HVACPart Identification & Selection3MediumHomeowner/DIYer$ implied
Unable to determine correct size for B vent flashing and storm collar due to lack of published inner diameter specifications from manufacturers.
B vent manufacturers do not publish inner diameters for flashings and storm collars, making it impossible for users to verify fit before ordering.
44
0
Opp. Score
44
Severity
3Medium
Willingness to Pay
implied
Added
Jul 3, 2026
Workarounds Described
- measuring circumference and calculating diameter
- ordering based on nominal size and hoping for fit
Implied Software Gaps
- A database with actual inner diameters of B vent flashings and storm collars
App Concept
VentFit Pro
A web app that matches B vent parts by inputting actual vent circumference or nominal size. It cross-references manufacturer specs (including unpublished inner diameters from user uploads) to recommend the correct flashing and storm collar, reducing order errors and returns.
Key Features
- Input vent circumference or nominal size to find compatible parts
- Crowdsourced database of actual inner diameters from user measurements
- Side-by-side comparison of multiple manufacturers' offerings
- Direct links to purchase or local supplier lookup
Target Users: DIY homeowners and HVAC contractors replacing or installing B vent systems
Revenue Model: $4.99 per lookup or $19.99/year subscription
Existing Solutions Mentioned
Metal Fab
Part of App Idea
Unable to determine correct size for B vent flashing and storm collar due to lack of published inner diameter specifications from manufacturers.Want to go deeper?
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