Flagro SH-500
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The Safe Heat SH500 500,000 BTU Dual-Fuel Direct-Fired Heater provides adjustable temporary heating for commercial construction sites, industrial maintenance projects, and properly ventilated work areas. With propane/natural gas capability, high-volume airflow, and a remote thermostat, the SH500 is designed for demanding heating applications.
Key Specifications:
- Heating Capacity: 100,000–500,000 BTU/hr
- Fuel: Propane or Natural Gas
- Airflow: 4,600 CFM
- Electrical: 120V / Single Phase
- Operating Current: Approximately 7A
- Thermostat: Remote, 25′ Cord
- Propane Consumption: Up to 5.46 gal/hr
- Natural Gas Consumption: Up to 5 therms/hr
- Dimensions: 30″ × 42″ × 24″
- Weight: 135 lbs
Features: Stainless steel burner, internal heat shield, industrial axial blower, and ductable construction.
Nationwide shipping available. Contact Climate Control Solutions for pricing and availability.
The Safe Heat SH500 500,000 BTU Dual-Fuel Direct-Fired Heater delivers powerful, adjustable temporary heating for commercial construction sites, industrial maintenance projects, building renovations, and properly ventilated work areas. Featuring a heating range of 100,000 to 500,000 BTU/hr, this portable forced-air heater is designed to meet changing heating demands in commercial and industrial environments.
Operating on propane or natural gas, the SH500 combines dual-fuel flexibility with 4,600 CFM airflow, a stainless steel burner, and a high-efficiency axial blower. Its ductable design allows heated air to be distributed through compatible ducting systems for suitable temporary heating applications.
The heater also features a remote thermostat with a 25-foot cord, a protective internal burner heat shield, and a red status indicator near the power switch.
With a portable wheeled design, rugged construction, and 120V electrical operation, the Safe Heat SH500 provides a high-capacity heating solution for demanding commercial projects.
Key Features of the Safe Heat SH500
- 100,000–500,000 BTU/hr Heating Capacity: Adjustable heating output for commercial construction and industrial applications.
- Dual-Fuel Operation: Compatible with propane or natural gas when properly configured.
- 4,600 CFM Airflow: High-volume forced-air circulation for temporary heating.
- Direct-Fired Heating: Provides high-output heat directly into the supplied airflow.
- Stainless Steel Burner: Designed for durability during demanding heating applications.
- Internal Burner Heat Shield: Helps reduce heat transfer to the outer cabinet.
- Remote Thermostat: Features a 25-foot cord for flexible temperature monitoring.
- Industrial Axial Blower: Delivers strong airflow through the heater.
- Ductable Design: Supports compatible heated-air distribution systems.
- 120V Electrical Operation: Uses single-phase electrical service.
- Red Status Indicator: Provides a visible indication of certain operating conditions.
- Portable Construction: Equipped for convenient movement and positioning.
- Commercial-Grade Design: Suitable for approved temporary construction and industrial heating applications.
Adjustable Heating from 100,000 to 500,000 BTU/hr
The Safe Heat SH500 offers a wide range of heating output to accommodate different temporary heating requirements.
Its rated operating range extends from 100,000 BTU/hr to 500,000 BTU/hr.
This adjustable capacity makes the heater useful for projects where heating demand changes throughout the day or across different stages of construction.
Potential benefits include:
- High-capacity heating for cold-weather projects
- Adjustable output for changing conditions
- Flexible use across multiple temporary heating applications
- Temperature control through a remote thermostat
- Reduced need for separate heaters with different fixed capacities
Actual heating requirements depend on outdoor temperatures, building insulation, ventilation, air infiltration, and the size of the work area.
Dual-Fuel Operation: Propane or Natural Gas
The SH500 is available for propane and natural gas operation, providing flexibility for commercial heating projects.
Propane Operation
When properly configured for propane, the SH500 provides up to 500,000 BTU/hr of heating capacity.
Published propane specifications:
- Maximum Heating Capacity: 500,000 BTU/hr
- Maximum Fuel Consumption: Approximately 5.46 gallons per hour
- Fuel Type: Vapor Propane
The heater requires a properly sized external propane supply and approved gas connections.
Natural Gas Operation
The SH500 can also operate on natural gas when correctly configured.
Published natural gas specifications:
- Maximum Heating Capacity: 500,000 BTU/hr
- Maximum Consumption: Approximately 5 therms per hour
- Fuel Type: Natural Gas
The natural gas supply must provide sufficient fuel flow and operating pressure.
Important: Propane and natural gas configurations are not interchangeable without the appropriate regulator setup and manufacturer-approved adjustments. Fuel conversion and installation must follow the applicable operating instructions.
