PlumbingPart Identification & Selection3MediumPlumber$ implied
Plumber struggles to calculate gas pipe sizing for a new appliance, specifically whether 3/4" CSST and poly pipe will suffice for a 125-foot, 30k BTU run, due to confusion with sizing chart math.
Sizing charts are complex and error-prone for non-engineers; no simple tool exists to input distance, BTU, pressure, and pipe type to get a definitive answer.
42
0
Opp. Score
42
Severity
3Medium
Willingness to Pay
implied
Added
Jun 7, 2026
Workarounds Described
- studies sizing chart manually
- draws crude diagram of house setup
Implied Software Gaps
- Mobile app that calculates gas pipe sizing based on inputs (BTU, distance, pipe material, pressure) without referencing charts
App Concept
PipeSizer Pro
A mobile app that calculates gas pipe sizing instantly. Plumbers input distance, BTU load, pipe material, and pressure; the app outputs required diameter and maximum run length with clear yes/no guidance.
Key Features
- Input total BTU and distance to get recommended pipe diameter
- Support for CSST, black iron, poly, and other common materials
- Display maximum allowable run length for given pipe size and pressure
- Include a diagram builder for complex layouts
Target Users: Plumbers and HVAC technicians in small-to-medium businesses sizing gas lines for residential or light commercial projects
Revenue Model: $9.99/month or $49.99/year subscription; free version with ads and limited calculations
Existing Solutions Mentioned
sizing chartcrude drawing
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