The problem: Replacing electric heating with gas. The apprentice: Allen Charles Edwards (ACE), a first-year mechanic. The technician: N. Arthur Thomas Egan (NATE), a15-year veteran. As the work for ...

Q: Tim, I went to buy some plastic drain pipe, and after looking at all the types, my head started to hurt. I decided to leave the store and do some research. I’ve got several projects for which I ...

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.

Recently I got asked to size a high pressure natural gas line, which I’m not an expert at, but I wanted to help these guys out. A gas line is sized based on the type of gas used, so that is the first ...

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 ...