HVAC technician cannot find a zone board that allows simultaneous heating and cooling to dehumidify a home while maintaining temperature.

The Honeywell HZ322 zone board does not support simultaneous heat and cool operation; it only runs the fan when both signals are present, making effective dehumidification impossible.

Opp. Score

Severity

4High

Willingness to Pay

implied

Added

May 19, 2026

App Concept

DualMode Zone Controller

A zone board that intelligently coordinates heat and cool calls for dehumidification without sacrificing temperature control. It overrides the typical restriction of running only the fan, enabling simultaneous heating and cooling to actively remove humidity while maintaining comfort.

Key Features

Simultaneous heat and cool operation for dehumidification
Compatible with Honeywell and other smart thermostats
Adjustable priority logic for temperature vs. humidity
Easy retrofit in existing zone systems

Target Users: HVAC technicians and homeowners with high-humidity climates and multi-zone systems in foam-insulated homes

Revenue Model: $200-300 per unit direct sale to HVAC distributors or $25/mo subscription for remote monitoring and firmware updates

Existing Solutions Mentioned

Honeywell HZ322 zone board

Part of App Idea

HVAC technician cannot find a zone board that allows simultaneous heating and cooling to dehumidify a home while maintaining temperature.

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