Euramco's RamFan UB20 Blower / Heater System provides portable, heated air where you need it. The heated air is indirectly fired through a heat exchanger and provides safe, warm breathable air (when pulled from a clean source) during cold conditions. 

The UB20 Blower / Heater delivers up to 10 hours of heat and 65,000 BTU’s from a standard 20 lb. propane tank. Weather-protected controls on the top of the heater assembly include a safety shut down feature. The shutdown feature responds to the lack of airflow and overly hot temperature conditions. The system delivers heated air up to 25 feet away with ducting. The airflow drop across the heater is approximately that of a 90-degree bend.