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Stiebel Eltron Tempra 29 Trend Review

Name: Stiebel Eltron Tempra 29 Trend
Brand: Stiebel Eltron
SKU: B07GYZ9MM2

7.0Good · out of 10Not in our top-5 rankings

Written from the listing and 98 buyer reviews, not from our own use · How we rate

On paper, the Stiebel Eltron Tempra 29 Trend gets the important things right: 28.8 kW at 240 V and a 7-year warranty. It suits a whole house on electric in a warm or mild climate, and its sibling listing, the Stiebel Eltron Tempra 29 Plus, holds #3 in our whole-house electric tankless water heater ranking.

Variants of this model

These are sold as variants of one listing family. Each variant has its own page.

Stiebel Eltron Tempra 29 Plus · 29 (kW) / Tempra Plus · 7.9/10
Stiebel Eltron Tempra 15 Trend · 15 (kW) / Tempra Trend · 7.4/10
Stiebel Eltron Tempra 24 Trend · 24 (kW) / Tempra Trend · 7.2/10
Stiebel Eltron Tempra 20 Trend · 20 (kW) / Tempra Trend · 7.0/10
Stiebel Eltron Tempra 36 Trend · 36 (kW) / Tempra Trend · 6.9/10

Price$639.99Price on Sep 30, 2026 · may have changed

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

Compare side by side ↗

Specifications

Brand	Stiebel Eltron
Category	Electric tankless water heaters
Fuel	Electric
Stated heating power	28.8 kW
Stated voltage	240 V
Temperature range	68 to 140 °F
Total current	200 A
Stated warranty	7 years
Buyer reviews	98 · 4.1/5
ASIN	B07GYZ9MM2

Full listing title: Stiebel Eltron Tempra 29 Trend Electric Tankless Water Heater, 28.8kW, 240V

Listing evidence

Fuel	Electric Full listing title
Stated heating power	28.8kW Full listing title
Stated voltage	240V Full listing title

Updated October 2026

Exact listing, ASIN B07GYZ9MM2

Rating from a published formula

Compared with its closest rivals

Two electric tankless heaters of about the same power, closest to it on our rating, each with a dated price.

Compare side by side ↗

Stiebel Eltron Tempra 29 Trend

7.0Good · out of 10$639.99 Price on Sep 30, 2026 · may have changed

Stated: 28.8 kW · 240 V
98 buyer reviews
Electric tankless water heaters

This product ↑

VEVOR 36 kW Electric, 240V

6.9Good · out of 10$318.88 Price on Sep 30, 2026 · may have changed

Stated: 36 kW · 240 V
4 buyer reviews
Electric tankless water heaters

See the review ↗

CAMPLUX 27 kW Electric, 240V

7.2Good · out of 10$302.62 Price on Sep 30, 2026 · may have changed

Stated: 27 kW · 240 V
141 buyer reviews
Electric tankless water heaters

See the review ↗

28.8 kW at 240 V

The heating power the listing states. At 240 V it draws about 120 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

What changes in the morning shower rush

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 or a cold January?

Warm tap water: where it comes in around 62 °F (much of the South), 28.8 kW gives about 4.6 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 3.1 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.

Great for you if…

Your house has no gas and a 200 A panel with room to spare
You want a long warranty: 7 years are stated

Skip it if…

You want self-modulating power: the listing doesn't say it modulates
Your panel is 100 A or already busy: 28.8 kW at 240 V is about 120 A on its own
Star ratings come first for you: 4.1/5 is below the 4.3 average of our ranked picks

Power, wiring and what's in the box

What the Stiebel Eltron Tempra 29 Trend listing names:

28.8 kW
240 V
200 A total draw
68 to 140 °F setpoint
Digital display

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 29 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.

Price and cost per kW

$639.99 Price on Sep 30, 2026 · may have changed

At the price on Sep 30, 2026, each kW of stated heating power works out at about $22.22 (price ÷ stated kW, our arithmetic). That puts it in the pricier third 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 B07GYZ9MM2), where today's price, stock and seller apply. Sizes and variants of the same family often sit at different prices.

