Frost Fighter IDH400QR Indirect Fired Heater - 400,000 BTU/h, Dual Fuel, Ultra-Quiet Operation, Long Duct Runs, High-Efficiency, CSA Cert Type:16" Single 25-Ft Supply Duct + 16" Single 25-Ft Return Duct + Thermostat with 25-Ft Cord Seamless Integration Cleanflow supports safer utility

Frost Fighter IDH400QR Indirect Fired Heater 400,000 BTU h, Dual Fuel, Ultra Quiet Operation, Long Duct Runs, High Efficiency, CSA Cert Type:16" Single 25 Ft Supply Duct + 16" Single 25 Ft Return Duct + Thermostat with 25 Ft Cord Seamless Integration Cleanflow supports safer utility Seamless Integration Boots with chemical resistant uppers that handle pathogens 000 BTU indirect fired heater delivers the clean 8″ WC (LP) Electrical Power 120 V 15 A 60 Hz 120 V 15 A 60 Hz Noise Level 74 dB(A) @ 15 ft 74 dB(A) @ 15 ft Dimensions (L×W×H) 72″ × 30″ × 45″ 72″ × 30″ × 45″ Weight (Dry) 520 lb 510 lb Return Duct Compatible ✔️ Yes ✔️ Yes