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flame sensor for furnace
Skip itSoft demand (-86.6% this quarter) — this niche doesn't clear our bar today.
Review moat
Great499.43avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Returns
Okay4.2%return rate — above 5% kills the launch gate
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Avg price
Okay$9.42avg listing price — sweet spot $15–$100
Market size
Bad$38K$38K/yr · 107K searches
Price range
Bad$4.98–$15.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-86.6%90-day search growth — must beat 0% to launch