Brand |
Stiebel Eltron |
---|---|
Product Dimensions |
16.63"W x 14.5"H |
Special Feature |
LED Display |
Color |
White |
Wattage |
18000 watts |
Voltage |
240 Volts |
Manufacturer |
Stiebel Eltron |
Part Number |
20 Plus |
Item Weight |
20.1 pounds |
Country of Origin |
Germany |
Item model number |
20 Plus |
Pattern |
Water Heater |
Installation Method |
Mounting |
Item Package Quantity |
1 |
Number of Handles |
1 |
Special Features |
LED Display |
Batteries Required? |
No |
ASIN |
B07GYYXXF8 |
Customer Reviews |
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Best Sellers Rank |
#9,681 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #7 in Water Heaters |
Date First Available |
August 30, 2018 |
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Zak –
We recently installed this tankless heater at my mother’s house and it is replacing the exact same model that was installed almost 14 years ago. The new unit works well and is adequate to supply her 4 bathrooms at the same time. Installation is easy if you know basic electric and plumbing and already have 3 legs of 50 amp power running to the unit. We had a small issue with the temp adjustment knob but a quick call to their tech support and they provided me with some suggestions that ultimately resolved the issue. So far we are happy with the device and hope to get many years out of it. This is a well established company with a good quality product.
E L McCrory –
Installed June 2022INSTALL NOTE – I am not a plumber and this stretched my mechanical DIY-er mentality, but I did install this on my own: be careful if you choose to install this on your own. I chose NOT to do the electrical upgrade required on my own – the risk of not getting that right was too high, so I paid my electrical contractor to upgrade the box for the 3 x 50 amp breakers – NO REGRETS!I knew my 55 gal standard electric water heater was not going to last much longer due to the units age AND the fact our local city water is awful with calcium and build up. I researched the available setups and units ad nauseum, and went with this unit: the brand recognition and reputation, the size due to our house and expectation that we will eventually sell it. When I bought this unit, it was one of the larger of its type and was actually cheaper than if I went with a standard water heater to match the one I was getting rid of.First, the drop in electric usage has about paid for 50% of the unit cost over the last year – yeah, THAT MUCH! Results will vary I am sure, but its just my wife and I in 2200 sq ft house, so the fact it runs “on demand” just makes sense. Another way to measure savings: I am all electric in this house and during extreme seasonal weather I could easily see a monthly electric bill $250-300, using either my heat pump or my additional heat source in the house. I have yet to see a monthly bill above $180 (Ohio weather from summer 90s down into the single digits in the winter).The temp control is amazingly simply – we found 115 works fine and can take a long hot shower. But I can walk out and dial it up or down if I chose.The install (outside of the electric) was not too bad. I have PEX plumbing in my house, so it was a no-brainer to use that with the majority of this project. I spent the money to buy heavy brass shot off valves (probably overkill) for the IN/OUT inlets on this unit. It will make a difference if I ever have to repair or replace the unit: I can easily isolate the unit from the flow of water.Assuming we will move in the future, I will be looking for a house that either has a tankless or can be upgraded to tankless: its a great decision and works amazing.
John P. EndsleyJohn P. Endsley –
This will be my 3rd Tankless water heater. All have been OK to wonderful. This unit is the best. It was easy to install the Hardware has had major improvements, and its interface is way faster than just 14 years ago. In 2007 i bought the Tempra 24 This unit gave me 9 years of hot water in a room 1.5 bath house. Till a major storm killed it and every appliance in my house. I replaced it with the Ecosmart 27 and that unit works till this very day. I sold that house last year an i have been missing the unlimited hot water ever since. I now own a 4 bedroom 3 bathroom house built in 1905. Its been a remolding money pit, but the water heater was just fine. 50 gal electric. well last week i changed it. It took 300ft of Romex 8-2, 3 40 amp breakers, 8′ red 1/2pex and 8’blue 1/2 pex with many fittings and a filters to protect the unit for lime and rust. In the time it has had a round the clock test of 110f to 120f and tested up to 140f yes it does that just fine if you like burns… the real testing is having kids and family getting real usage out of it. having a person in the both showers and washing close at the same time. Yet never running out of water. The controls tell you how much power you have used the tem of the out flow and how much you saved over a tanked unit. With 98% efficacy and not heating water 24/7 i love the cost savings.The only cons is the need for a min power inlet of 200 amps. I have a LARGE house that has had the electrical upgraded. It has 2 400Amp boxes and meters. so i had room in the power panel for 3X 40amp breakers. The other this is the inspection if you live in a city that requires it for fixture replacement my city dose not as long as an electrician signs off on it. The problem is mast old houses in the south only have 100amp service so check with the pro fist. good luck and IM going to take a 1 hours shower.. lol.