Direct-Fired Forced-Air Heating
The Safe Heat SH500 uses direct-fired heating technology.
Its burner produces heat directly within the airflow delivered by the industrial blower.
Unlike an indirect-fired heater, the SH500 does not use a separate heat exchanger to isolate combustion exhaust from the heated air.
This design delivers high heating output but also introduces combustion products and combustion moisture into the supplied airflow.
Advantages of Direct-Fired Heating
- High heating capacity
- Adjustable heating output
- Powerful forced-air circulation
- Propane or natural gas operation
- Ductable air delivery
- Portable commercial construction
Important: Adequate fresh-air ventilation is required. The SH500 must not be used in sealed, inadequately ventilated, residential, or otherwise prohibited environments.
4,600 CFM Industrial Airflow
The SH500 provides approximately 4,600 CFM of airflow through an industrial axial blower assembly.
The manufacturer describes an enclosed fan-cooled motor designed to maintain airflow through demanding operating conditions.
The blower delivers heated air for suitable construction and industrial heating arrangements.
Ductable Air Distribution
The SH500 is designed to accommodate compatible ducting.
This allows heated air to be directed toward an appropriate work area or temporary heating zone.
Duct diameter, maximum permitted length, material temperature rating, and static-pressure limitations must follow the manufacturer’s current instructions.
Ducting should not be installed without confirming compatibility.
Remote Thermostat with 25-Foot Cord
The SH500 includes a remote thermostat arrangement with a 25-foot cord.
This provides flexibility when positioning the thermostat away from the heater.
The thermostat supports temperature-controlled heating operation in compatible applications.
Temperature settings should be selected according to the intended heating requirements and the manufacturer’s instructions.
Actual fuel usage depends on heating demand, output settings, and operating conditions.
Stainless Steel Burner and Protective Heat Shield
The Safe Heat SH500 features a stainless steel burner assembly.
The manufacturer also identifies an internal burner heat shield designed to reduce heat transfer to the external cabinet.
This construction supports operation in demanding temporary heating environments.
The outer surfaces and discharge area can still become hot during use.
Required combustible clearances and safe-handling procedures must always be observed.
Common Applications for the Safe Heat SH500
Commercial Construction Heating
The SH500 provides temporary heating for appropriate commercial construction environments.
Typical applications include:
- Winter construction projects
- Commercial building renovations
- Temporary construction work areas
- Building repair and alteration projects
- Construction-related emergency heating
- Temporary heating during HVAC installation
Industrial Maintenance and Facility Projects
Industrial maintenance work may require temporary heating during equipment shutdowns, building renovations, or cold-weather operations.
The SH500 delivers high-capacity forced-air heating for suitable, properly ventilated applications.
Concrete and Construction Material Applications
Temporary heating may be required during concrete work, masonry, or interior finishing projects.
The SH500 can support suitable projects where a direct-fired heater is permitted and the effects of combustion moisture and ventilation on materials have been evaluated.
For moisture-sensitive applications, an indirect-fired or electric heater may be more appropriate.
Temporary Commercial Work Areas
The SH500 can provide supplemental heat for properly ventilated temporary construction spaces.
Because the heater is direct-fired, it should not be represented as suitable for every warehouse, occupied event venue, or enclosed structure.
Explore Commercial Heating Applications
Safe Heat SH500 Technical Specifications
| Specification | Safe Heat SH500 |
|---|---|
| Model | SH500 / SH-500 |
| Equipment Type | Dual-Fuel Direct-Fired Portable Heater |
| Heating Capacity | 100,000–500,000 BTU/hr |
| Fuel Type | Propane or Natural Gas |
| Airflow | 4,600 CFM |
| Electrical Supply | 120V / 60Hz / Single Phase |
| Published Electrical Draw | Approximately 7A |
| Maximum Propane Consumption | Approximately 5.46 gal/hr |
| Maximum Natural Gas Consumption | Approximately 5 therms/hr |
| Burner Construction | Stainless Steel |
| Burner Heat Shield | Included |
| Blower Type | Industrial Axial |
| Thermostat | Remote, 25-Foot Cord |
| Ducting | Compatible Ducting Supported |
| Status Indicator | Red Indicator Light |
| Width | 30″ |
| Depth | 42″ |
| Height | 24″ |
| Equipment Weight | 135 lbs |
| Approximate Shipping Weight | 170 lbs |
| Certification | CSA/ETL, as Published by Distributor |
Specifications are based on published Safe Heat SH500 product information. Verify the supplied fuel configuration, electrical nameplate, approved ducting, and current installation instructions before ordering.
