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39

duravent

Skip it

Soft demand (-52.9% this quarter) — this niche doesn't clear our bar today.

Market size 30Growth 0Conversion 16Competition 62Returns 97Price range 9Avg price 58Brand share 3Review moat 94Quality gap 58

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Review moat

Great119.41

avg incumbent reviews — the moat a new listing must climb

Competition

Good48%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good$149.53

avg listing price — sweet spot $15–$100

Market size

Okay$134K

$134K/yr · 69K searches

Conversion

Bad1.3%

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

Price range

Bad$37.14–$757.78

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

Brand share

Bad99%

top-5 brand share — brand-locked demand

Growth

Bad-52.9%

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

According to Flapen's Amazon United States niche tracking, duravent is a $134K/yr Amazon United States market (69K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 39/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

duravent market data

Units sold / yr
1K–2K
avg 0–100/product
Revenue / yr
$187K–$224K
units × avg price
Conversion rate
1.3%
Avg BSR
#15,142
Page quality
0%
Prime
19%
Sponsored
59%
Out of stock
4.6%
Avg brand age
63 months
Avg seller age
147 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 flat

Sellers

78

Top-5 brand share

99%

Top 20: 100%

Top-5 click share

48%

Top 20: 93%

Open market

0%

  • DuraVent76%
  • AllFuel HST11%
  • Selkirk6%
  • Pschimit.W3%
  • Ventylis2%
  • REEPLAR1%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -52.9% search growth over the last 90 days.
5K4KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 8.6×

Top duravent search terms

  • duravent14K/yr
  • duravent 6 inch double wall stove pipe13K/yr
  • double wall stove pipe11K/yr
  • 6 inch double wall stove pipe7K/yr
  • duravent 6 inch6K/yr
  • double wall stove pipe 6 inch6K/yr
  • 6 double wall stove pipe7K/yr
  • duravent stove pipe6K/yr
All search terms

Top duravent 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%4%$5K8%$11K12%$16K16%$21K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about duravent

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

What buyers love

Quality-Overall23%

“Premium quality”

Size-Overall19%

“Fit is perfect”

Advertised Vs Actual Product9%

“Just as advertised”

Assembly/Installation8%

“Easy to put together”

Value For Money5%

“It's a good value for the money”

Durability5%

“Seems durable”

Ease Of Cleaning4%

“clean insulation”

Leak-Proof3%

“No leaks”

Locking Mechanism2%

“The locking band tightens down well”

Heating2%

“That allows the heat to escape”

What buyers complain about

Size-Overall18%

“Not sure why it doesn't fit a standard 6 collar”

Advertised Vs Actual Product15%

“Poor description”

Thickness8%

“Very thin walled pipe”

Smell8%

“Stinks”

Compatibility-Overall8%

“Didn't fit well with a different brand pipe”

Rusts/Corrodes8%

“The adapter rusted away”

Value For Money5%

“The price, it is kind of high,”

Strength3%

“very flimsy”

Quality-Overall3%

“cheap quality”

Assembly/Installation3%

“This was literally a pain the the butt to install”

Top return reasons

Size-Overall52%
Compatibility-Overall15%
Connectivity-Overall7%
Defective Material/Parts7%
Advertised Vs Actual Product5%
Value For Money2%
Assembly/Installation2%
Functionality-Overall1%
Maintenance And Repair1%
Flammable1%

Common questions

Is duravent profitable to sell on Amazon United States?
The niche generates $134K/yr across 27 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -52.9%. Flapen's verdict: Skip it (39/100).
How competitive is the duravent niche?
6 brands and 78 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 99% of demand.
What do buyers complain about in duravent?
Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Thickness. The return rate is 0.6%.
When does demand for duravent peak?
Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 8.6× the quietest.
What does it cost to enter the duravent niche?
Listings span $37.14–$757.78; the average listing price is $149.53 (sweet spot $15–$100). The average incumbent carries 119 reviews — the moat a new listing must climb.