Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

Hover over main image for caption information. A typical oil fired forced hot water heating system, installed in 1980 was ready for replacement. The original boiler room equipment was removed, which ...

As director of engineering for the Boston Marriott Cambridge, Robert Vass knows that each mechanical decision he makes for the hotel has 431 opportunities to fail. That’s the number of guestrooms at ...

If you're looking to keep your energy costs down, this is what you need to try ...