Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Electric Heat Pump is part of the Water Heaters test program at ...

A new solar-powered variable speed drive (VSD) model compatible with a wide range of water pumps has recently been launched.

Sponsored The plans would require a greater standard of building efficiency. To get there, some components — like certain levels of insulation — would be mandatory; the code would also encourage the ...