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Written from the listing's specs, not from our own use · How we rate
A compact 12 kW element and an element that only draws what it needs: the Stiebel Eltron DHX 12-2 Trend (12 kW) covers what matters most in a point-of-use heater. It is a good match for a booster under the sink of a far-off bathroom, at 6.8/10 on its documented specs.
| Brand | Stiebel Eltron |
|---|---|
| Category | Electric tankless water heaters |
| Fuel | Electric |
| Stated heating power | 12 kW |
| Stated voltage | 240 V |
| ASIN | B09394DVP5 |
Full listing title: Stiebel Eltron DHX 12-2 Trend POU Electric Tankless Water Heater 12kW 240V
| Fuel | ElectricFull listing title |
|---|---|
| Stated heating power | 12kWFull listing title |
| Stated voltage | 240VFull listing title |
Rated from the listing's specs, no buyer reviews yet
What it's made for: a booster under the sink of a far-off bathroom.
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 50 A. On our calculator's maths it gives about 1.9 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
Self-modulating. It draws only the power the flow and the setpoint need, instead of slamming every element on. Steadier temperature, and no wasted amps on a summer afternoon.
One sink: about 1.9 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 DHX 12-2 Trend (12 kW) listing names:
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 $22.18 (price ÷ stated kW, our arithmetic). That puts it in the cheaper third of the 17 point-of-use heaters we have a price and a stated power for.
Add the circuit to the budget if it doesn't plug in, and an hour of plumbing under the sink.
The button opens the exact listing (ASIN B09394DVP5), where today's price, stock and seller apply.
Want the shower covered too? The Rheem 18 kW Electric, 240V (9.3/10) is an 18 kW whole-house unit.
Our take
Our favourite thing about the Stiebel Eltron DHX 12-2 Trend (12 kW) is a compact 12 kW element, closely followed by an element that only draws what it needs. No buyer reviews yet, so the Stiebel Eltron DHX 12-2 Trend (12 kW) has to win you over on paper. Where it falls short: no word on the breakers it needs or 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 SIVUATEK 14 kW Electric (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, and the power steps up and down with the flow (self-modulating, per the listing). Set it, then leave it.
With 42 °F water coming in, 12 kW gives about 1.3 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 you order the Stiebel Eltron DHX 12-2 Trend (12 kW), check the tap it will feed: 12 kW suits one sink or a low-flow shower.
12 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 DHX 12-2 Trend (12 kW) stacks up against the closest alternative, the SIVUATEK 14 kW Electric (240V).
| Criterion | Stiebel Eltron DHX 12-2 Trend, 12 kW | SIVUATEK 14 kW Electric, 240V |
|---|---|---|
| Our rating | 6.8/10 | 6.9/10 |
| Heating power | 12 kW | 14 kW |
| Breakers | Not stated | 1 × 60 A |
| Self-modulating | Stated | Not stated |
Pick the SIVUATEK 14 kW Electric (240V) if you want our higher-rated option (6.9/10), with more power (14 kW); stay with the Stiebel Eltron DHX 12-2 Trend (12 kW) for self-modulating power.
We rate it 6.8/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing states a heating power of 12 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 12 kW. At 240 V, that is roughly 50 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Its listing states 12 kW for one tap and self-modulating power. 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: 12 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.