PatrickBaptist
Senior Member
This is my 2nd winter in my bus and I don't have a problem keeping it warm or cool, 1 inch foam board in the walls, not opened up the ceiling.
None on the floor and down to 20 it stay in the high 70s inside using just 3x 1500 watt electric heaters.
Last year I used a buddy heater and a larger LP 30k BTU propane heater.
The kids room is super easy to heat/cool, the windows are covered with 1" foam board as well.
Our health just isn't worth ruining with spray foam..... Better to just pay a little more for electric or propane.
I'm sure you can tell me how safe it is for you and all but I won't trust my children and Wife's well being to it.
Though I would throw this out there because I've not seen anyone on here talking about this.