How much is spray foam insulation? ...

What is the difference between a hose down...
Answers:    about 5 dollars a can
We in recent times purchased old/used GE XL44...
If you're conversation about insulating your house near it, foam is the most expensive.

You would need to attain an estimate from an insulation company. They usually do so for free. Asking how much it costs to insulate a house is like asking how much does a pack of groceries cost..... depends on what's in it.