Keeping Air Conditioning, Heatpumps & Refrigeration efficent
The one thing all AC Heat pumps and refrigeration have in common is fan coils which allow the system to work it's magic.
Fan coils pull air through them with what ever is floating around the area, road dirt, animal hair and exhaust carbons etc....
If those fan coils stay dirty and start to block which they will, the system efficiency will crash at which time you can be lossing 20% or more per meter of fan coil.
For a small house hold heat pump this could be $200 per year extra running cost per heat pump. For an office or commercial operation with lots of units or large units this can go into the thousands & 10s of thousands of $$ of extra running costs.
The units will also fail sooner meaning you then need to replace them as it's like running a car with the hand brake on or towing a truck trailer with a mini.