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ST 800 Indoor Propane Heater


One-of-a-kind patent-pending, safe indoor propane heater with the a low fuel consumption rate. Onboard continuous carbon monoxide monitoring, extremely low emissions, can operate up to 8 hours continuously on 20lb LP cylinders. Made in the USA, ships with 24 hours. Multi-unit discounts available, please email info@thermalflowtech.com for a custom quote.


  • Additional shipping charges may apply based on your location and dock availability.
  • In stock and available to ship within 24 to 48 hours.


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If you’re looking for a safe indoor propane heater, The SleepTight 800 Indoor 82,000 BTU Heater has an abundance of features, including:

• Setup in as little as 5 minutes
• 30-60
• No cumbersome ductwork or circuit splitters required

• No direct outdoor access necessary
• Uses single 110/120 VAC outlet for operation
• Transports easily to treatment areas by a single operator
• Easily moves in elevators, narrow hallways, and stairways
• Equipment requires minimal operator training
• Up to 8 hours of continuous operation on two standard 20#
propane tanks

• OMNI certified to ANSI Z83.7 for US and
• System uses digital thermostat to maintain
desired target temperature
• Proven combustion technology
• Multiple integrated safety sensors
• Continuous CO and temperature monitoring and integral fresh air makeup system to ensure that you have a certified safe indoor propane heater

Compact in size and readily transports through small elevators and narrow hallways. Using less than 3.5 amps, this unit plugs into a single 110/120 VAC outlet and provides up to 80,000 BTU/HR of heat capacity. The heater utilizes standard 20-LB. propane tanks, the same tanks used on home BBQ grills. The portable indoor propane heater is equal to 23.4 kW of comparable electric heaters, and its recirculation Digital temperature controls make setting the target temperature simple and safe. Automatic operation allows the system to hold the desired temperature range in the heated space.

This safe indoor propane heater has built-in temperature, airflow, and flame monitoring. Continuous Carbon Monoxide monitoring provides fast system shut down in the event of elevated CO levels in the treatment area. Includes: (1) Fresh Air Fan Module, (1) 25′ Gas Hose, and (1) 2 Tank Manifold

• Designed and certified to operate inside indoor spaces
• 82,000 BTU capacity using a single 120VAC outlet
• No searching for multiple electrical circuits
• No need for extension cords running everywhere
• No cumbersome ductwork
• Low fuel consumption due recirculating design

PLEASE NOTE: Power requirements are (1) 15 amp circuit breaker/standard wall outlet. Heater requires (2) 20lb propane cylinders. This heater is for indoor use only.

If you are looking for portable outdoor industrial propane heater, please click here.


Additional information

Weight 115 lbs
Dimensions 32 × 21 × 49 in

Product Specifications

800 Recirculating SpecDownload Spec Sheet


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