Skip to content
52

heitmann entkalker

Worth a look

Shows low returns (0.4%), but soft demand (-28.4% this quarter) keeps it on the watch list.

Market size 34Growth 11Conversion 88Competition 23Returns 98Price range 84Avg price 70Brand share 39Review moat 63Quality gap 81

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great10.2%

search→purchase rate — share of searches ending in a sale

Price range

Great€2.31–€93.11

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Avg price

Good€14.43

avg listing price — sweet spot $15–$100

Review moat

Good968.11

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Market size

Okay€162K

€162K/yr · 110K searches

Competition

Bad73%

top-5 click share — a locked-up shelf

Growth

Bad-28.4%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon Germany niche tracking, heitmann entkalker is a €162K/yr Amazon Germany market (110K searches/yr). The top 5 brands hold 82% of demand. Verdict: Worth a look — 52/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

heitmann entkalker market data

Units sold / yr
10K–13K
avg 250–500/product
Revenue / yr
€144K–€180K
units × avg price
Conversion rate
10.2%
Avg BSR
#255
Page quality
0%
Prime
53%
Sponsored
53%
Out of stock
4.3%
Avg brand age
47 months
Avg seller age
189 days

Competition & brand share

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

15 rising

Sellers

43

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

73%

Top 20: 100%

Open market

15%

  • HEITMANN pure35%
  • Limey20%
  • Maximex17%
  • 3 Pagen6%
  • HEITMANN4%
  • Sanitop-Wingenroth4%
  • Open — no brand owns it (9 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 79 weeks — -28.4% search growth over the last 90 days.
4K3KSpike '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

No pronounced peak months · busiest ÷ quietest = 1.6×

Top heitmann entkalker search terms

  • wasserhahn entkalker aufsatz38K/yr
  • zitronensäure flüssig30K/yr
  • wasserhahn entkalker10K/yr
  • entkalker wasserhahn12K/yr
  • wasserhahn entkalker aufsatz silikon8K/yr
  • heitmann entkalker7K/yr
  • bio entkalker3K/yr
  • citronensäure flüssig3K/yr
All search terms

Top heitmann entkalker products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%€16K20%€32K30%€49K40%€65K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about heitmann entkalker

What buyers praise and complain about, mined from review topics.

What buyers love

Qualität insgesamt18%

“Super Produkt”

Einfache Reinigung14%

“Bestes Reinigungsmittel”

beworben Vs Tatsächliches Produkt11%

“Produkt so wie beschrieben”

Effizienz10%

“Super Wirkkraft”

Benutzerfreundlichkeit8%

“Easy”

Preis-Leistungs-Verhältnis7%

“Preis/Leistung super”

Gesamtgröße6%

“Passt”

Sprühen/Durchfluss4%

“Guter Wasserstrahl”

Filterung3%

“Preis ist top Filter nachkaufen günstig”

Stärke2%

“Stark in der Wirkung”

What buyers complain about

Gesamtgröße18%

“Falsche Abmessungen, passt nicht”

Qualität insgesamt12%

“Müll”

Funktionalität insgesamt11%

“Funktioniert nicht”

Filterung7%

“Filtert nicht”

Kompatibilität – insgesamt6%

“Für Standardarmatur nicht geeignet”

Benutzerfreundlichkeit5%

“Rutscht immer wieder runter vom Wasserhahn, nie wieder,sorry”

Add-Ons/Anhänge4%

“.passt auf keinen Aufsatz”

beworben Vs Tatsächliches Produkt4%

“Beschreibung etwas verwirrend”

Preis-Leistungs-Verhältnis4%

“leider zu teuer”

Wasserbeständigkeit4%

“Verbesserung der Wasserhärte ist null”

Top return reasons

Gesamtgröße74%
Funktionalität insgesamt6%
Kompatibilität – insgesamt4%
Auslaufsicher3%
Defekt Material/Teile2%
Filterung2%
Qualität insgesamt1%
Wasserbeständigkeit1%
Preis-Leistungs-Verhältnis1%
beworben Vs Tatsächliches Produkt1%

Common questions

Is heitmann entkalker profitable to sell on Amazon Germany?
The niche generates €162K/yr across 19 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -28.4%. Flapen's verdict: Worth a look (52/100).
How competitive is the heitmann entkalker niche?
15 brands and 43 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in heitmann entkalker?
Top complaints mined from reviews: Gesamtgröße, Qualität insgesamt, Funktionalität insgesamt. The return rate is 0.4%.
When does demand for heitmann entkalker peak?
Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the heitmann entkalker niche?
Listings span €2.31–€93.11; the average listing price is €14.43 (sweet spot $15–$100). The average incumbent carries 968 reviews — the moat a new listing must climb.