Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
On paper, the Stiebel Eltron Tempra 15 Trend gets the important things right: a compact 14.4 kW element and a 7-year warranty. It suits a sink that takes forever to run hot, 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 | 14.4 kW |
| Stated voltage | 240 V |
| Temperature range | 68 to 140 °F |
| Total current | 100 A |
| Stated warranty | 7 years |
| ASIN | B07GZ1WK29 |
Full listing title: Stiebel Eltron Tempra 15 Trend Electric Tankless Water Heater, 14.4kW, 240V
| Fuel | ElectricFull listing title |
|---|---|
| Stated heating power | 14.4kWFull listing title |
| Stated voltage | 240VFull listing title |
Rated from the listing's specs, no buyer reviews yet
What it's made for: a sink that takes forever to run hot.
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 that's about 60 A. On our calculator's maths it gives about 2.3 GPM of 105 °F water when the tap water comes in at 62 °F, and less in winter. Enough for a kitchen or a bathroom sink.
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.
One sink: about 2.3 GPM of 105 °F water with 62 °F tap water, on our calculator's maths. That covers a kitchen or a bathroom sink.
A shower: on paper, with warm tap water, just about (a shower takes about 2 GPM). In January it falls short.
What the Stiebel Eltron Tempra 15 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 15 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 $34.03 (price ÷ stated kW, our arithmetic). That puts it in the pricier third of the 17 point-of-use heaters we have a price and a stated power for.
Count a plumber's visit and, unless it plugs in, an electrician for the circuit.
The button opens the exact listing (ASIN B07GZ1WK29), where today's price, stock and seller apply. Sizes and variants of the same family often sit at different prices.
Want the shower covered too? The Rheem 18 kW Electric, 240V (9.3/10) is an 18 kW whole-house unit.
Want it to draw only what it needs? The ThermoMate 14 kW Electric, 240V (7.9/10) is self-modulating, per its listing.
Want to spend less? The ORBEK 14 kW Electric, 240V (7.7/10) was listed at $189.99 on Sep 30, 2026.
Our take
Our favourite thing about the Stiebel Eltron Tempra 15 Trend is a compact 14.4 kW element, closely followed by a 7-year warranty. No buyer reviews yet, so the Stiebel Eltron Tempra 15 Trend has to win you over on paper. Honestly, the catch: no word on the flow. We'd pick it if the kitchen or the powder-room sink takes forever to run hot; otherwise, put it next to the EcoSmart ECOS 12 (12 kW 240V) first.
the unit on the wall next to the old tank's spot, water in and out. Under a sink or on the wall beside it, close to the tap it feeds.
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, 14.4 kW gives about 1.6 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.
Before the Stiebel Eltron Tempra 15 Trend goes in your cart, check the tap it will feed: 14.4 kW suits one sink or a low-flow shower.
14.4 kW warms one sink or one low-flow shower, not two. Decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off.
It runs on 240 V. At 240 V it needs a dedicated circuit; an electrician confirms the breaker and the wire.
Small units need a minimum flow to switch on. Ask the seller for that figure if you have low-flow aerators.
Electric units scale too, mostly at the inlet screen and the element. Our flushing and descaling guide covers the routine.
How the Stiebel Eltron Tempra 15 Trend stacks up against the closest alternative, the EcoSmart ECOS 12 (12 kW 240V).
| Criterion | Stiebel Eltron Tempra 15 Trend | EcoSmart ECOS 12, 12 kW 240V |
|---|---|---|
| Our rating | 7.4/10 | 7.5/10 |
| Heating power | 14.4 kW | 12 kW |
| Max flow | Not stated | 2.9 GPM |
| Warranty | 7 years | Not stated |
Pick the EcoSmart ECOS 12 (12 kW 240V) if you want our higher-rated option (7.5/10), with more stated flow (2.9 GPM); stay with the Stiebel Eltron Tempra 15 Trend for more power (14.4 kW) and a longer stated warranty (7 years).
We rate it 7.4/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing states a heating power of 14.4 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 14.4 kW. At 240 V, that is roughly 60 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Its listing states 14.4 kW for one tap 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.
Which tap: 14.4 kW warms one sink or one low-flow shower, not two. Decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off. Power: it runs on 240 V. At 240 V it needs a dedicated circuit; an electrician confirms the breaker and the wire. Activation flow: small units need a minimum flow to switch on. Ask the seller for that figure if you have low-flow aerators. Scale: electric units scale too, mostly at the inlet screen and the element. 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, read line by line and weighed with our published formula.