference. The Eemax was very poorly made and kept breaking. Eemax kept selling us parts for 5 years and then told us it needed replaced. Oh, unfortunatley, it was only warrenteed for 5 years...which they also stated was the life expectancy of an Eemax. We had been told 15-20 years, so we were not pleased. We decided to change brands and after much research, decided on the Stiebel Eltron heater. As soon as we received it, we knew it was much better made. This is made of heavy duty, high quality parts. This does not have replaceable elements, but I suspect we will not need to change them every few months anymore. This has a smooth transition of temperature, so you don't go from cold to scalding hot. These units have an external thermostat where you can set the maximum temperature of the water to avoid accidental scalding. If I'm in the shower and someone turns the bathroom faucet on right next to the shower, I can't even tell a difference in water temperature or pressure. The same is true of taking a shower while running the dishwasher and washing machine...no negative impact on water pressure or temperature. The only drawback is that you have an endless supply of hot water, so if you have someone who loves taking long, long, long, hot showers, they can take even longer, hotter showers with this water heater. I have no complaints at all about this heater. ... show more
Reviewed in the United States on March 5, 2014 by Robin
Don't bother!!!!
Style: Tempra 29 Plus (Discontinued Model)
Before buying this product, I did a ton of research and everywhere I turned, this was the top of the line water heater. I knew there would be quite a bit of time spent prepping for the actual install. First of all, you have to know if you have enough space in your meter or sub panel for the necessary breakers required. I had to do some condensing in my sub panel. I ran the 7 wires of 8 stranded copper and had all the plumbing parts ready. After all the hard work and several hundred dollars of wire, breakers, plumbing parts, I discovered this thing is actually a piece of crap. It works fine if you don't mind spending a ton of money on electricity and not being able to run two showers at the same time. I was taking a shower and when my wife jumped in the spare shower my water went luke warm and didn't recover until she got out. If you plan on using one facet at a time, this is your unit if you don't mind blowing a bunch of time and money. I'm going back to a high efficiency 80 gallon tank heater. Another note, it takes twice as long for the hot water to actually get to the facet. Don't waste your time and money, it simply isn't worth it! ... show more
Reviewed in the United States on February 17, 2013 by Tim
If you are comfortable replacing a circuit breaker
Style: Tempra 29 Plus (Discontinued Model)
We bought this 1 year ago and installed it in our house in mid-New Hampshire. Our house runs on a well, and I was concerned that the cold (40 F) ground water would create a challenge for this water heater. I was wrong. I installed this Stiebel-Eltron Tempra 29 Plus to replace a propane powered water heater that the previous owner had used. Our home was wired for electric heat in the 1970's, so it has a 200a service, and I wanted to avoid fossil fuels. We heat with 2 pellet stoves. We have back-up electric heat as well. I was concerned that the current draw for this unit would cause a problem with many electric appliances running at once. We didn't have a problem, even when we had guests and multiple showers running at once. Plus, the winter of 2013 was quite cold here with some mornings as low as -15F, and still no problems. I would consider myself to have above average handyman skills. I installed this unit myself and had no problems at all. If you are comfortable replacing a circuit breaker, you can install the electrical portion of this, but I caution you, if you aren't 100% confident, then hire a professional, because working near the bus in the breaker box can be dangerous, and 200a could probably cook you like a hot dog if your screwdriver slips. I have several years of experience working for an electrical contractor during the summers when I was a teen, so I felt comfortable taking on this project. I used shark bite fittings to plumb this unit. I got 2 valves to shut it off so it can be cleaned/flushed annually and I used 2 braided stainless steel connections to hook into the unit directly. I found these fittings on the shelf at Home depot. I also got the 8/2 wire at Home Depot. Total cost to install myself was ~$100 for wire (125 ft), ~$30 for 3 50a breakers, ~$60 for all sharkbite fittings. I had some other misc items on hand (screws, wire straps, tools, etc). My impressions of this unit over the year we have had it are very positive. There are some quirks, because this is not the type of system most of us are accustomed to as Americans. Contrary to the experience of another reviewer, I notice a slight, but noticeable increase in the temperature of the water when I'm in the shower and another tap is opened. It is not enough to scald, but it is occasionally uncomfortable. There is also a minor dimming of the lights when the water heater comes on. It does draw a lot of current, but not 150 amps. We have it set at 106F, which is the temperature I prefer in the shower. I can have the electric oven and range on, the microwave on, lights on around the house, the stoves going, and fill a pot with hot water in the kitchen. You won't have problems hosting guests. My inlaws were concerned that we weren't running the water hot enough to kill germs in the dishwasher and the clothes washer. I say hogwash. I haven't gotten sick more often or noticed dirtier dishes or clothes. The water at their house burns my hands straight out of the faucet. My monthly electric bill with 2 people living in the house is somewhere around $100. It went as high as $150. last winter with stoves and humidifiers going, and as low as $80 this summer with no AC running. I don't have previous bills to compare to since we installed this water heater as soon as we moved in. As always, YMMV, but I have been very pleased with this water heater. I probably could have gotten away with the unit one size down (tempra 24), but I like to do it once and do it right. The endless hot water and excellent efficiency are wonderful benefits, and we've had no significant drawbacks. If we ever move, I'll get one of these for our new house. ... show more
Reviewed in the United States on October 14, 2014 by J. Monroe
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