Hi Delta Hydronic Boilers, 302C-902C

Raypak's family of Hi Delta Hydronic Boilers, 302C-902C, feature 84% efficiency, 2-stage operation, and is available in natural gas or propane variants.

Features:

• All models Indoor/Outdoor certified.
• 84% Efficiency.
• CAT I vertical venting, CAT III sidewall venting. No extractor required for sidewall applications up to 70ft on room air.
• 2-Stage operation.
• Patented burner "security blanket" enhances staged combustion, minimizes installation, start-up issues, and protects burners from metal fatigue.
• 105ºF minimum inlet water temperature.
• Cast-iron headers with copper finned tube heat exchanger. Brass headers and cupro-nickel tubes available as options. AB 1953 compliant.
• Sidewall venting capable. No extractor needed for most applications.
• Ducted combustion air ready. TruSeal® CSA-Certified direct-vent available.
• Status display and on-board diagnostic center, English, no codes.
• Certified under SCAQMD Rule 1146.2. Meets all Low NOx regulations.
• Available for natural gas or propane.
• Cascade control of up to 8 units, no external sequencer required.
• Cascade in parallel or sequential modulation modes.