Tackling these will lower your utility bills, avoid larger and more costly repairs, and make your home's temperature more ...

Absorption heat transformers (AHTs) are advanced thermal systems designed to upgrade low-grade waste heat to higher, more useful temperature levels. By exploiting the thermodynamic properties of ...

All questions and answers are based on the 2011 NEC. Q. What are the grounding electrode requirements for a separately derived system, such as a transformer? [250.30(A)(4)] A. First of all, let’s ...

To achieve peak efficiency and prevent corrosion, steam and hot water boilers in hydronic heating systems require regular maintenance. Neglecting this can lead to increased service calls and a ...