Navien’s new NPN (premium non-condensing) series of tankless water heaters is offered in the NPN-U (universal) and NPN-E (exterior) options, both of which will be available in 160,000 Btu/h, and 199,900 Btu/h models for either natural gas or liquid propane.
General Pipe Cleaners’ reformulated Snake Oil Plus offers enhanced protection of drain cleaning cables and machines, and can extend the life of other equipment as well, the company points out.