When you’re chilly outdoors and come into your home, you expect—and deserve—to warm up thanks to plentiful hot air coming from your vents. It’s absolutely miserable to have just a trickle of warm air and be unable to get your home warm enough.
Insufficient airflow through your heating system can have a variety of causes, and it’s important to address it, because it can also cause a variety of other problems. What are those possible causes, and what heating troubles could occur because of that low airflow? We’ll lay out some details for you.
Think about last winter.
There are certain noises that after a while, are fairly easy to “tune-out.” If you live on a busy street, for example, you may get used to the noise of cars whizzing by and the honking of horns. What you should never get used to though, are noises coming from your furnace that you’ve never heard before.
With plenty of winter weather still ahead of us, we’re still going to be getting plenty of use out of our 
We are already deep in the heart of winter, so if your heater recently broke down, you’re likely tempted to just go out and buy the first one you can find that fits in your budget. However, rushing like this can be, and most likely will be, a mistake.