Product Description
Buy the Flagro F-375 Direct-Fired Propane Heater – 375,000 BTU of Reliable Heat
Perfect for large-scale heating needs in commercial construction, industrial job sites, and outdoor projects across North America.
The Flagro F-375 propane heater delivers 375,000 BTU/h of clean, direct heat, ideal for construction sites, industrial spaces, and agricultural buildings across Canada. With manual ignition, built-in safety shut-off, and a 20 ft hose with 20 PSI regulator included, this rugged heater is ready to work where and when you are.
Key Features & Benefits of the Flagro F-375 Heater
375,000 BTU/h of High-Performance Heat
Generates intense heat output for large open or ventilated spaces
Excellent for equipment thawing, concrete curing, drying, and general heating
No electricity required – fully mechanical ignition and operation
Built-In Safety Shut-Off
Automatic flame failure protection
Safe for job sites, warehouses, farms, barns, and temporary structures
Meets cUL certification for North American compliance
Manual Ignition = Zero Hassle
Reliable piezo ignition—no power or batteries needed
Simple start-up in cold or remote locations
No electronics to fail during harsh weather
Comes Ready to Work
Includes 20 ft. propane hose and 20 PSI regulator
Compact design and carry handle make it easy to relocate
Lightweight, portable, and durable metal body
Applications
The Flagro F-375 is a favorite across industries for its portability, output, and reliability:
Construction Site Heating
Concrete Curing and Drying
Warehouse & Loading Bay Heat
Agricultural Buildings (Barns, Greenhouses)
Equipment Thawing
Event Tent Heating (Ventilated Spaces)
Specifications
Feature
Details
BTU Range
220,000 - 375,000 BTU/H
Fuel Type
Propane
Fuel Consumption
10.1 to 17.3 lbs/hr (approx. 2.39 – 4.09 GPH)
Manifold Pressure
7 – 20 PSI
Ignition
Manual
Air Outlet Diameter
13”
Dimensions
42” x 17” x 22”
Weight
65 lbs
Certifications
UL of Canada Listed
Part Number (SKU)
FLF375
Easy Storage, Transport & Setup
Weighing only 65 lbs, the Flagro F-375 is incredibly easy to:
Load and unload between jobs
Carry up stairs or through tight corridors
Stack neatly in service trucks, tool rooms, or on pallets
Deploy in under 5 minutes with no electrical connections required
Whether you’re in construction, renovation, agriculture, or emergency response, the F-375 is a no-hassle workhorse.
Why Choose Flagro?
For over 45 years, Flagro Industries has been manufacturing dependable commercial and industrial heaters designed for harsh Canadian and U.S. winters. Their propane heaters are known for durability, safety, and unmatched performance in demanding conditions.
Cleanflow proudly distributes Flagro heaters across Canada, offering fast shipping, knowledgeable support, and expert guidance to help you choose the right model for your needs.
Need help choosing the right model? Use our BTU Calculator to correctly size your heater.
Get the Flagro F-375 Heater Today
Don’t let cold weather slow down your crew or your project. The Flagro F-375 Propane Heater gives you high-output, clean-burning heat wherever you need it. Whether you're working in construction, agriculture, or industrial spaces, this heater delivers results quickly, safely, and reliably.
👉 In Stock & Ready to Ship from Canada. Order Now.
FAQs
Can I use this heater indoors?
The F-375 is a direct-fired propane heater and must be used only in well-ventilated or outdoor spaces. It is not safe for sealed indoor use without ventilation.
Does it need electricity to operate?
No. The F-375 runs without electricity, using manual ignition and propane fuel. This makes it ideal for remote job sites, trailers, or backup heat needs.
What’s included with the heater?
The F-375 comes with a 20 ft propane hose and a 20 PSI adjustable regulator. The unit operates effectively via radiant and convection heat.
Do you ship this heater across Canada and the U.S.?
Yes! Cleanflow ships nationwide. Orders over $199 qualify for free shipping across Canada, with no surprise customs fees or border delays.
