DYNA-GLO™ IBF10PMDG-4 10000 BTU LIQUID PROPANE BLUE FLAME VENT FREE ICE HOUSE HEATER DYNA-GLO™ WALL HEATERS ARE THE IDEAL CHOICE FOR SAFE INDOOR SUPPLEMENTAL HEATING. THIS STATE-OF-THE-ART VENT FREE TECHNOLOGY DOES NOT REQUIRE A FLUE OR CHIMNEY. THESE HEATERS ARE GREAT FOR USE IN ICEHOUSE OR LODGE. SINCE THESE HEATERS DO NOT REQUIRE ELECTRICITY TO OPERATE THEY MAKE AN EXCELLENT CHOICE FOR EVERYDAY HEATING AND EMERGENCY SITUATIONS WHEN THE POWER GOES OUT. USING BLUE FLAME HEATING TECHNOLOGY HEAT IS DISTRIBUTED SIMILAR TO YOUR CENTRAL HOME HEATING SYSTEM. THIS BLUE FLAME ICEHOUSE HEATER BURNS WITH 99.9 EFFICIENCY AND OPERATES ON PROPANE ONJLY. LOW-MED-HI VARIABLE CONTROL KNOB OFFERS THE MOST CUSTOMIZABLE HEAT SETTINGS. NOT FOR SALE IN AUSTIN & HOUSTON TEXAS MINNESOTA NEW YORK CITY CALIFORNIA OR CANADA. CHECK YOUR LOCAL CODES REGULATIONS ON INSTALLATION RESTRICTIONS AND REQUIREMENTS. MUST BE INSTALLED BY A LICENSED CONTRACTOR. PROPANE USE REQUIRES 20 OR 40-LB. TANK (NOT INCLUDED) WITH INCLUDED 10 FT. PROPANE HOSE AND REGULATOR. FEATURES UL STYLEMARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX; DEPENDABLE - IDEAL FOR DAILY SUPPLEMENTAL OR EMERGENCY USE SUCH AS POWER OUTAGES ECONOMICAL - CUT HEATING BILLS BY WARMING ONLY OCCUPIED AREAS COMFORT MANUALLY ADJUST THE HEAT SETTING TO YOUR DESIRED TEMPERATURE SAFE - BUILT-IN OXYGEN DEPLETION SENSOR (ODS) IMMEDIATELY SHUTS DOWN THE HEATER IF CARBON MONOXIDE OR LACK OF OXYGEN IS DETECTED CONVENIENT ONE CONTINUOUS PRESS OF THE BATTERY ASSISTED IGNITER MAKES IGNITION QUICK & EFFORTLESS VERSATILE - INCLUDES ALL NECESSARY HARDWARE & BRACKET FOR WALL MOUNTING UPGRADEABLE - SEPARATELY SOLD OPTIONAL WALL HEATER FAN (B2240712) DISTRIBUTES HEAT IN A QUIET YET POWERFUL WAY