Dust loves warm, hidden places, and radiators or heaters are perfect for that. Over time, dust and fluff build up behind and between the fins. That layer acts like a blanket, stopping heat from moving into the room as easily.
By gently vacuuming or wiping behind and around heaters a few times a year, you remove that barrier. The heater can then warm the air properly, meaning it doesn’t have to run as long or as hard to reach a comfortable temperature.
Cleaner heaters also reduce burning dust smells when you first switch them on after a while. Less dust in these areas can help with allergies too.
It’s not a glamorous job, but it’s a quick one. A few minutes with a vacuum attachment or duster can quietly improve comfort and efficiency.