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Flagro FVNP-400 Indirect Fired Heater – 390,000 BTU High-Capacity Industrial Heating

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The Flagro FVNP-400 Indirect Fired Heater delivers 390,000 BTUs of efficient, clean heating for industrial and construction environments. With durable construction, extended duct compatibility, and a portable design, it’s perfect for large-scale heating needs.

 

Flagro FVNP-400 · 390,000 BTU Indirect-Fired Heater

High-capacity, clean heat with long-duct capability for industrial, construction, and temporary environments.

The FVNP-400 delivers 390,000 BTU/hr of indirect-fired heating with a rugged, portable design that handles extended duct runs for flexible distribution.
Built for tough job sites, it vents combustion byproducts outdoors to help maintain safe indoor air quality in large spaces and temporary structures.

Model: FVNP-400 · Category: Indirect-Fired Heaters



Key Features

  • 390,000 BTU Output — high-performance heating for large spaces and demanding conditions.
  • Extended Duct Runs — efficient heat distribution across wide areas.
  • Durable Construction — engineered for rugged industrial and construction use.
  • Indirect-Fired Technology — vents combustion products externally for cleaner indoor air.
  • Portable Design — flat-free tires support easy mobility on job sites.

Specifications

Heating Capacity 390,000 BTU/hr
Dimensions (L×W×H) 70″ × 29″ × 47″
Weight 365 lbs
Power Supply 115 V · 1 ph · 60 Hz

Advanced Features

  • Efficient Heat Distribution — supports long duct runs for consistent coverage.
  • Rugged, Portable Design — durable chassis and tires for frequent transport.
  • Reliable Performance — stable high-capacity output for demanding applications.

Applications

  • Industrial Workspaces — factories, warehouses, and large indoor areas.
  • Construction Sites — dependable heat for crews and materials in cold weather.
  • Temporary Structures — event tents, portable offices, and outdoor setups.

Why Choose the FVNP-400

  • High-Capacity Heating — 390,000 BTU/hr for big coverage.
  • Durable & Portable — built to handle harsh conditions and frequent moves.
  • Clean Operation — indirect-fired design helps maintain indoor air quality.

Safety Considerations

  • Ensure Proper Ventilation — maintain adequate makeup air and follow local codes.

Order the Flagro FVNP-400 Today

The FVNP-400 Indirect-Fired Heater provides powerful, clean heat with flexible ducting for large commercial and industrial spaces.
For pricing and availability, contact Climate Control Solutions at
(800) 633-8711 or email
[email protected].


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ProducerTy
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Their team provided top-notch service, delivering everything on time and exactly as expected. The entire process was seamless, from the initial consultation to the final installation, showcasing their professionalism and attention to detail. I highly recommend Climate Control Solutions for anyone in need of heating or cooling services. Their punctuality, quality of work, and excellent customer care truly set them apart in the industry. A great choice for reliable and efficient climate control solutions.
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Aidan McCourt
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Great company to work with.
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Judy Pate
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We are loving our Cool Boss evaporative cooler. It was delivered ready to plug in and go. It's quiet, easy to operate and move around where needed. Thanks, CCS, for the great service!
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Stan Love
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This is definitely a Top tier, 5-star company owned and operated by highly skilled individuals! Service oriented and offering a wide range of portable heating, ventilation and air conditioning products to meet whatever mechanical needs you have. I have known the family behind this company for several decades and honored to recommend and support their efforts and CCS. Stan Love AIA, RID
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aimee coody
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The spot coolers provided Climage Control Solutions saved the day at my office when our central ac went out in the entire building. The portable ac units kept us all very comfortable for several weeks while we waited for ours to be repaired. It only took 2 units to cool quite a large space. Thanks you CCS!!! We appreciate you!
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Benton Mattson
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The MOB-250's provided by Climate Control Solutions saved the day when our central a/c units went out at our corporate office. The mobile air conditioners worked great while we waited for our a/c units to be repaired. Fantastic service and very responsive! Thank you Climate Control Solutions for your help!
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Todd Kurlowski
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Fantastic service! I received great customer service and all my questions were answered. Climate Control Solutions delivered an Airrex spot cooler with a ceiling kit as promised with on time delivery and set up. I would definitely recommend.
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Brad Kenter
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Climate Control Solutions was great to work with. We had a order come in that required 12 Cool Space 400's asap. They had the equipment in stock, paperwork was seamless, and equipment was ready for pick up when stated. We will be buying more equipment from Climate Control Solutions in the future!
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Sam Lopez
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Very professional staff with great knowledge of the cooling and heating industry. Highly recommend them for your climate control needs. They were able to efficiently size and recommend the equipment that was necessary for the area that needed to be cooled with a quick turn around.
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Shawn Buhner
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First class company with quick service and delivery. Climate Control Solutions helped supply just the right cooling equipment to keep my small business operating during these hot summer days.

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Flagro FVNP-400 Indirect Fired Heater – 390,000 BTU High-Capacity Industrial Heating

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