Description
The Hydrotherm 14-00304-001 is an OEM replacement SPDT (Single-Pole, Double-Throw) pressure switch engineered specifically for Hydrotherm heating systems. Calibrated to a 3.00″ water column (wc) setpoint, this switch monitors system pressure and provides a reliable switching action to protect equipment and maintain safe operating conditions.
Key Features
- OEM Hydrotherm replacement part — ensures proper fit and function
- SPDT (Single-Pole, Double-Throw) switching action for versatile circuit control
- Factory-set 3.00″ water column (wc) pressure setpoint
- Designed to monitor and respond to pressure changes in hydronic and boiler systems
- Helps prevent equipment damage by interrupting operation when pressure thresholds are reached or not met
- Durable construction built to withstand the demands of commercial and residential heating applications
Application
This pressure switch is a direct replacement component for compatible Hydrotherm boiler and hydronic heating systems. It is commonly used to prove draft, monitor combustion air pressure, or verify proper venting conditions before allowing burner operation — a critical safety function in modern heating equipment.
Product Specifications
- Brand: Hydrotherm
- Part Number / SKU: 14-00304-001
- Switch Type: SPDT (Single-Pole, Double-Throw)
- Pressure Setpoint: 3.00″ Water Column (wc)
- Application: Hydronic / Boiler Systems







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