MelMel –
These work great. Nice continuous hot water! Also, really save you a lot of space.
Jessica Raines –
I understand how this install can get very expensive for people. We had help from a licensed electrician friend which saved us a ton. All in all install was under $500 after purchasing pipes, valves, breakers, wire, and conduit. Took about 6 hours, due to an extra trip to town for supplies. Hot water worked immediately. We did install a filter in front of the hot water heater to help reduce scale build up. The filter affected water pressure minimally. We have a 2000 Sqft house and a 200 amp electrical box. I have had no cold water sandwich problems. It does take a but for the water to heat up but this is a con I can live with for unlimited hot water. We’ve been using it for about a month now and I’m very happy with our purchase.
Ken IKen I –
Our 20 year old water heater finally quit. The wife always wanted to replace the old one with a tankless as it was installed in our master closet. It took up valuable space as there is Never enough room for her clothes and shoes.lol.Read the review and decided to order this oneReplacement is fairly easy for a skilled DIYer. Unit is light and easy to install on the wall. Unfortunately the unit isn’t set up for USA house stud layout as the mounting holes are 15″ on center. I ran wood screws into studs on one side and used drywall anchors on the other. That was sufficient to securely mount .Plumbing is straight forward. I replaced flex lines with PEX and insulated the hot sided. Though I don’t think it’s really needed.Electrical can be a little complicated and you really need to take a look at your main or sub panel that powers the water heater. The old tank heater only needed one 220 volt 30 amp breaker circuit to run.This unit needs 3 separate 220 40 amp circuits to run. This means you need 2 more 220 volt spaces in the breaker box to add those lines. If you don’t. You’ll need to install a sub box to run.I’m not comfortable with electricity so I hired a professional electrician to properly wire. He had to run 2 new lines and drill through walls to get them from box to heater. It was a task I gladly paid for. That did cost $1200. Seemed a little high but that seems the going rate here in central Texas.Usage. I first set it at the 119 degree setting. Temp was. Ok but I would have to run my show only with the hot side running. It was warm but not super hot. So I turned it up to 125 and definitely had to add cold water to the shower. I finally cranked the thermostat all the way up and can now shower using 50/50 hot to cold water for the perfect shower temp.Since this is an on demand hot water heater expect a minute or so for the hot water to reach your tap if you haven’t used In a while or first thing in the am.After that.. it stays hit for ever and I haven’t had it run cold.Hope this helps. We are really happy to get this water heater.Now time to install more shelves and closet rods so my wife stops using my area for her clothes. Lol
Michael Place –
there is no natural gas on our block and so we decided to go full electric tankless, hoping it would be enough for our 3 bedroom, 2.5 bathroom home. We love it when it comes to showers, appliances, kitchen and bathroom faucets. Life is uninterrupted on those fronts and we’re very happy with the unit.The two problems we’ve encountered are that our bathtub pressure went down quite a bit and with 2 messy kids we thought that was going to be a problem. We learned that if you turn the max temp down to 110 (we had it set to 125 at first) then there is more capacity at a very hot and comfortable temp. That helped split the difference on bathtub pressure. The other is that if you are running a bath, you will see a big decrease in pressure in the other hot water faucets in the house.So the adjustment was to not try to shower or do dishes while running a bath which is no big deal. And we don’t take two showers in different bathrooms at the same time.Otherwise, the unit is incredible. We are saving money on electricity each month since a tank has to stay hot 24/7 while this unit is only on when you turn on a hot water faucet or run an appliance. And there is great pressure and heat for all of our daily tasks under normal circumstances. Ultimately, the shower is great and we can do dishes and run appliances without a hitch.I would recommend purchasing this unit if you are ready for a minor quality of life adjustment for the energy and space benefits.
