This heater has been holding on for 35 years, but now it’s starting to tell us something’s wrong. The issue? Overheating caused by poor airflow. When a system can’t breathe properly, it builds up heat and shuts itself down to protect itself, that’s what’s called a high-limit shutdown. Think of it like trying to run while breathing through a straw. Your body overheats… and so does your heater. In many homes, airflow wasn’t designed correctly from the start. Over time, that resistance catches up t
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This heater has been holding on for 35 years, but now it’s starting to tell us something’s wrong. The issue? Overheating caused by poor airflow. When a system can’t breathe properly, it builds up heat and shuts itself down to protect itself, that’s what’s called a high-limit shutdown. Think of it like trying to run while breathing through a straw. Your body overheats… and so does your heater. In many homes, airflow wasn’t designed correctly from the start. Over time, that resistance catches up t
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