DYNA-GLO WORKHORSE SERIES 60000 BTU PORTABLE PROPANE GAS FIRED HEATERS ARE A SMART EFFICIENT HEATING SOLUTION FOR AREAS UP TO 1350 SQUARE FEET. CONTINUOUS ELECTRONIC IGNITION AND OUR EASY-CONNECT REGULATOR AND HOSE ASSEMBLY ALLOW YOU TO INSTALL AND USE YOUR HEATER IN NO TIME. CONTINUOUSLY VARIABLE HEAT SETTING FROM 30000 - 60000 BTUS AND ADJUSTABLE HEAT ANGLES ENSURE COMPLETE CONTROL OF THERMAL COMFORT. LOW PRESSURE SYSTEM ALLOWS FOR CONSISTENT BTU'S IN THE COLDEST OF TEMPERATURES. RUN TIME IN HOURS VARIES PER TANK SIZE AND HEAT SETTING FOR 20 LB. TANK 8 - 14 HRS. FOR 40 LB. TANK 16 - 28 HRS. AND FOR 100 LB. TANK 40 - 70 HRS. (LP TANK SOLD SEPARATELY).NOT FOR USE IN RESIDENTIAL LIVING AREAS OR IN INADEQUATELY VENTILATED AREAS. PROPER VENTILATION REQUIRED DURING OPERATION.