PEERLESS PureFire PF-200 Installation, Operation & Maintenance Manual page 9

WARNING
This boiler is certified as an indoor appliance. Do not
install this boiler outdoors or locate where it will be
exposed to freezing temperatures.
WARNING
Do not install this boiler where gasoline or other
flammable liquids or vapors are stored or are in use.
WARNING
Do not install this boiler in the attic.
PREINSTALLATION
7