"To determine how long a heat pump runs we use what is referred to as FLEQ hours. This stands for the 'Full Load Equivalent', which is the number of hours that the heat pump runs per year, based on its full load. Breaking it down, this means if a heat pump was running at half capacity for 2 hours that would be deemed as 1 hour of FLEQ."
"With a correctly sized heat pump installed in your home, the average number of FLEQ hours per year is 1800 hours for space heating, and then another 600 hours for hot water. If you run it within these parameters, and have regular annual services, then in general, you can expect the heat pump to last between 20 and 25 years."
"How long a heat pump lasts can also be influenced by the type of refrigerant compressor in your heat pump. Why? This is the hardest working component of a heat pump, and not all compressors are the same. The most common types of compressors used in heat pumps are either scroll compressors, rotary compressors or reciprocating compressors. Scroll compressors are often considered the better compressors for heat pumps as they have less moving parts and are often more efficient than the others."
Heat pumps have grown in popularity for home heating but remain more expensive to install than gas boilers despite the Boiler Upgrade Scheme incentive. Heat pump runtime is measured in FLEQ (Full Load Equivalent) hours, where partial-load operation is converted to full-load hours. A correctly sized heat pump typically averages 1,800 FLEQ hours for space heating plus 600 for hot water, totaling around 2,400 hours annually. Under those conditions with regular annual servicing, expected lifespan is generally 20–25 years. Lifespan is also influenced by the refrigerant compressor type, with scroll compressors often preferred for efficiency and fewer moving parts.
Read at Homebuilding
Unable to calculate read time
Collection
[
|
...
]