Flagro FRHR-100PQD Radiant Heater
Quick Quote Request
Buy Direct & Save
"*" indicates required fields
The Flagro FRHR-100PQD 90,000 BTU Propane Radiant Heater provides targeted heating for indoor construction projects, renovations, and commercial maintenance areas with proper ventilation. Its heavy-duty, stackable design makes transportation and storage convenient.
Key Specifications:
- Heating Capacity: 90,000 BTU/hr
- Fuel: Vapor Propane Only
- Consumption: 5 lbs/hr
- Ignition: Piezo Ignition
- Thermostat: Built-In
- Gas Inlet: 3/8″ Male Quick Disconnect
- Weight: 47 lbs
- Dimensions: 16″ × 16″ × 33″
Optional Accessory: FRHP-101600LP propane hose and regulator assembly (sold separately).
Nationwide shipping available. Contact us for pricing and availability.
The Flagro FRHR-100PQD 90,000 BTU Propane Radiant Heater delivers powerful, targeted heating for construction sites, building renovations, industrial maintenance, and temporary commercial heating applications. Designed to warm nearby people, equipment, and surfaces directly, this portable propane heater is especially useful in drafty work areas where conventional forced-air heating may be less effective.
The FRHR-100PQD features a built-in thermostat, piezo ignition, and a heavy-duty steel frame designed for demanding construction environments. Its compact, stackable construction makes transporting and storing multiple heaters convenient for contractors and commercial equipment operators.
Unlike the standard FRHR-100P, the FRHR-100PQD features a 3/8-inch male quick-disconnect propane inlet, allowing connection to a compatible gas supply using an approved hose and regulator assembly.
The heater weighs approximately 47 pounds and requires no electric blower or conventional air filter.
Important: The FRHR-100PQD operates on propane only. It is designed for properly ventilated indoor construction applications and is not approved for residential or outdoor use.
Key Features of the Flagro FRHR-100PQD
- 90,000 BTU/hr Heating Capacity: Provides targeted radiant heat for commercial construction applications.
- Propane-Fired Operation: Designed specifically for vapor propane.
- Radiant Heating Technology: Transfers heat directly to nearby people and surfaces instead of relying on forced-air circulation.
- Built-In Thermostat: Controls burner operation according to the selected temperature setting.
- Piezo Ignition: Convenient manual ignition of the pilot burner.
- Quick-Disconnect Gas Connection: Includes a 3/8-inch male propane quick-disconnect fitting.
- Stackable Construction: Helps reduce storage space when transporting or storing multiple heaters.
- 47-Pound Design: Portable construction for commercial worksites.
- Heavy-Duty Frame: Designed to withstand frequent commercial handling.
- Recessed Controls: Helps protect operating components from accidental damage.
- Filterless Design: No conventional air filter to replace or clean.
- Tip-Over Safety Switch: Helps prevent burner operation when the heater is tipped or improperly positioned.
- cETLus Certification: Manufacturer-listed safety approval for the specified construction heater.
How Radiant Heating Works
The Flagro FRHR-100PQD uses propane-fired radiant heating to deliver warmth directly to nearby people and surrounding surfaces.
Unlike forced-air heaters that primarily move heated air through a workspace, radiant heaters transfer heat to objects within their effective heating area.
This makes radiant heat useful for applications such as construction and finishing work, especially in drafty areas where moving air can reduce the effectiveness of conventional space heating.
The FRHR-100PQD does not require an electric blower or ducting system.
However, because it is an unvented gas-fired construction heater, the unit must be installed with adequate fresh-air ventilation.
Common Applications for the Flagro FRHR-100PQD
Construction Site Heating
Commercial construction sites frequently need temporary heating during colder weather.
The FRHR-100PQD provides portable radiant heat for suitable indoor construction work areas.
Typical applications include:
- Building construction and renovations
- Temporary indoor work areas
- Construction finishing projects
- Maintenance and repair operations
- Commercial building alterations
- Emergency construction heating
All installations must comply with the manufacturer’s ventilation, clearance, and fuel-supply requirements.
Workshops and Industrial Maintenance
Industrial workshops and commercial maintenance areas may require localized heating during winter conditions or temporary HVAC interruptions.
The FRHR-100PQD can provide radiant heat to appropriate construction and maintenance areas where propane-fired construction heaters are permitted.
The stackable frame is particularly convenient when several units need to be transported between projects.
