Flagro FRHR-100P Radiant Heater
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The Flagro FRHR-100P 90,000 BTU Propane Radiant Heater provides targeted heating for construction sites, building renovations, and properly ventilated indoor commercial work areas. Its built-in thermostat, piezo ignition, and stackable frame make it a practical temporary heating solution.
Key Specifications:
- Heating: 90,000 BTU/hr
- Fuel: Vapor Propane
- Consumption: 5 lbs/hr
- Thermostat: Built-In
- Ignition: Piezo
- Electrical Power: Not Required
- Gas Inlet: 3/8″ SAE Male Flare
- Propane Hose: 20′ Included
- Regulator: Single-Stage, Included
- Weight: 47 lbs
Features: Filterless design, recessed controls, tip-over protection, and stackable construction.
Nationwide shipping available. Contact Climate Control Solutions for pricing and availability.
The Flagro FRHR-100P 90,000 BTU Propane Radiant Heater provides reliable, targeted heating for construction sites, building renovations, industrial maintenance, and temporary commercial heating applications. Designed to warm nearby people and surfaces directly, this propane-fired radiant heater is ideal for properly ventilated indoor construction environments where conventional forced-air heating may be less effective.
The FRHR-100P delivers 90,000 BTU/hr of heating capacity and features a built-in thermostat for convenient temperature control. Its piezo ignition system allows straightforward burner ignition without requiring an external electrical connection.
A major advantage of the FRHR-100P is its included 20-foot propane hose and single-stage regulator, providing the necessary connection accessories for an appropriately sized propane supply.
With a compact, stackable frame, recessed controls, and a weight of approximately 47 pounds, the Flagro FRHR-100P is designed for convenient transportation, storage, and temporary construction heating.
Key Features of the Flagro FRHR-100P
- 90,000 BTU/hr Heating Capacity: Delivers targeted radiant heat for commercial construction and maintenance applications.
- Propane-Fired Operation: Designed specifically for vapor propane.
- Radiant Heating Technology: Warms nearby people and surfaces without relying on forced-air circulation.
- Built-In Thermostat: Controls burner operation to help maintain the selected temperature.
- Piezo Ignition: Convenient ignition system for lighting the pilot burner.
- No Electricity Required: Operates without an electrical connection or powered blower.
- 20-Foot Propane Hose Included: Provides flexibility when connecting to a compatible propane supply.
- Single-Stage Regulator Included: Supplied with a POL connection.
- Heavy-Duty Stackable Frame: Simplifies transportation and storage of multiple heaters.
- Lightweight Construction: Weighs approximately 47 pounds.
- Recessed Controls: Helps protect operating components during commercial handling.
- Filterless Design: No conventional air filter to clean or replace.
- Tip-Over Safety Switch: Helps prevent operation when the heater is improperly positioned.
- cETLus Listed: Manufacturer-listed safety certification.
Radiant Heating for Construction Applications
The Flagro FRHR-100P uses radiant heating technology to transfer warmth directly to surrounding people and objects.
Unlike conventional forced-air heaters that rely on a blower to circulate heated air, the FRHR-100P provides radiant heat without a powered fan.
This makes it useful for localized construction heating applications where airflow and drafts can affect the performance of traditional forced-air equipment.
Benefits of Radiant Heating
- Provides targeted heat to nearby people and surfaces
- Operates without electricity
- Does not require an air-distribution blower
- Compact design for temporary jobsite use
- Built-in thermostat for temperature control
- Low-maintenance, filterless construction
The FRHR-100P is an unvented propane construction heater. Combustion products enter the surrounding air, making adequate ventilation essential.
Common Applications for the Flagro FRHR-100P
Construction Site Heating
The FRHR-100P is designed for temporary heating during construction, building alterations, and repair projects.
Applications include:
- Commercial construction sites
- Building renovations
- Winter construction work
- Temporary indoor work areas
- Building maintenance and repairs
- Construction-related emergency heating
The heater must be operated in approved, adequately ventilated locations.
Industrial Maintenance
Industrial maintenance and repair projects may require localized supplemental heat during colder temperatures.
The FRHR-100P provides radiant heating for appropriate work areas where unvented propane construction heaters are permitted.
