Is eph profitable to sell on Amazon United Kingdom?

The niche generates £43K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -56.0%. Flapen's verdict: Skip it (31/100).

How competitive is the eph niche?

5 brands and 18 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in eph?

Top complaints mined from reviews: Assembly/Installation, Heating. The return rate is 3.1%.

What does it cost to enter the eph niche?

Listings span £22.15–£124.22; the average listing price is £53.13 (sweet spot $15–$100). The average incumbent carries 57 reviews — the moat a new listing must climb.

eph

Skip it

Soft demand (-56.0% this quarter) — this niche doesn't clear our bar today.

Review moat

Incredible56.67

avg incumbent reviews — the moat a new listing must climb

Avg price

Great£53.13

avg listing price — sweet spot $15–$100

Price range

Great£22.15–£124.22

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

Conversion

Good4.9%

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

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad£43K

£43K/yr · 17K searches

Competition

Bad89%

top-5 click share — a locked-up shelf

Growth

Bad-56.0%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Low Review Barrier High Price

According to Flapen's Amazon United Kingdom niche tracking, eph is a £43K/yr Amazon United Kingdom market (17K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 31/100.

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

eph market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: £27K–£40K; units × avg price
Conversion rate: 4.9%
Avg BSR: #363
Page quality: 0%
Prime: 33%
Sponsored: 22%
Out of stock: 4.4%
Avg brand age: 46 months
Avg seller age: 177 days

Competition & brand share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

EPH Controls53%
EPH39%
Generic3%
EVO3%
WBP3%

Demand

Weekly Amazon search volume, last 33 weeks — -56.0% search growth over the last 90 days.

Open Trend

Top eph search terms

eph thermostat7K/yr -69.5%2.4% conv.
eph combi pack 44K/yr -42.8%5.1% conv.
eph controls thermostat3K/yr -52.2%2.2% conv.
eph3K/yr -42.0%1.1% conv.

All search terms

Top eph 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NASUSA EPH Digital RF Programmable Room Thermostat - Receiver Combipack 4 / RFRP & RF1A / (White Modern Style Zigbee Touch Control Battery Powered 3.3 Volts HVAC Control Thermostat)

EPH Controls£55.544.6★279 rev

EPH - CP4 V2 (Combipack 4) - Digital Programmable Wireless RF Room Thermostat (RFRP v2) & Receiver (RF1B) - Works with Combi System and Heat Only boilers (5 Year Warranty)

EPH£56.174.6★21 rev

EPH CP4M Mains Operated PROGRAMMABLE Room Thermostat

EPH£46.984.0★49 rev

EPH 2 Zone Programmer A27-HW

EPH£47.314.6★15 rev

Mains Operated Non Programmable Thermostat

Generic£25.134.1★9 rev

Newest

by launch date

ESi ESRTP4TOUCH Wireless Programmable Room Thermostat & Receiver (White) - EVO

EVO£43.124 rev

7mo ago

EPH - CP4 V2 (Combipack 4) - Digital Programmable Wireless RF Room Thermostat (RFRP v2) & Receiver (RF1B) - Works with Combi System and Heat Only boilers (5 Year Warranty)

EPH£56.1721 rev

1y ago

Mains Operated Non Programmable Thermostat

Generic£25.139 rev

3y ago

EPH 2 Zone Programmer A27-HW

EPH£47.3115 rev

4y ago

EPH CP4i Smart Thermostat White

EPH Controls£124.228 rev

4y ago

What buyers say about eph

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

What buyers love

Size-Overall20%

“Easy fit and works well”

Advertised Vs Actual Product15%

“Exactly as described”

Ease Of Use13%

“Very easy to use”

Assembly/Installation12%

“Easy to install”

Quality-Overall12%

“Good quality thermostat”

Efficiency10%

“Yes spot on works great”

Instructions/User Manual/Troubleshooting5%

“Easy programming”

Temperature Control3%

“.setting the temprature is easy”

Heating3%

“Good quality thermostat”

What buyers complain about

Assembly/Installation33%

“Complicated to set up”

Heating33%

“left us to programme it its so complicated we just cannot get timings right for heating to come on or off”

Top return reasons

Compatibility-Overall41%

Functionality-Overall16%

Connectivity-Overall7%

Advertised Vs Actual Product7%

Defective Material/Parts6%

Heating5%

Maintenance And Repair3%

Software/Application3%

Alarm/Timer Accuracy2%

Display-Overall2%

Common questions

Is eph profitable to sell on Amazon United Kingdom?: The niche generates £43K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -56.0%. Flapen's verdict: Skip it (31/100).
How competitive is the eph niche?: 5 brands and 18 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in eph?: Top complaints mined from reviews: Assembly/Installation, Heating. The return rate is 3.1%.
What does it cost to enter the eph niche?: Listings span £22.15–£124.22; the average listing price is £53.13 (sweet spot $15–$100). The average incumbent carries 57 reviews — the moat a new listing must climb.

eph