The Dyna-Glo Delux RMC-FA125DGD Portable 125,000 BTU Propane Forced Air Heater is designed to deliver exceptional heating performance to spaces up to 3,100 square feet. With a heating capacity ranging from 70,000 to 125,000 BTUs, this versatile heater is perfect for construction sites, workshops, and outdoor environments, ensuring you stay warm and productive no matter the conditions.