The biggest flaw (or feature) of this system is the .
Time and
So, the next time you pull off a heater cover to clean out dust bunnies, take a second to find that tiny two-character stamp. It won't tell you the weather forecast, but it will tell you a story—the story of exactly when that piece of metal began its life keeping your room warm. qmark date code
. This information is essential for determining warranty status or identifying parts for repairs. Marley Engineered Products How to Locate the Date Code : Look for a grey or silver sticker The biggest flaw (or feature) of this system is the