Navien的新东西NCB-H凝聚组合锅炉系列包括5型号，范围从160,000 BTU / H for DHW和60,000 BTU / H加热，到行业前210,000 BTU / H DHW和150,000 BTU / H加热。NCB-H采用耐用的双不锈钢换热器，用于加热和用于DHW的单独平板不锈钢热交换器。
Advanced features on the NCB-H include 15:1 TDR for DHW and up to 11:1 TDR for heating, advanced controls with intuitive display, built-in advanced DHW recirculation controls, 2” venting up to 65’ and 3” venting up to 150’, common venting capability with up to 7 NPE tankless water heaters, cascade capability with up to 15 NPE tankless water heaters, field gas convertibility to NG high altitude (5,400 ft. to 10,100 ft.) or LP (up to 10,000 ft.) and a new DHW module with mixing valve and flow adjustment valve.
Navien还透露了与他们的火管线的更新NFC-H火管组合锅炉和NFB-H消极管锅炉。Both the NFC-H and NFB-H now offer turndown ratios up to 15:1, powered connections for 3 zone pumps or 3 zone valves, easy to use Setup Wizard for improved installation, 2” venting up to 65’ and 3” venting up to 150’. The NFC-H also includes increased DHW performance with up to 210,000 BTU/H for DHW, offering up to 5.4 GPM at a 70-degree temperature rise. Both the NFC-H and NFB-H will begin shipping from Navien in April 2021.