Heat pumps operate by moving heat from lower temperature areas to higher temperature areas. They typically take advantage of an electrically driven compressor and a closed vapor compression cycle.

Unspayed female dogs can have their first heat cycle anywhere between 6 and 15 months of age. During heat, which happens every six months or so and lasts a few weeks, your dog can get pregnant.

We finished last month's column on life cycle costs for water heating with a 50-gal. propane tank-type water heater (July, pg. 32). The reason behind this discussion is to explain why it made sense ...

Nearly as important as a mare having a foal is getting her bred back to have next year’s baby. Breeding on foal heat is an old management strategy aimed at doing just that. It is the first heat cycle ...

A heat pump functions as a typical air conditioning system in the cooling mode — absorbing heat from indoors and rejecting it outdoors. In heating mode, the coils reverse their functions. The outdoor ...

Researchers say that cascaded organic Rankine cycle systems could improve the way in which environmentally-friendly power is generated from waste heat. A team from City, University of London's ...