Guide describing how to air-seal around plumbing and piping penetrations through walls, ceilings, and floors.

Guide describing different types of gas shutoff valves that prevent gas spills and can stop the flow of natural gas into a home during an accident or natural disaster.

Guide describing effective ways to distribute hot water using either a core (compact) plumbing layout or a central homerun manifold piping system.

Guide describing the use of recirculation pumps to speed the flow of hot water to faucets for reduced wait times and savings in energy and water usage.

Guide describing how to insulate plumbing pipes.

Guide describing design and installation considerations for combined space and water heating systems using a tankless on-demand water heater, a hydronic heating coil and air handler, and optional cooling coil.

Guide describing testing of water-using fixtures, equipment, and appliances to ensure there are no leaks.

Guide describing water metering of individual dwelling units in multi-family buildings.

Guide describing strategies for purging air in existing steam heating systems in multifamily buildings.

Guide describing how to elevate a water heater above the base flood elevation to protect it from flood damage.