Raypak: Hi Delta® Boilers
Features: All models indoor/outdoor certified. 87% Efficiency. Cat II or IV venting required. 120ºF minimum inlet water temperature. Cast-iron headers with copper finned tube heat exchanger standard. Brass headers and cupro-nickel tubes available as options. AB 1953 compliant. Patented burner “security blanket” enhances staged combustion, minimizes installation, start-up issues, and..
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