Weil-McLain’s Stainless Steel Vertical Firetube (SVF) boiler features industry-leading thermal efficiency up to 97.1%, easy installation and maintenance, the intuitive and user-friendly Unity control system, and Weil-McLain boiler design reliability and longevity.
With a patented stainless steel fire tube heat exchanger, Navien’s NFB condensing wall-hung boiler brings the industry a new level of technology in this category.