Generally, hearing strange noises from various parts of your house indicates that you should investigate them. You know, your air conditioner, your furnace, that weird basalt chest carved with unnerving frescoes you found in your attic when you moved in.
We can’t really help you with that last one, but for this blog post we’re going to focus on the furnace. Odd furnace noises are typically an indication that the system is malfunctioning in some way. Have a look below to find out more about what causes strange noises, and what you can do about them.
If your furnace isn’t heating, well, what do you even have it for? Before you have it replaced, though, you should have a professional have a look at it to make sure that it can’t be repaired. There are a lot of different factors that can impact the heating efficiency of your furnace, most of which can be taken care of by a professional technician without replacing the entire system. Have a look at some of those issues below, and the warning signs that accompany them. 
