Frost Fighter IHS700H High Capacity Indirect-Fired Heater | 700,000 BTU, 8000 CFM, ~6.0" w.c.

Unmatched Indirect Fired Heater Power and Airflow for Extreme Canadian Job Sites

The Frost Fighter IHS700H is a high-performance, dual-fuel indirect-fired heater that delivers 700,000 BTU/h of clean, safe, and powerful heat with up to 8,000 CFM airflow. Designed for the toughest Canadian winters and industrial job sites, this heater adapts to your fuel needs, whether that’s Oil/Diesel or LP/Natural Gas, and supports multiple power input options for ultimate flexibility.

Whether you're heating a remote oilfield, curing concrete, or running emergency heat in a tented environment, the IHS700H is engineered to outperform, outlast, and outheat.

Frost Fighter IHS700H Heater Key Features & Benefits

High-Capacity Heating & Airflow

• 700,000 BTU/h heat output
• Up to 8,000 CFM airflow — over 50% more than the IHS700P
• 6.0" static pressure for long duct runs and high-demand jobs
• Universal duct compatibility: supports pin lock and belt cuff connectors
• Supports 100+ ft of ducting per outlet

Dual-Fuel & Power Flexibility

• Choose between Oil/Diesel or LP/Natural Gas setups
• EZ Burner Switch-Out Kit available at time of order
• 208/230V 1P or 3P standard; optional 460V or 575V
• Soft-start motor ensures smooth operation and correct fan rotation
• Optional 175-gallon fuel tank (Oil/Diesel) for up to 35 hours of runtime

Smart Diagnostics with PLC Control

• Integrated Programmable Logic Controller (PLC)
• Displays real-time operational and fault codes
• Minimizes service downtime and simplifies troubleshooting
• Optional LED status beacon for high-visibility alerts

Industrial Durability

• Multi-pass stainless steel heat exchanger
• Powder-coated, satin-coated steel housing
• Fully insulated, cool-touch shell for safety and efficiency
• Forklift pockets, lifting hooks, and a stackable frame for transport and storage

Safe for Enclosed Spaces

Indirect-fired: No flame, fumes, or CO in the airstream

Ideal for indoor heating, tent heating, curing applications, and enclosed worksites

Specifications

⚠️ Electrical Notes

The IHS700H features varying inrush currents depending on the voltage configuration. While breaker size isn't directly listed in documentation, here’s what you should know:

Breaker Sizing Guidance

For electrical planning, breaker size should exceed the initial inrush current, typically by 125% depending on local code.

Example: For 230V/3P with 50A inrush, use a breaker rated 63A or higher. Always confirm sizing with a certified electrician.

Accessories – What's Included vs. What's Not Included

✅ INCLUDED WITH THE HEATER

❌ NOT INCLUDED – SOLD SEPARATELY

Applications

• Large-Scale Construction
• Oil & Gas Field Heating
• Concrete Curing & Equipment Thawing
• Emergency & Remote Heating
• Tent & Enclosure Heating
• Pipeline Projects
  

Why Choose the IHS700H Indirect Jobsite Heater?

Frost Fighter’s IHS700H is more than a heater. It’s a mission-critical tool designed for professionals working in cold, enclosed, and demanding environments. Canadian-engineered and trusted across North America, it’s CSA & ETL certified, dual-fuel ready, and built to deliver best-in-class performance.

• Trusted by contractors, municipalities & energy pros
• Canadian-built for extreme cold climates
• Dual-fuel: LP/NG or Oil/Diesel for flexible fuel use
• Best-in-class airflow (up to 8,000 CFM) and 6.0" static pressure
  

Need help sizing your heater? Use our free BTU Calculator to find the right model based on space, insulation, and temperature needs.

Why Buy from Cleanflow?

We stock only genuine Frost Fighter heaters, no knock-offs or grey-market units. Our team supports industrial heating pros with fast shipping and deep product knowledge.

• Fast, coast-to-coast shipping
• 100% authentic Frost Fighter equipment
• No grey-market or refurbished units
• Trusted by Canada’s top contractors
  

Cleanflow is proud to be an authorized distributor of the Frost Fighter brand, delivering premium indirect heaters to North America’s most demanding job sites.

Frequently Asked Questions

Is the IHS700H safe for enclosed spaces?

Yes! The IHS700H is indirect-fired, meaning no open flame or combustion fumes enter the heated air stream. It’s safe for use in enclosed and semi-enclosed environments like tents, warehouses, or indoor job sites.

Can I choose between Oil/Diesel and LP/Natural Gas?

Yes, at the time of purchase, you can specify your preferred fuel setup (Oil/Diesel or LP/NG). If you anticipate needing both, ask us about the EZ Burner Switch-Out Kit to simplify future fuel conversions.

What power input options are available?

Standard input is 208/230V (1 Phase or 3 Phase), but you can also request 460V or 575V configurations. A soft start motor ensures correct fan rotation and reduced inrush current.

How long can it run on a full tank?

If using the Oil/Diesel model with the optional 175-gallon fuel tank, it can operate for up to 35 hours continuously.

How do I know which size heater I need?

You can use our free BTU Calculator to determine the right size heater for your space and climate. It takes into account insulation, dimensions, and outdoor temperature.

Does it require a special electrical breaker?

The unit has varying inrush currents depending on the voltage setup. For example, 230V/3P has a 50A inrush, which typically requires a 63A breaker or larger. Final breaker size should be confirmed by a certified electrician based on your installation.

How long does shipping take, and what if I need to return the unit?

We ship Frost Fighter heaters quickly across Canada and the U.S., so you can stay on schedule even on remote job sites. If you need to return or exchange the unit, we offer a simple 30-day return policy with flat-rate return shipping and no fees on exchanges, as long as the heater is unused and in its original condition.