The lower pressure drop on the water side contributes to the compact size and the lower pressure on the flue gas side contributes to the longer approved vent lengths (up to 481’).
An installer sets up a zoned distribution system as shown below. To keep it simple, he uses the same size piping for the headers and all the distribution circuits. The heat source is a low-mass, copper-tube boiler with high-flow resistance.
The schematic in Figure 1 represents a drawing I recently reviewed for a proposed system that was to supply three zones of finned-tube based, two zones of low-temperature radiant panel heating, and an indirect domestic water heater.
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.
Webstone, a brand of NIBCO, announces new Magnetic Boiler Filter. Designed to protect system components and maintain efficiency, the high-powered 12,000 Gauss magnet captures ferrous debris from the system before it reaches the boiler.
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.
