When it’s initial cost vs. operating costs of any mechanical system replacement or overhaul, there’s almost always a trade-off. For large apartment buildings, whether heating and cooling costs are ...

Last month I wrote about early steam heating and how experimentation led to discovery, which led to new products or piping techniques. This time I will be writing about the early days of gravity hot ...

. The system at Edward Little High School features 110,000 ft (32,528 m) of 1/2 in. REHAU RAUPEX® O2 barrier crosslinked polyethylene (PEXa) pipe. At 280,000 sq ft (26,013 sq m), Edward Little High ...

If you have a house that isn’t used in the winter or a home that has pipes running through an unheated area, such as a crawl space or attic, and the temperatures drop below freezing, you may want to ...