A group of Navien workers pose with the first shipment. IRVINE, CA – Navien – the leader in condensing wall-hung boilers – officially launched their commercial sized fire tube boiler series, the NFB-C ...
Description: The NFB series is available in two models: NFB-175 (175,000 Btuh) and NFB-200 (199,900 Btuh), each featuring a patented fire tube heat exchanger. Designed in-house, it is form-pressed and ...
Description: Available in two sizes — NFB-301C (301 MBH) and NFB-399C (399 MBH) — each boiler uses the same in-house designed and manufactured patented heat exchanger technology that was introduced ...
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