Who do you spend the most time with each workday? Here is a hint: It’s not your parents, friends, boss, or spouse. The professional HVAC service technician spends more time with his or her tools than ...

The simple system in Figure 1 shows the application of the Second Law of Thermodynamics. The compressor (A) adds energy to the refrigerant, and it becomes hot, just the way a hand operated tire pump ...

Before the summer heat arrives, preparing your air conditioner is essential for efficient cooling and lower electricity bills. Simple maintenance steps such as cleaning filters, checking wiring, ...

If you live in the Phoenix area, it is likely hard for you to imagine what it would be like to live without air conditioning during the summer. It would not be strange if occasionally, with heartfelt ...