Heat pumps have always provided an efficient way to warm and cool buildings, but they've come a long way in recent decades. Today's equipment is more versatile, works well in a wider range of locations, and costs substantially less to operate.Efficiency
The U.S. government began requiring heat pumps to have a seasonal energy efficiency rating of at least 10 in 1992. It increased this number to 13 in 2006 and 14 in 2015. Consequently, modern systems must produce much more warmth for every watt of power they consume.
Climate
At one time, it was only possible to use costly ground-source heat pumps in northern locations. They require excavation and a fairly large lot. Air-source equipment has evolved and now works well at lower temperatures. This makes today's heat pump technology more affordable in cold climates.
Components
In recent times, manufacturers have introduced fan motors that can run at more than one speed. This improvement helps the equipment last longer while consuming less electricity. The optimal fan speed also enhances indoor comfort.
This HVAC system still doesn't work as well at sub-zero temperatures; there's very little heat to extract from the air. Fortunately, some modern units feature efficient backup heating elements that burn oil or natural gas. Certain models also have scroll compressors. They produce significantly more warmth and less noise than piston-based systems.
Controls
While older models only have traditional wall-mounted panels, some of today's units feature wireless remote controls. Others integrate with home automation systems or wi-fi and allow people to change settings using software on mobile devices and/or computers.
The bottom line is that the latest heat pumps are more efficient and suitable for use in many different climates. Some models also generate less noise. Nonetheless, older heat pumps still offer an economical, eco-friendly source of warmth and air conditioning.