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Plumbing, HVAC, Electrical, or other field serviceWater Supply & Pump Automation2MildHomeowner$ implied

A tankless water heater fails to heat water for a distant shower, requiring manual activation by running another faucet.

The water heater does not sense enough flow from the distant shower to ignite, and typical solutions like replacing parts or changing showerheads haven't fixed it.

Severity

2Mild

Willingness to Pay

implied

Added

Jul 3, 2026

Workarounds Described

runs another faucet to kick on hot water

Implied Software Gaps

Automated flow detection and heater activation for distant fixtures

App Concept

FlowSense Pro

FlowSense Pro is a smart flow detector that installs at the water heater or distant fixture, ensuring the heater activates even with low-flow fixtures. It adjusts the heater's ignition threshold automatically or sends an alert to run another faucet.

Key Features

Low-flow detection and automatic heater activation
Wireless sensor for remote fixtures
Smartphone alerts when manual intervention is needed
Compatible with all tankless water heater brands

Target Users: Homeowners and plumbers dealing with distant shower hot water delays, especially in homes with tankless water heaters and low-flow fixtures.

Revenue Model: $129 one-time hardware purchase plus $4.99/month optional monitoring service

Existing Solutions Mentioned

Rinnai tankless water heateralternative shower heads

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