A better fit for your house and panel?

Colder tap water where you live? The WINTEMP WN-36kW Electric, 240V (8.1/10) is rated 36 kW.

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.

Our take

The verdict

Our favourite thing about the Stiebel Eltron Tempra 29 Trend is 28.8 kW at 240 V, closely followed by a 7-year warranty. Only 98 buyers have rated it so far (4.1/5), so treat the score as an early read. Honestly, the catch: 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.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonAll electric tankless water heaters →

Living with it

Install day

New breakers, the unit on the wall next to the old tank's spot, water in and out. An electrician does the panel side.

The first shower

Hot in a few seconds once the water in the pipes has passed. Set it between 68 and 140 °F.

The first winter

With 42 °F water coming in, 28.8 kW gives about 3.1 GPM at 105 °F on our calculator's maths. Low-flow shower heads stretch that further.

Upkeep

Clean the inlet screen and flush out scale on hard water. Our flushing and descaling guide has the routine.

What buyers say

Buyers give it 4.1/5, a decent record, slightly below our ranked picks' 4.3 average. 98 reviews is still a modest pile, so a handful of new ones can move it.

The numbers

Buyer rating: 4.1/5
Reviews: 98
Ranked picks' average: 4.3/5

The one thing we'd check first

Before the Stiebel Eltron Tempra 29 Trend goes in your cart, check your panel: it draws 200 A, so an electrician should look at the panel first.

Before you buy

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, 28.8 kW gives about 3.1 GPM with 42 °F winter water and 4.6 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.

How it compares

How the Stiebel Eltron Tempra 29 Trend stacks up against the closest alternative, the CAMPLUX 27 kW Electric (240V).

Criterion	Stiebel Eltron Tempra 29 Trend	CAMPLUX 27 kW Electric, 240V
Our rating	7.0/10	7.2/10
Heating power	28.8 kW	27 kW
Breakers	200 A total	Not stated
Self-modulating	Not stated	Stated
Warranty	7 years	Not stated
Buyer reviews	98 · 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 29 Trend for more power (28.8 kW) and a longer stated warranty (7 years).

Compare side by side ↗See the CAMPLUX 27 kW Electric, 240V review →

The score in detail

How we rated it

Our score: 7.0/10

Buyer rating (45%)

36.9 / 45

4.1/5 average

Review volume (35%)

18.9 / 35

98 buyer reviews

Documented specifications (20%)

13.8 / 20

69/100 listing documentation score

Our rating is an evidence index on a 0–10 scale. It is not a buyer star rating, and we have not used the product ourselves.

Buyer rating (45%): the captured average shown on this variant's own listing page (not shared with the other Stiebel Eltron Tempra variants), damped when there are fewer than 50 reviews.
Review volume (35%): more reviews mean more reliable evidence, on a logarithmic scale up to 5,000 reviews.
Documented specifications (20%): how completely the exact listing documents the attributes that matter.

Our editors then look at how it compares with the other heaters we rate. A commission is never an input to the rating. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the Stiebel Eltron Tempra 29 Trend any good?

We rate it 7.0/10 (good). It is based on 98 buyer reviews averaging 4.1/5 and the specifications stated in the listing.

How much hot water can the Stiebel Eltron Tempra 29 Trend deliver?

The listing states a heating power of 28.8 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.

What electrical service does the Stiebel Eltron Tempra 29 Trend need?

The listing states 240 V and 28.8 kW. At 240 V, that is roughly 120 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.

What do you get with the Stiebel Eltron Tempra 29 Trend?

Its listing states 28.8 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.

What should I check before ordering the Stiebel Eltron Tempra 29 Trend?

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, 28.8 kW gives about 3.1 GPM with 42 °F winter water and 4.6 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.

Where can I buy the Stiebel Eltron Tempra 29 Trend?

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.

Have you used the Stiebel Eltron Tempra 29 Trend yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing and 98 buyer reviews, read line by line and weighed with our published formula.

Electric tankless water heaters ↗All Stiebel Eltron products Comparison tool All product reviews