Warehouses Under Construction or Renovation
Large commercial buildings may have cold work areas before permanent heating systems become operational.
The FRHR-100PQD offers a portable heating option for properly ventilated warehouse construction, renovation, and repair projects.
The heater should not be treated as an unrestricted permanent indoor space heater.
Temporary Commercial Heating
The FRHR-100PQD is intended primarily for temporary heating during construction, building alterations, repairs, and emergencies.
Before selecting this heater for a particular enclosure, confirm that the intended use complies with Flagro’s operating manual and local fire-safety requirements.
Explore Commercial Heating Applications
Flagro FRHR-100PQD Technical Specifications
| Specification | Flagro FRHR-100PQD |
|---|---|
| Model | FRHR-100PQD |
| 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 Propane Supply Pressure | 11″–14″ W.C. |
| Gas Inlet | 3/8″ Male Quick Disconnect |
| Ignition | Piezo Ignition |
| Thermostat | Built-In |
| Air Filter | Not Required |
| Frame | Heavy-Duty, Stackable |
| Controls | Recessed |
| Tip-Over Protection | Yes |
| Length | 16″ |
| Width | 16″ |
| Height | 33″ |
| Weight | 47 lbs |
| Hose and Regulator | Not Included |
| Compatible Optional Hose Kit | FRHP-101600LP |
| Certification | cETLus |
| Intended Operation | Indoor Construction Use with Ventilation |
Specifications reflect Flagro’s FRHR-100PQD product information and operating instructions. Verify current equipment nameplate ratings and installation requirements before operation.
Propane Fuel Requirements
The Flagro FRHR-100PQD operates exclusively on vapor propane.
The manufacturer specifies a gas supply pressure range of 11 to 14 inches water column, with a published manifold pressure of 10 inches water column.
The heater features a 3/8-inch male quick-disconnect inlet.
A compatible propane supply, approved hose assembly, and properly sized regulator are required.
Propane Consumption
The manufacturer’s published propane consumption is approximately 5 pounds per hour at rated output.
Actual fuel consumption over time depends on burner operation and thermostat cycling.
Propane supply capacity must be sufficient to maintain the manufacturer’s required fuel pressure during operation.
Optional Propane Hose and Regulator Assembly
Flagro FRHP-101600LP Hose Assembly
Flagro lists the FRHP-101600LP as an accessory for the FRHR-100PQD.
This assembly includes a compatible propane hose and regulator arrangement for the heater’s quick-disconnect connection.
Manufacturer accessory information describes a 50-foot hose assembly with a quick-disconnect connection and regulator.
Manufacturer Part Number: FRHP-101600LP
The hose and regulator are not included with the standard FRHR-100PQD heater.
Contact Climate Control Solutions for compatible hose accessories, pricing, and availability.
Browse Commercial HVAC Accessories
Built-In Thermostatic Control
The FRHR-100PQD includes a built-in thermostat that regulates burner operation.
The operator selects the temperature setting using the heater’s control knob.
As temperatures change, the thermostat cycles the main burner according to the control setting.
The heater also features piezo ignition for lighting the pilot burner.
Always follow the manufacturer’s lighting and shutdown instructions.
Compact, Stackable Construction
The FRHR-100PQD is designed for portable commercial heating.
Its heavy-duty frame and compact dimensions allow multiple heaters to be stacked for storage and transportation.
The heater weighs approximately 47 pounds, making it practical to move between suitable jobsite locations.
Recessed controls help reduce the chance of equipment damage during handling.
The filterless design also reduces the number of routine maintenance components compared with forced-air heating equipment.
The heater must still be inspected, cleaned, and maintained according to Flagro’s instructions.
Safety and Ventilation Requirements
The FRHR-100PQD is an unvented propane construction heater. Correct ventilation and installation are essential.
Fresh-Air Ventilation
Flagro’s operating manual requires a minimum of 1 square inch of fresh-air opening per 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 installation instructions and applicable codes.
Minimum Clearances to Combustibles
| Location | Manufacturer Minimum Clearance |
|---|---|
| Above Heater | 48 inches |
| Sides | 30 inches |
| Bottom | 0 inches |
Propane Cylinder Placement
Flagro’s operating manual states that the heater must be located at least 20 feet from the propane cylinder and specifies a minimum 100-pound cylinder capacity for the described installation.
All fuel connections must be checked for leaks using an approved leak-detection method.
