In New England, where we work, GSHPs can have total heating and cooling operating cost for houses with fuel oil, propane, or electric resistance heating that is as much as 70% lower than the ...

Electric resistance heating is considered 100% energy efficient in the sense that all the incoming electric energy is converted to heat. Well it doesn’t get any better than 100% efficiency, right?

Let’s take a step back and discuss the issues. Back in the late 1980s and early 1990s, the government pushed for better efficiency, and heat pumps were targeted due to part-load winter efficiency.

Also, a heat-pump hydronic systems cost about twice as much as forced-air furnace systems, a cost that will take years to recoup in energy savings, even at today's fossil-fuel prices.

Heat pumps can save two-thirds on a resistance-heated house. The saving is a bit less from oil, but that just mean it takes a bit longer to pay off the cost of the conversion.

Typical COP values for heat pumps lie in the range of 3 to 6, indicating that 3 to 6 units of heat are created from each unit of electricity used. A year-round average COP of 3-4 is common for ...

But the real heat resistance is in the fibers themselves. Most wildland fire gear is made of several common types of FR blends, such as Sigma, TecaSafe or Synergy.

Resistance Furnace Melting Resistance furnaces typically use a closed electrical circuit of wound or patterned wire in the walls of the furnace which, through resistance creates heat when a current is ...