My forced hot air furnace is directly next to my home theater room and it is behind louvered doors (for airflow), so it can get pretty loud when it turns on it. I’m looking for some fairly cheap/easy ideas to minimize noise.
I’m not an HVAC expert, so I don’t want to take anything apart.
My blower fan is currently set to the Medium-High setting on scale that goes High, Medium-High, Medium, Low. I was thinking about lowering the fan to Medium to reduce the air velocity, which I assume would reduce noise.
Also, the main duct work coming off of the furnace is just sheet metal with zero insulation on it. I don’t want to do anything like opening it up or changing it, but I was thinking about buying something like Roxul Enerwrap to wrap around the main ducts. Would that be a good idea?