The working fluids in HVAC systems are mainly water, steam, refrigerants, natural gas and oil. Pipes and pipe networks are used to appropriately distribute the working fluids throughout the system.

A gas piping module, the first in a series of enhancements to the Power Design Pro™ software, a generator sizing tool, has been added. The gas piping module is used to determine the required pipe size ...

The Castle Rock, Colo., town council has approved the adoption of IAPMO’s Water Demand Calculator as an alternative methodology for sizing water pipes in single and multifamily buildings. A ...

You can best test and diagnose a residential hydronic heating system using pressure ports and balancing valves. However, few residential systems have either of these accessories. A commonly ...