Additional Safety Requirements
- Operate only in manufacturer-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.
- Keep combustible materials and flammable vapors away.
- Maintain required clearances.
- Place the heater upright on a flat, level surface.
- Inspect fuel hoses and connections before operation.
- Never bypass the tip-over safety switch or other protective components.
- Follow all local fire, fuel-gas, and building requirements.
Because the heater produces combustion gases, it is not suitable for sealed or inadequately ventilated spaces.
Why Choose the Flagro FRHR-100PQD?
The Flagro FRHR-100PQD combines 90,000 BTU/hr of radiant heating with compact portability and a quick-disconnect propane connection.
Its integrated thermostat, piezo ignition, filterless construction, recessed controls, and stackable frame make it useful for commercial contractors requiring reliable temporary heating equipment.
The quick-disconnect design distinguishes the FRHR-100PQD from the standard FRHR-100P configuration.
Compare Other Flagro Radiant Heaters
Climate Control Solutions supplies additional Flagro radiant heating equipment for different fuel connection requirements.
- Flagro FRHR-100P: 90,000 BTU propane radiant heater with a conventional flare-style gas connection and manufacturer-supplied hose/regulator package.
- Flagro FRHR-100N: 90,000 BTU natural gas radiant heater for installations with a suitable natural gas supply.
- Flagro FRHR-100PQD: 90,000 BTU propane model with quick-disconnect inlet; compatible hose and regulator sold separately.
Explore Commercial Heating Solutions
Frequently Asked Questions About the Flagro FRHR-100PQD
How much heat does the FRHR-100PQD produce?
The Flagro FRHR-100PQD provides 90,000 BTU/hr of radiant heating capacity.
Is the FRHR-100PQD dual-fuel?
No. The FRHR-100PQD is designed for propane only. Flagro sells a separate FRHR-100N natural gas model.
What does PQD mean?
The PQD model features a quick-disconnect propane gas inlet rather than the conventional gas connection used on the standard FRHR-100P.
Does the FRHR-100PQD include a hose and regulator?
No. The manufacturer lists the hose and regulator separately. The FRHP-101600LP is a compatible accessory.
Does it have a thermostat?
Yes. The heater includes built-in thermostatic control.
Does it require electricity?
The FRHR-100PQD uses a propane-fired radiant heating system with piezo ignition and does not require an electric blower.
How much propane does the heater consume?
Flagro publishes approximately 5 pounds per hour at rated output.
What is the difference between the FRHR-100P and FRHR-100PQD?
Both are propane radiant heaters rated at 90,000 BTU/hr. The standard FRHR-100P uses a conventional flare-style inlet and is listed with a hose/regulator package, while the FRHR-100PQD uses a quick-disconnect inlet with the hose and regulator sold separately.
Is the FRHR-100PQD approved for outdoor use?
No. Flagro’s operating manual identifies it as an indoor construction heater and instructs users to protect it from rain and water exposure.
Can the heater be used indoors?
Yes, for the approved indoor construction applications described in the manufacturer’s operating manual, provided required ventilation, fuel-supply, clearance, and safety conditions are satisfied.
Is the FRHR-100PQD stackable?
Yes. Its heavy-duty frame is designed to allow convenient stacking for equipment storage and transportation.
How much does it weigh?
The heater weighs approximately 47 pounds.
Request a Quote for the Flagro FRHR-100PQD
Climate Control Solutions supplies Flagro radiant heaters, indirect-fired heaters, direct-fired construction heaters, and commercial temporary heating equipment nationwide.
Whether you need one FRHR-100PQD for a construction project or multiple radiant heaters for a commercial application, our team can assist with equipment selection, propane connections, compatible accessories, and shipping arrangements.
Contact Climate Control Solutions for current pricing and availability.
Phone: (800) 633-8711
Email: [email protected]
Trusted by Clients for Exceptional Service
Looking For Multiple Units?
Contact us using the button below and we can help you get accurate pricing for your bulk orders.
Top-Quality Brands for Superior Climate Control
At Climate Control Solutions, we prioritize quality when it comes to spot coolers, portable heat pumps, and evaporative coolers. That’s why we collaborate with some of the industry’s most respected brands to offer you the finest products. Our selection features renowned names like Airrex USA, Big Ass Fans, Cajun Kool, Cool Boss, Flagro, and Master—brands celebrated for their excellence, innovation, and durability.
