Is fireplace key profitable to sell on Amazon United States?

The niche generates $125K/yr across 12 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -56.3%. Flapen's verdict: Skip it (30/100).

How competitive is the fireplace key niche?

8 brands and 11 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in fireplace key?

Top complaints mined from reviews: Size-Overall, Defective Material/Parts, Advertised Vs Actual Product. The return rate is 2.8%.

When does demand for fireplace key peak?

Demand peaks in Jan–Nov–Dec; the busiest month runs 4.6× the quietest.

What does it cost to enter the fireplace key niche?

Listings span $4.42–$10.84; the average listing price is $7.52 (sweet spot $15–$100). The average incumbent carries 1,050 reviews — the moat a new listing must climb.

fireplace key

Skip it

Soft demand (-56.3% this quarter) — this niche doesn't clear our bar today.

Conversion

Great11.8%

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

Review moat

Good1,049.92

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.8%

return rate — above 5% kills the launch gate

Market size

Okay$125K

$125K/yr · 141K searches

Brand share

Bad90%

top-5 brand share — brand-locked demand

Avg price

Bad$7.52

avg listing price — sweet spot $15–$100

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad80%

top-5 click share — a locked-up shelf

Growth

Bad-56.3%

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

Price range

Bad$4.42–$10.84

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

According to Flapen's Amazon United States niche tracking, fireplace key is a $125K/yr Amazon United States market (141K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Skip it — 30/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

fireplace key market data

Units sold / yr: 20K–25K; avg 1,500–2,000/product
Revenue / yr: $150K–$188K; units × avg price
Conversion rate: 11.8%
Avg BSR: #66
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 62 months
Avg seller age: 184 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

Stanbroil46%
onlyfire17%
Himaweek10%
Tondiamo10%
Skyflame8%
OXDFK4%
Open — no brand owns it (2 brands, 6%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -56.3% search growth over the last 90 days.

Peak months: Jan, Nov, Dec · busiest ÷ quietest = 4.6×

Open Trend

Top fireplace key search terms

fireplace key30K/yr -55.4%11.8% conv.
gas fireplace key26K/yr -54.1%11.6% conv.
fireplace keys for gas valves21K/yr -68.1%12.6% conv.
gas valve key10K/yr -42.3%5.9% conv.
fireplace gas key13K/yr -57.5%11.1% conv.
gas key7K/yr -21.2%12.8% conv.
gas key for fireplace12K/yr -58.8%14.1% conv.
gas fireplace key replacement8K/yr -64.5%12.6% conv.
fireplace gas valve key5K/yr -55.9%6.8% conv.
fire place key gas4K/yr -68.1%11.1% conv.

All search terms

Top fireplace key 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 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Stanbroil Universal 3-Inch Gas Valve Key Fits 1/4 and 5/16 Turn Ball Valve for Gas Fire Pits and Fireplaces Antique Copper

Stanbroil$7.034.8★3,625 rev

Onlyfire Universal Gas Valve Key for Gas Fire Pits and Fireplaces 3 Chrome Replacement Gas Key Fits 1/4 and 5/16 Turn Ball Valve

onlyfire$6.984.7★1,789 rev

Stanbroil Universal 8-Inch Gas Valve Fireplace Key Fits 1/4 and 5/16 Turn Ball Valve Polished Chrome

Stanbroil$7.894.8★3,625 rev

Himaweek 2 Pieces Universal Gas Valve Key Fireplace Key 3 Inches for Gas Fire Pits Polished Brass Replacement Gas Key for Outdoor Gas Fireplace Fits Both 1/2 and 3/4 Turn Ball Valve (Silver)

Himaweek$8.244.5★184 rev

Tondiamo 2 Pcs Universal 3-Inch Gas Valve Key Fireplace Key for Gas Fire Pits Polished Brass Replacement for Outdoor Fireplace Fits Both 1/4-in and 5/16-inch Turn Ball(Silver)

Tondiamo$10.844.6★463 rev

Newest

by launch date

3 Inch Universal Gas Valve Key for Gas Fireplaces and Fire Pit Fits 1/4 and 5/16 Gas Valve Stems Corrosion Resistant Replacement Key Heavy Duty Metal Construction(Silver)

Generic$4.422 rev

5mo ago

Kyuionty 2 Pcs Universal Gas Valve Key 3 Inch Fits 1/4 and 5/16 Gas Valve Stems Bronze Replacement Key for Gas Fire Pits and Fireplaces

Kyuionty$7.4119 rev

10mo ago

OXDFK 3 Inch Universal Gas Valve Key Universal Valve Key for Gas Fireplaces Fits 1/4 and 5/16 Replacement Gas Valve Stems for Fire Pit and Fireplace Outdoor Gas Fireplace (Silver)

OXDFK$6.49104 rev

1y ago

OXDFK 3 Inch Universal Gas Valve Key Universal Valve Key for Gas Fireplaces Fits 1/4 and 5/16 Replacement Gas Valve Stems for Fire Pit and Fireplace Outdoor Gas Fireplace

OXDFK$6.65104 rev

1y ago

Tondiamo 2 Pcs Universal 3-Inch Gas Valve Key Fireplace Key for Gas Fire Pits Polished Brass Replacement for Outdoor Fireplace Fits Both 1/4-in and 5/16-inch Turn Ball(Bronze Color)

Tondiamo$10.77463 rev

2y ago

What buyers say about fireplace key

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

What buyers love

Size-Overall33%

“Nice Fit”

Quality-Overall20%

“Quality Replacement at Excellent Price”

Advertised Vs Actual Product14%

“Works as advertised”

Strength10%

“Really sturdy, look and feel very nice”

Durability6%

“will probably never break”

Color4%

“I love the color and the size, it's very functional and sturdy, it's defiantly worth it”

Ease Of Use4%

“easy to use”

Value For Money3%

“Great value”

Design-Overall2%

“Very classy looking”

Material Quality2%

“good material and quality”

What buyers complain about

Size-Overall33%

“Doesn't fit”

Defective Material/Parts33%

“Also, the product is unusable; it doesn't fit into the slot”

Advertised Vs Actual Product17%

“Bad description”

Instructions/User Manual/Troubleshooting17%

“Instructions are wrong”

Top return reasons

Size-Overall80%

Advertised Vs Actual Product7%

Functionality-Overall3%

Value For Money2%

Color2%

Defective Material/Parts1%

Mechanism Issues1%

Connectivity-Overall1%

Product Condition1%

Shape/Style1%

Common questions

Is fireplace key profitable to sell on Amazon United States?: The niche generates $125K/yr across 12 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -56.3%. Flapen's verdict: Skip it (30/100).
How competitive is the fireplace key niche?: 8 brands and 11 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in fireplace key?: Top complaints mined from reviews: Size-Overall, Defective Material/Parts, Advertised Vs Actual Product. The return rate is 2.8%.
When does demand for fireplace key peak?: Demand peaks in Jan–Nov–Dec; the busiest month runs 4.6× the quietest.
What does it cost to enter the fireplace key niche?: Listings span $4.42–$10.84; the average listing price is $7.52 (sweet spot $15–$100). The average incumbent carries 1,050 reviews — the moat a new listing must climb.