Warehouses Under Construction or Renovation
Large commercial buildings may experience cold conditions before permanent heating equipment is installed or during renovation projects.
The FRHR-100P can provide supplemental radiant heat in suitable, ventilated construction areas.
It should not be treated as a permanent indoor heating system or used in applications prohibited by Flagro’s operating manual.
Temporary Commercial Heating
The FRHR-100P is suitable for approved temporary heating during construction, alterations, repairs, and emergencies.
Its compact design is particularly convenient for contractors who need to transport equipment between multiple project locations.
Explore Commercial Heating Applications
Flagro FRHR-100P Technical Specifications
| Specification | Flagro FRHR-100P |
|---|---|
| Model Number | FRHR-100P |
| Equipment Type | Propane Radiant Construction Heater |
| Heating Capacity | 90,000 BTU/hr |
| Fuel Type | Vapor Propane |
| Fuel Consumption | 5 lbs/hr |
| Manifold Pressure | 10″ W.C. |
| Required Inlet Pressure | 11–14″ W.C. |
| Gas Inlet | 3/8″ SAE Male Flare |
| Thermostat | Built-In |
| Ignition | Piezo Ignition |
| Electrical Supply | Not Required |
| Powered Blower | Not Required |
| Propane Hose | 20 Feet, Included |
| Regulator | Single-Stage, Included |
| Fuel Connection | POL |
| Air Filter | Not Required |
| Tip-Over Protection | Yes |
| Frame | Heavy-Duty, Stackable |
| Length | 16″ |
| Width | 16″ |
| Height | 35″ |
| Weight | 47 lbs |
| Certification | cETLus |
Specifications reflect Flagro’s published FRHR-100P product information and operating manual. Confirm current equipment nameplate ratings and installation requirements before operation.
Propane Fuel Requirements
The Flagro FRHR-100P operates on vapor propane.
The manufacturer specifies a 90,000 BTU/hr heating capacity with a published fuel consumption of approximately 5 pounds of propane per hour.
Fuel Specifications
| Specification | Value |
|---|---|
| Fuel Type | Vapor Propane |
| Fuel Consumption | 5 lbs/hr |
| Manifold Pressure | 10″ W.C. |
| Supply Pressure | 11–14″ W.C. |
| Connection | 3/8″ SAE Male Flare |
An appropriately sized propane cylinder or approved supply arrangement is required.
Propane vaporization capacity and available fuel pressure can be affected by cylinder size, ambient temperature, and remaining fuel.
All fuel connections must follow Flagro’s operating instructions and applicable fuel-gas regulations.
Included 20-Foot Hose and Regulator
The FRHR-100P includes a propane hose and regulator package.
Included Equipment
- 20-foot propane hose
- Single-stage regulator
- POL fuel connection
The hose and regulator are designed for compatible propane supply arrangements.
The manufacturer requires fuel connections to be inspected and checked for leaks before operation.
Unlike the FRHR-100PQD quick-disconnect model, the standard FRHR-100P includes its propane hose and regulator.
Built-In Thermostat and Piezo Ignition
The Flagro FRHR-100P features a built-in thermostat for controlling burner operation.
The thermostat cycles the main burner according to the selected temperature setting.
The heater uses a piezo ignition system to light the pilot burner.
Once properly started, the main burner operates according to the thermostat and gas controls.
The ignition procedure must follow the manufacturer’s operating instructions.
No Electricity Required
The FRHR-100P does not require an external electrical connection.
Its propane-fired radiant heating system operates without a powered blower.
This makes it useful for suitable temporary construction applications where electrical power may be limited.
The heater still requires an approved propane supply and adequate combustion ventilation.
Stackable, Portable Construction
The FRHR-100P features a rugged frame designed for commercial handling.
Its stackable construction allows multiple heaters to be stored and transported efficiently.
The manufacturer lists overall dimensions of:
- Length: 16 inches
- Width: 16 inches
- Height: 35 inches
- Weight: 47 pounds
Recessed controls help protect operating components during transportation and storage.
The heater’s filterless design also reduces the need for routine filter servicing.
Safety and Ventilation Requirements
The Flagro FRHR-100P is an unvented propane construction heater.
It must be operated only in approved indoor construction applications with adequate fresh-air ventilation.
