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Since I'm on a roll of typing out the insulation we've used, I figured I might as well post about our heating systems too.
We have five different heating sources for our home, and someday we'll get a sixth...
Someone just asked for advice on Facebook, and I figured I should save it here so I don't need to type it again when someone asks later.
We've had just about every kind of insulation in our house. So, more than you asked for, but hopefully useful. Also, if you don't know about it, you should go to nhsaves.com and have Eversource pay for 50% of your costs - a great program, we paid $3500 and save ~$1000 a year in fuel, plus the house feels warmer. Air sealing is the most important (one reason spray foams are better; the R value of cellulose and fiberglass goes to something around 1 or 2 if there is air movement)