Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
The Stiebel Eltron DHX 8-2 Trend (7.2 kW) ticks most of the boxes we care about: 7.2 kW for one tap and self-modulating power. Think of it for a sink that takes forever to run hot: 6.8/10 on what its listing documents.
| Brand | Stiebel Eltron |
|---|---|
| Category | Electric tankless water heaters |
| Fuel | Electric |
| Stated heating power | 7.2 kW |
| Stated voltage | 240 V |
| ASIN | B09393M76S |
Full listing title: Stiebel Eltron DHX 8-2 Trend POU Electric Tankless Water Heater 7.2kW 240V
| Fuel | ElectricFull listing title |
|---|---|
| Stated heating power | 7.2kWFull 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 30 A. On our calculator's maths it gives about 1.1 GPM of 105 °F water when the tap water comes in at 62 °F, and less in winter. That's a hand-wash sink with a low-flow aerator, not a kitchen tap.
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 1.1 GPM of 105 °F water with 62 °F tap water, on our calculator's maths. That's a hand-wash sink with a low-flow aerator.
A shower: no. A shower takes about 2 GPM, and 7.2 kW gives about 1.1 on a warm day.
What the Stiebel Eltron DHX 8-2 Trend (7.2 kW) listing names:
Breakers and wire gauge are in the installation manual, and it overrides anything above; your electrician reads it first.
At the price on Sep 30, 2026, each kW of stated heating power works out at about $36.81 (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 B09393M76S), 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.
A kitchen sink, not a hand basin? The ThermoMate 14 kW Electric, 240V (7.9/10) is rated 14 kW.
Our take
The Stiebel Eltron DHX 8-2 Trend (7.2 kW) earns its place with 7.2 kW for one tap and self-modulating power. No buyer reviews yet, so this Stiebel Eltron point-of-use heater has to win you over on paper. The catch with the Stiebel Eltron: 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 Stiebel Eltron DHX 12-2 Trend (12 kW) 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, 7.2 kW gives about 0.8 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 8-2 Trend (7.2 kW), check the tap it will feed: 7.2 kW suits one sink or a low-flow shower.
7.2 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 8-2 Trend (7.2 kW) stacks up against the closest alternative, the Stiebel Eltron DHX 12-2 Trend (12 kW).
| Criterion | Stiebel Eltron DHX 8-2 Trend, 7.2 kW | Stiebel Eltron DHX 12-2 Trend, 12 kW |
|---|---|---|
| Our rating | 6.8/10 | 6.8/10 |
| Heating power | 7.2 kW | 12 kW |
| Voltage | 240 V | 240 V |
| Self-modulating | Stated | Stated |
Both score 6.8/10. The Stiebel Eltron DHX 12-2 Trend (12 kW) adds more power (12 kW).
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 7.2 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 7.2 kW. At 240 V, that is roughly 30 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Its listing states 7.2 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: 7.2 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.