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Written from the listing and 50 buyer reviews, not from our own use · How we rate
We like the Stiebel Eltron Tempra 36 Trend for the mix: 36 kW of heating power and a 7-year warranty. It suits a home without gas and with a big panel, and its sibling listing, the Stiebel Eltron Tempra 29 Plus, holds #3 in our whole-house electric tankless water heater ranking.
These are sold as variants of one listing family. Each variant has its own page.
| Brand | Stiebel Eltron |
|---|---|
| Category | Electric tankless water heaters |
| Fuel | Electric |
| Stated heating power | 36 kW |
| Stated voltage | 240 V |
| Temperature range | 68 to 140 °F |
| Stated warranty | 7 years |
| Buyer reviews | 50 · 4.1/5 |
| ASIN | B07GZ33DKP |
Full listing title: Stiebel Eltron Tempra 36 Trend Electric Tankless Water Heater, 36kW, 240V
| Fuel | ElectricFull listing title |
|---|---|
| Stated heating power | 36kWFull listing title |
| Stated voltage | 240VFull listing title |
Not in our top-5 rankings
What it's made for: a home without gas and with a big panel.
Two electric tankless heaters of about the same power, closest to it on our rating, each with a dated price.
The heating power the listing states. At 240 V it draws about 150 A. Show that to your electrician first. Whether your panel has the room is the whole question, and the shower comes second.
What it has going for it
68 to 140 °F. The setpoint range per the listing. Above 120 °F at the tap is scalding territory for kids, so most homes set it lower.
7-year warranty. 7 years, per the listing. Read what it needs from you: many makers ask for a licensed install and regular flushing to keep it valid.
Warm tap water: where it comes in around 62 °F (much of the South), 36 kW gives about 5.7 GPM of 105 °F water on our calculator's maths. That's two 2 GPM showers at once.
A cold January: where it comes in at 42 °F, it's about 3.9 GPM, one 2 GPM shower at a time. Up north, that's the figure to size against, and it's why the honest answer is sometimes a second unit or gas.
What the Stiebel Eltron Tempra 36 Trend listing names:
Warranty & support: 7-year warranty, as stated in the listing.
That is the maker's promise, not ours. Keep the invoice, register the Stiebel Eltron Tempra 36 Trend if the maker asks, and read the install conditions: many tankless warranties need a licensed install and regular flushing.
The installation manual has the last word on breakers and wire size; show it to your electrician before you order.
At the price on Sep 30, 2026, each kW of stated heating power works out at about $20.81 (price ÷ stated kW, our arithmetic). That puts it around the middle of the 27 whole-house electric tankless heaters we have a price and a stated power for.
Budget for the electrician as well: new double-pole breakers, thick wire from the panel and, if the panel is full, an upgrade.
The button opens the exact listing (ASIN B07GZ33DKP), where today's price, stock and seller apply. Sizes and variants of the same family often sit at different prices.
Panel short on spare amps? The Rheem 18 kW Electric, 240V (9.3/10) is rated 18 kW, about 75 A at 240 V.
Only one sink far from the heater? The ThermoMate 14 kW Electric, 240V (7.9/10) is a 14 kW point-of-use unit.
Want it to draw only what it needs? The WINTEMP WN-36kW Electric, 240V (8.1/10) is self-modulating, per its listing.
Our take
We like the Stiebel Eltron Tempra 36 Trend for 36 kW of heating power and a 7-year warranty. Only 50 buyers have rated it so far (4.1/5), so treat the score as an early read. The catch with this Stiebel Eltron electric tankless heater: their 4.1/5 average sits under the 4.3 of our ranked picks. We'd pick it if your house has no gas and a 200 A panel with room to spare; otherwise, put it next to the CAMPLUX 27 kW Electric (240V) first.
New breakers, the unit on the wall next to the old tank's spot, water in and out. An electrician does the panel side.
Hot in a few seconds once the water in the pipes has passed. Set it between 68 and 140 °F.
With 42 °F water coming in, 36 kW gives about 3.9 GPM at 105 °F on our calculator's maths. Low-flow shower heads stretch that further.
Clean the inlet screen and flush out scale on hard water. Our flushing and descaling guide has the routine.
Buyers give it 4.1/5, a decent record, slightly below our ranked picks' 4.3 average. 50 reviews is still a modest pile, so a handful of new ones can move it.
Before the Stiebel Eltron Tempra 36 Trend goes in your cart, check your panel: 36 kW at 240 V is roughly 150 A, so an electrician should look at the panel first.
Take a photo of the panel label (main breaker size and free slots) and send it to the electrician with the listing. Our electrical requirements guide explains what they will look for.
On our calculator's maths, 36 kW gives about 3.9 GPM with 42 °F winter water and 5.7 GPM with 62 °F water. Our flow-rate calculator does it for your region.
Hardwired 240 V work needs a licensed electrician and often a permit. Our install cost guide shows what usually ends up on the quote.
Hard water still builds up on the elements and the inlet screen. Our flushing and descaling guide covers the routine.
How the Stiebel Eltron Tempra 36 Trend stacks up against the closest alternative, the CAMPLUX 27 kW Electric (240V).
| Criterion | Stiebel Eltron Tempra 36 Trend | CAMPLUX 27 kW Electric, 240V |
|---|---|---|
| Our rating | 6.9/10 | 7.2/10 |
| Heating power | 36 kW | 27 kW |
| Self-modulating | Not stated | Stated |
| Warranty | 7 years | Not stated |
| Buyer reviews | 50 · 4.1/5 | 141 · 4.3/5 |
Pick the CAMPLUX 27 kW Electric (240V) if you want our higher-rated option (7.2/10), with self-modulating power and a higher buyer rating (4.3/5); stay with the Stiebel Eltron Tempra 36 Trend for more power (36 kW) and a longer stated warranty (7 years).
We rate it 6.9/10 (good). It is based on 50 buyer reviews averaging 4.1/5 and the specifications stated in the listing.
The listing states a heating power of 36 kW on 240 V. The headline flow is a mild-weather number: with cold winter water coming in, the same unit gives you less. Read the maker's flow chart at your winter rise, or let our flow-rate calculator do the sums.
The listing states 240 V and 36 kW. At 240 V, that is roughly 150 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Its listing states 36 kW of heating power and a 7-year warranty. These are the seller's figures, not our measurements: how steady the temperature is in your shower and how it copes with your winter water can't be read from a listing.
Your panel: take a photo of the panel label (main breaker size and free slots) and send it to the electrician with the listing. Our electrical requirements guide explains what they will look for. Your winter flow: on our calculator's maths, 36 kW gives about 3.9 GPM with 42 °F winter water and 5.7 GPM with 62 °F water. Our flow-rate calculator does it for your region. The install: hardwired 240 V work needs a licensed electrician and often a permit. Our install cost guide shows what usually ends up on the quote. Scale: hard water still builds up on the elements and the inlet screen. Our flushing and descaling guide covers the routine.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing and 50 buyer reviews, read line by line and weighed with our published formula.