Alan King –
For five years I’ve lived in this home with a 75 gallon gas hot water heater. It was in the house when I moved in and to be honest I’ve never had any complaints.Though it worked fine I decided to change out and because we are going solar roof next year I wanted to go electric. For the same reason we had gone gas furnace to electric heat pump for heating. I needed to decide whether to go electric tankless or electric heat-pump water heater.I went with this unit, the 29kw size. There are only two of us in the house so it seemed more prudent. We have several EVs and the largest tankless along with EV charging would be a fairly large load even for 200 amp service.First the upsides:1. Unlimited hot water. Both of us can take showers at the same time. The only issue that two of us can have is if both of us want showers while the first cycle of the clothes washing machine is running. Minor limitation. Timing is everything.2. Absolutely using no power when we aren’t using water. We can go away for a month, walk in the door and take a shower and get instant hot water.3. Accurate temperature control. We have two presets and one has been set for filling the soaking tub. Just press the button and then run pure hot water to fill the tub. The tub gets filled to perfection without figuring out the calculus of the mixing valve which changes depending on the temperature of the water coming into the house. This is a great feature that nobody told me about.4. The house was originally built with what I consider a shortcoming. The hot water heater was located next to the furnace so it could use the same flue and gas connection. This is fine for ease of install but the hot water heater is on the other side of the house from where the hot water is most often used. Running the shower in the master bath or the sink in the kitchen required a full minute of water running to get hot water. We now installed the tankless beneath the kitchen where we use the water. No flue is required. This unit goes anywhere. Now we have hot water in a hurry where we use it.The downside. I once had a power failure that lasted several days. The water heater was the same as I replaced – used no electricity and vented naturally through a flue. There is something nice about a hot shower during a power failure. That will no longer an option. But then, I haven’t lost power in five years.The only upside of the tankless heat-pump water heater would have been its (limited) supply of hot water during a power failure and its natural de-humidification feature. With everything considered, we went tankless.Just a tip, the most often warning I’ve heard with tankless is impurities in the water that can collect. To reduce this problem we installed a whole-house water filtration system after the water-softener and ahead of the heater.Note that I only gave tech support three stars – that is because I didn’t need them so never found out about their quality.I did need power though and didn’t have the required six circuit breakers that the unit required. I installed a 125 amp sub panel dedicated to the water heater.The unit has been flawless. It just works.
Amazon CustomerAmazon Customer –
We have really been enjoying our new hot water heater! We could barely get through a shower with our old electric 40 gallon tank. And then we’d have to wait a minimum of two hours to take another shower. Our girls could only have a quarter of the bathtub full and we were heating pots of water on the stove for them! The only downside to the tankless is there’s a slightly longer wait time to get hot water and it takes 1 gallon per minute flow to activate the heater so if you’re doing dishes, you have to keep it cranked all the way open. We are still learning and adjusting, but to have unlimited hot water Makes up for all of the downside! The location I installed this in the basement utility room is about 40 foot from the electrical panel so I will say the three runs of wire cost almost as much as the heater! Copper is ridiculous these days. I did install everything myself.
Phil in Magnolia –
I have two tankless water heaters in my 15 year old home, both of which were manufactured by Bosch. One of them recently stopped heating, and the other is working intermittently. I’ve replaced one so far with this Stiebel Eltron unit, and I have a second on order to replace the other.Replacement in my home was very easy since I already had the necessary plumbing and electrical supply in place. I selected this Tempra 29 Plus model largely because it requires the same electric supply as I already had in place (3 x 40 amp). It was a simple swap-out, taking only a couple of hours total.Operation is simplicity itself – the front panel displays the set temperature, and the dial control allows the temperature to be adjusted easily. I initially started at 120 F, reduced to 110 F after deciding that was a bit too hot for our kitchen and utility room use, and have now bumped it back to 115 F which seems to be a good temperature for our needs in that part of the house. (The second unit will service the other side of the house with our two bathrooms, and we may want to set the temperature differently there once we see what works best for providing comfortable hot showers).The quality of build is excellent, and I’m hopeful that “Made in Germany” will mean that it will be long lasting and reliable over time.I also have contacted Stiebel Eltron customer service once, calling them with a question regarding the setup of the unit. I was very quickly speaking to an actual knowledgeable person in their tech support group, who was helpful and considerate.