Electrical Requirements
The SH500 operates on 120V / 60Hz single-phase electrical power.
Published specifications identify approximately 7 amps of operating current.
The electrical supply powers the heater’s blower and electrical controls.
The heater must be connected to a compatible, properly grounded electrical source.
Electrical installation and any extension-cord use must comply with the manufacturer’s instructions.
Propane and Natural Gas Supply Requirements
The Safe Heat SH500 requires an external fuel supply.
The heater does not include a built-in propane tank.
The gas supply must be sized for the selected fuel, burner configuration, and required heating capacity.
The manufacturer’s operating instructions identify specific regulator arrangements for propane and natural gas configurations.
Fuel systems must be installed and adjusted by appropriately qualified personnel.
Gas hoses, regulators, and connection accessories should be confirmed as part of the quoted equipment package.
Portable Commercial Construction
The Safe Heat SH500 is designed for temporary heating applications where equipment may need to be transported between projects.
Its published dimensions are:
- Width: 30 inches
- Depth: 42 inches
- Height: 24 inches
- Equipment Weight: 135 pounds
Portable construction helps simplify positioning and transportation on suitable surfaces.
The heater must be operated on a stable surface and transported using appropriate handling procedures.
Safety and Ventilation Requirements
The Safe Heat SH500 is a direct-fired gas heater.
Combustion products enter the heated airflow, making proper ventilation and combustion-air management essential.
Important safety considerations include:
- Operate only in approved commercial and construction heating applications.
- Provide adequate fresh-air ventilation.
- Do not use in sealed or inadequately ventilated spaces.
- Use the correct propane or natural gas configuration.
- Verify appropriate fuel pressure and connections.
- Inspect gas hoses, regulators, and fittings before operation.
- Maintain required clearances from combustible materials.
- Keep the air inlet and heated-air discharge unobstructed.
- Use only manufacturer-approved ducting configurations.
- Connect to properly grounded electrical power.
- Follow required burner shutdown and cooling procedures.
- Follow applicable fire, mechanical, electrical, and fuel-gas regulations.
The SH500 is not intended for residential or recreational vehicle heating.
Why Choose the Safe Heat SH500?
The Safe Heat SH500 combines 500,000 BTU/hr maximum heating capacity, propane/natural gas compatibility, and 4,600 CFM airflow in a portable direct-fired heater.
Its adjustable heating output, remote thermostat, stainless steel burner, and ductable design provide flexibility for demanding commercial heating applications.
For contractors requiring high-capacity temporary heat, the SH500 offers a practical heating solution when appropriate fuel supplies, ventilation, and electrical service are available.
Frequently Asked Questions About the Safe Heat SH500
How much heat does the Safe Heat SH500 produce?
The SH500 has an adjustable heating range of 100,000–500,000 BTU/hr.
Does the SH500 operate on propane or natural gas?
The heater supports propane or natural gas when configured according to the manufacturer’s instructions.
How much airflow does the SH500 provide?
The heater delivers approximately 4,600 CFM.
What electrical supply is required?
The SH500 operates on 120V, 60Hz, single-phase electrical power. Published specifications identify approximately 7 amps of operating current.
Does the SH500 include a thermostat?
Published product information describes a remote thermostat with a 25-foot cord. Package contents should be confirmed when ordering.
How much propane does the heater use?
Maximum published propane consumption is approximately 5.46 gallons per hour.
How much natural gas does it consume?
Published maximum natural gas consumption is approximately 5 therms per hour.
Can the heater be connected to ducting?
Yes. The SH500 is designed for compatible ducting, but the approved diameter and length must be confirmed for the installation.
Does the SH500 require an external fuel supply?
Yes. The heater requires a compatible propane or natural gas supply.
Does the SH500 have an indirect-fired heat exchanger?
No. The SH500 is a direct-fired heater. Combustion products enter the supplied heated air.
Can the heater be used inside commercial buildings?
Only in approved applications with adequate ventilation, appropriate fuel connections, and compliance with manufacturer instructions and local regulations.
How much does the SH500 weigh?
The published equipment weight is 135 pounds, with an approximate shipping weight of 170 pounds.
Request a Quote for the Safe Heat SH500
Climate Control Solutions supplies direct-fired commercial heaters, portable construction heating equipment, and temporary HVAC solutions nationwide.
Equipment selection assistance is available for commercial heating capacity, fuel requirements, compatible ducting, and freight arrangements.
Contact Climate Control Solutions for current pricing and availability.
Phone: (800) 633-8711
Email: [email protected]
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