Hello to all
What does bonnet capacity mean.
I have a friend that wants to replace his forced hot air system that says input 100000 btu bonnet capacity 80000 btu
I know it differs from afue but is this an 80% furnace?
Thank u for the response. You are right that it's an old furnace as you can see from the picture. I had been told exactly what u said but I wanted confirmation. Also that's a great idea about a condensing unit. But I'm still wondering what exactly does bonnet capacity actually mean. Thanks mike