Tenant cannot get a cool shower because the shower system provides only hot water (90-100°F) due to a mixing valve or preset temperature, with no way to dial down to cool temperatures.

Existing shower mixing valves are designed for cold climates with fixed temperature limits, lacking a cool-water bypass or adjustable range for warm climates.

Severity

3Medium

Willingness to Pay

implied

Added

Apr 29, 2026

App Concept

CoolFlow Thermostat

A retrofit shower valve controller that allows full range temperature control from cold to hot, with a lockable max temperature for safety. It replaces existing single-handle valves with a digital or analog module that bypasses the mandatory hot water pre-mix in warm climates.

Key Features

Full cold-to-hot temperature range (60-120°F)
Adjustable temperature limiter for safety
Easy retrofit installation on existing shower arms
Compatible with most standard shower fixtures
Digital display showing exact water temperature

Target Users: Property owners and tenants in warm climate apartments and hotels with fixed-temperature shower systems

Revenue Model: $79 per unit retail, with $59 bulk pricing for property managers

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