Fresh-Air Requirements
Flagro requires 1 square inch of fresh-air opening for every 1,000 BTU/hr of heating capacity.
For this 90,000 BTU heater, that corresponds to at least 90 square inches of fresh-air opening, subject to the manufacturer’s complete instructions and applicable regulations.
Minimum Clearances to Combustibles
| Location | Minimum Clearance |
|---|---|
| Above Heater | 48 Inches |
| Sides | 30 Inches |
| Bottom | 0 Inches |
Propane Cylinder Placement
The manufacturer’s operating manual requires the heater to be positioned at least 20 feet from the propane cylinder.
The manual also specifies a minimum 100-pound propane cylinder capacity for the described supply arrangement.
Additional Safety Requirements
- Operate only in approved indoor construction applications.
- Provide adequate fresh-air ventilation.
- Do not use in homes or recreational vehicles.
- Protect the heater from rain, water spray, and dripping water.
- Maintain required clearances from combustible materials.
- Keep the heater upright on a stable, level surface.
- Inspect the propane hose and regulator before operation.
- Check gas connections for leaks using an approved method.
- Keep burner components clean and free from dust.
- Never bypass the tip-over safety switch.
- Follow all applicable fire, building, and fuel-gas requirements.
The heater is not intended for sealed or inadequately ventilated spaces.
FRHR-100P vs. FRHR-100PQD
Flagro offers two propane configurations of its 90,000 BTU radiant heater.
| Feature | FRHR-100P | FRHR-100PQD |
|---|---|---|
| Heating Capacity | 90,000 BTU | 90,000 BTU |
| Fuel | Propane | Propane |
| Thermostat | Built-In | Built-In |
| Ignition | Piezo | Piezo |
| Gas Connection | 3/8″ SAE Male Flare | 3/8″ Male Quick Disconnect |
| Hose and Regulator | Included | Sold Separately |
| Weight | 47 lbs | 47 lbs |
The FRHR-100P is particularly convenient when an included propane hose and regulator are preferred.
The FRHR-100PQD provides an alternative quick-disconnect arrangement for compatible installations.
Frequently Asked Questions About the Flagro FRHR-100P
How much heat does the Flagro FRHR-100P produce?
The heater delivers 90,000 BTU/hr of radiant heating capacity.
Is the FRHR-100P dual-fuel?
No. The FRHR-100P operates on vapor propane. Flagro offers the separate FRHR-100N for natural gas.
Does the FRHR-100P include a propane hose?
Yes. A 20-foot propane hose is included.
Is a regulator included?
Yes. The standard FRHR-100P includes a single-stage regulator with a POL connection.
Does the heater have a thermostat?
Yes. The heater features built-in thermostatic control.
Does it require electricity?
No. The FRHR-100P uses piezo ignition and does not require a powered blower or electrical connection.
How much propane does the heater consume?
Flagro lists approximately 5 pounds of propane per hour at rated operation.
What is the difference between the FRHR-100P and FRHR-100PQD?
The FRHR-100P includes a conventional flare-style gas connection and a 20-foot hose/regulator package. The FRHR-100PQD uses a quick-disconnect gas inlet, with its hose and regulator sold separately.
Is the FRHR-100P stackable?
Yes. Its heavy-duty frame is designed for stackable storage and transportation.
Can the FRHR-100P be used outdoors?
Flagro’s operating manual specifies indoor construction use and requires protection from rain and water exposure. It should not be marketed as a general-purpose outdoor patio or event heater.
Can it be used inside a construction building?
Yes, when the use is permitted by the manufacturer and adequate ventilation, combustible clearances, fuel connections, and other safety requirements are satisfied.
How much does the FRHR-100P weigh?
The manufacturer’s published weight is approximately 47 pounds.
Request a Quote for the Flagro FRHR-100P
Climate Control Solutions supplies Flagro radiant heaters, propane construction heaters, and commercial temporary heating equipment nationwide.
For individual heaters or larger commercial heating projects, Climate Control Solutions can assist with equipment selection, compatible propane accessories, and shipping arrangements.
Contact Climate Control Solutions for current pricing and availability.
Phone: (800) 633-8711
Email: [email protected]
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