Is heat alarm profitable to sell on Amazon United Kingdom?

The niche generates £109K/yr across 6 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -19.5%. Flapen's verdict: Skip it (32/100).

How competitive is the heat alarm niche?

4 brands and 15 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in heat alarm?

Top complaints mined from reviews: Durability, Battery Life, Noise Level. The return rate is 1.8%.

When does demand for heat alarm peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the heat alarm niche?

Listings span £10.85–£13.44; the average listing price is £12.00 (sweet spot $15–$100). The average incumbent carries 2,358 reviews — the moat a new listing must climb.

heat alarm

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible13.0%

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

Returns

Great1.8%

return rate — above 5% kills the launch gate

Avg price

Good£12.00

avg listing price — sweet spot $15–$100

Review moat

Okay2,358.17

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay£109K

£109K/yr · 70K searches

Growth

Bad-19.5%

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

Competition

Bad96%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Price range

Bad£10.85–£13.44

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

According to Flapen's Amazon United Kingdom niche tracking, heat alarm is a £109K/yr Amazon United Kingdom market (70K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 32/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

heat alarm market data

Units sold / yr: 8K–10K; avg 1,500–2,000/product
Revenue / yr: £96K–£120K; units × avg price
Conversion rate: 13.0%
Avg BSR: #40
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 51 months
Avg seller age: 172 days

Competition & brand share

The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

96%

Top 20: 100%

Open market

Fireangel54%
BLACK+DECKER25%
X-Sense12%
WISUALARM10%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -19.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top heat alarm search terms

heat alarm for kitchen20K/yr -13.6%12.1% conv.
heat alarm18K/yr -19.4%8.3% conv.
heat detector for kitchen11K/yr -16.6%15.1% conv.
heat detector10K/yr -28.7%7.7% conv.
fire angel heat alarm3K/yr -12.5%15.4% conv.
heat detector alarm3K/yr -15.4%9.0% conv.
heat sensor3K/yr -41.0%5.4% conv.
fireangel heat alarm3K/yr -35.1%14.4% conv.

All search terms

Top heat alarm 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 6 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

FireAngel FA6720-R Heat Alarm for Kitchen with 10 Year Battery Heat Detector for Kitchen Fire Alarm for Home FireAngel HT-630 Replacement 1-Pack

Fireangel£12.524.6★858 rev

BLACK+DECKER Kitchen Heat Alarm.10 Year Battery Life With Built In Lithium Battery. Easy To Install Heat Alarm For Home. Simple To Fit Detector Sensor

BLACK+DECKER£11.424.3★43 rev

X-Sense Heat Alarm with 10-Year Sealed Battery LED indicator & Silence Button Fast and Accurate Heat Detection Protect Your Home XH02 1-Pack

X-Sense£11.684.7★174 rev

Heat Alarm 10-Years Sealed Battery Heat Detector for Kitchen Heat Alarm for Kitchen Can Mute Remotely Big Mute/Test Button Heat Detector for Kitchen Conforms to BS 5446 (Standalone Heat Alarm)

WISUALARM£13.444.5★388 rev

BLACK+DECKER Multi-Sensor Smoke And Heat Alarm. Battery Powered With 10 Year Battery Included. Easy To Install Smoke Detector Fire Alarm. Smoke Alarms for Home.

BLACK+DECKER£12.104.9★52 rev

Newest

by launch date

BLACK+DECKER Kitchen Heat Alarm.10 Year Battery Life With Built In Lithium Battery. Easy To Install Heat Alarm For Home. Simple To Fit Detector Sensor

BLACK+DECKER£11.4243 rev

8mo ago

BLACK+DECKER Multi-Sensor Smoke And Heat Alarm. Battery Powered With 10 Year Battery Included. Easy To Install Smoke Detector Fire Alarm. Smoke Alarms for Home.

BLACK+DECKER£12.1052 rev

8mo ago

X-Sense Heat Alarm with 10-Year Sealed Battery LED indicator & Silence Button Fast and Accurate Heat Detection Protect Your Home XH02 1-Pack

X-Sense£11.68174 rev

12mo ago

Heat Alarm 10-Years Sealed Battery Heat Detector for Kitchen Heat Alarm for Kitchen Can Mute Remotely Big Mute/Test Button Heat Detector for Kitchen Conforms to BS 5446 (Standalone Heat Alarm)

WISUALARM£13.44388 rev

2y ago

FireAngel FA6720-R Heat Alarm for Kitchen with 10 Year Battery Heat Detector for Kitchen Fire Alarm for Home FireAngel HT-630 Replacement 1-Pack

Fireangel£12.52858 rev

4y ago

What buyers say about heat alarm

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

What buyers love

Quality-Overall17%

“it seems well made”

Size-Overall10%

“Simple to fit”

Assembly/Installation10%

“Installation was quick”

Alarm/Timer Accuracy9%

“The alarm is nice”

Value For Money9%

“Good value”

Battery Life8%

“Good product with a long battery life”

Advertised Vs Actual Product5%

“Does the job”

Ease Of Use5%

“Ease of use”

Noise Level3%

“the alarm sounds is good from the test”

Design-Overall2%

“Quality product and a pleasing design”

What buyers complain about

Durability33%

“Failed within two years”

Battery Life29%

“No battery life”

Noise Level7%

“Most alarming”

Quality-Overall3%

“Cheap Rubbish”

Functionality-Overall3%

“contacted them again to say that it did not work cleaning it”

Alarm/Timer Accuracy2%

“giving false alarms”

Auto Sleep/Wake Feature1%

“not the nicest thing to wake up to”

Mounting1%

“Mounting plate missing”

Value For Money1%

“but Very Pricey”

Assembly/Installation1%

“Putting my multi sensor alarm together took a few goes to get it to turn on”

Top return reasons

Alarm/Timer Accuracy23%

Functionality-Overall20%

Size-Overall13%

Compatibility-Overall9%

Defective Material/Parts8%

Connectivity-Overall6%

Noise Level4%

Touch/Button Controls3%

Product Condition3%

Advertised Vs Actual Product2%

Common questions

Is heat alarm profitable to sell on Amazon United Kingdom?: The niche generates £109K/yr across 6 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -19.5%. Flapen's verdict: Skip it (32/100).
How competitive is the heat alarm niche?: 4 brands and 15 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in heat alarm?: Top complaints mined from reviews: Durability, Battery Life, Noise Level. The return rate is 1.8%.
When does demand for heat alarm peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the heat alarm niche?: Listings span £10.85–£13.44; the average listing price is £12.00 (sweet spot $15–$100). The average incumbent carries 2,358 reviews — the moat a new listing must climb.