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Water Heater

Maybe

The products selling today average only 4.0★. But demand is soft, at -22.2% this quarter, so Water Heater is a Maybe.

Flapen Score
53
53 / 100
Top 29% of 2,225 DIY & Tools niches · +4 vs the category median of 49
Market size
£240K/yr303K searches / yr
90-day growth
-22.2%search demand this quarter
Competition
46%top-5 click share · 32 brands · 59 sellers

Flapen Score

Water Heater against its category

The dotted line is the DIY & Tools average. Past it, Water Heater is stronger. Inside it, weaker.

53Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Water Heater market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Water Heater 303K times last year and spent an estimated £240K. The top 5 brands take 49% of clicks. Demand peaks in Jan. Flapen scores it 53 out of 100, a Maybe.

01 · Demand

An estimated 1.5% of those searches ended in a purchase.

Shoppers searched for this 303K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 1.5% of those searches ended in a purchase. Searches in the last 90 days moved -22.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £240K a year.

Searches, last 12 months
303K
Growth, 90 days vs prior 90
-22.2%
Conversion, latest week
1.5%
Market size, estimated
£240Ka year
Peak month
January1.7× the quietest month
Top search term
water heater81K searches a year

02 · Price

A sale here is worth £52.03.

Listings sell for £52.03 on average, from £6.27 to £209.77. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At £52.03 that is £5K to £13K a year per listing.

Average price
£52.03inside the $15 to $100 sweet spot
Price range
£6.27–£209.77
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
4K–5K
Units per listing a year
100–250
Revenue per listing a year
£5K–£13K
Returns
3.2%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

85% of listings pay for placement with sponsored ads. 68% ship with Prime. On an average day, 19.5% of listings are out of stock. The average listing ranks #696 within Plumbing. It carries 567 reviews at 4.03 stars, so a new listing needs social proof before a better product.

Sponsored listings
85%
Prime listings
68%
Out of stock, average day
19.5%
Average rank
#696in Plumbing
Average rating
4.03 starsAmazon United Kingdom average 4.36 stars
Average reviews
567per listing
Listings tracked
41

04 · Newcomers

3 of last year's 11 launches cleared the first-year sales bar.

11 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 46 months on average, so the names here are settling in.

Launched, last 12 months
11
Successful launches
3Amazon's first-year sales bar
Average brand age
46 months

Products

Top Water Heater products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 46% of clicks. Leaders hold, but buyers still shop past them.

£0£10K£19K£29K£38K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

32 rising

Sellers

59

Est. top-5 brand share

49%

Top 20: 89%

Est. top-5 click share

46%

Top 20: 81%

Open market

46%

  • Triton Showers13%
  • JOPWUE13%
  • GINGER TECH10%
  • Ariston8%
  • Grosion5%
  • HITOP5%

Demand

Water Heater search demand

Weekly searches over the year, seasonality beneath. Pick a range.

8K6KSpike '24Black Friday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.7×

Search terms

Top Water Heater search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • water heater81K/yr
  • portable water heater39K/yr
  • immersion heater25K/yr
  • electric water heater26K/yr
  • immersion water heater14K/yr
  • under sink water heater14K/yr
  • instant water heater16K/yr
  • water heater for sink13K/yr
  • water heater for bath15K/yr
  • camping water heater7K/yr

Reviews and returns

What reviews say buyers love and hate about Water Heater

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Ease Of Use”
16%of negative reviews mention “Heating”
3.2%of orders come back
“Heater did not work”
A buyer, on “Heating”16% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common Water Heater questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data