RobertN
Super Member
I posted this in another thread, but will add here too. At least in Calif, the 30' recommendation has been changed to 100'.
http://www.fire.ca.gov/communications/downloads/fact_sheets/DefensibleSpaceFlyer.pdf
http://www.fire.ca.gov/communications/downloads/fact_sheets/EquipmentUse.pdf
http://www.fire.ca.gov/communications/downloads/fact_sheets/Checklist.pdf
http://www.fire.ca.gov/communications/downloads/fact_sheets/DefensibleSpaceFlyer.pdf
http://www.fire.ca.gov/communications/downloads/fact_sheets/EquipmentUse.pdf
http://www.fire.ca.gov/communications/downloads/fact_sheets/Checklist.pdf
We have never had one of these firestorms, but I have trees less than 30 ft from the house..