HeatFast HF75K 75,000 BTU Forced Air Kerosene Heater with Thermostat

Unleash Powerful Warmth with the HeatFast HF75K 75,000 BTU Forced Air Kerosene Heater – Ashley Hearth’s Ultimate Heating Solution!

Product Description

Provide hours of comfort for your jobsite, barn, or any space up to 1,875 sq. feet with the high-output HeatFast HF75K Forced Air Kerosene Heater. Tested for extreme conditions, it operates on various fuels and features a convenient thermostat for precise heat control

Product Features

Operates up to 10 hours on a full tank of fuel
CSA Certified for safety
5-minute assembly with included screws
1-year Manufacturer’s Limited Warranty
Multiple Fuel Compatibility: K-1 Kerosene, Diesel Fuel, #1 and #2 Heating Oil, Jet-A, and JP-8
Rugged design tested to perform at -20°C
Convenient thermostat heat control with LED Readout
Powerful: 75,000 BTUs heat up to 1,875 sq ft
Built-in 5 Star Safety System

Product Specifications

Assembled Dimensions: Width – 29.1 in, Depth – 11.8 in, Height – 15.9 in
Package Weight: 28.2 lbs
Package Dimensions: Width – 30.9 in, Depth – 13 in, Height – 15.7 in

Installation Options

refer to manual

Fuel Types


Fuel Type Application


Clearances and Cavity Measurements

refer to manual


limited warranty

Product Highlights

Experience unmatched heating efficiency with the HeatFast HF75K 75,000 BTU Forced Air Kerosene Heater. This versatile unit operates for up to 10 hours, offering powerful warmth for spaces up to 1,875 sq. feet. With its rugged design tested for extreme conditions and a user-friendly thermostat for precise control, the HF75K is the ideal heating solution for any job site or barn. Backed by a 1-year Manufacturer’s Limited Warranty, it ensures reliable performance and safety.

Company Overview for Manufacturer

Ashley Hearth is a renowned global brand with a history dating back to 1869. Based in South Pittsburgh, Tennessee, the company designs and engineers top-quality heating products. Ashley Hearth’s commitment to quality, affordability, and value is evident in every product they manufacture. With components sourced globally and assembled in various facilities, Ashley Hearth continues to keep America warm with innovative heating solutions.


Q: What fuel types are compatible with the HeatFast HF75K?
A: The HeatFast HF75K is compatible with K-1 Kerosene, Diesel Fuel, #1 and #2 Heating Oil, Jet-A, and JP-8.

Q: How long does the heater operate on a full tank?
A: The heater can operate for up to 10 hours on a full tank of fuel.

Q: Is assembly difficult?
A: Not at all. The heater has a 5-minute assembly process requiring the attachment of two screws (included).

Q: What safety features are built into the HF75K?
A: The HF75K boasts a built-in 5 Star Safety System for enhanced user safety.

Q: Can it be used for residential heating?
A: Yes, the HF75K is suitable for various settings, including residential spaces, barns, and job sites.

Q: What warranty is provided with the HF75K?
A: The heater comes with a 1-year Manufacturer’s Limited Warranty.

Q: Does it come with a thermostat?
A: Yes, the HF75K features a convenient thermostat with LED Readout for precise heat control.

Q: What are the dimensions of the heater?
A: Assembled dimensions are Width – 29.1 in, Depth – 11.8 in, Height – 15.9 in.

Q: Can it operate in extremely cold conditions?
A: Yes, the heater is factory-tested to perform at -20°C.

Q: Is the HF75K CSA Certified?
A: Yes, the heater is CSA Certified for safety.

Q: Can it use gasoline as fuel?
A: No, it is not recommended to use gasoline with the HF75K. It is compatible with kerosene, diesel, heating oil, and jet fuel.

Q: How do I register the product for warranty?
A: Product registration details can be found on our website.

Q: Are replacement parts available?
A: Yes, replacement parts are available. Check our website or contact customer support for details.

Q: What is the weight of the heater?
A: The heater weighs 28.2 lbs.

Q: Can the HF75K be used indoors?
A: It is recommended for well-ventilated spaces. Please follow safety guidelines provided in the manual.

Q: Is there a video tutorial for assembly?
A: Yes, you can find assembly tutorials in our Video Library on the website.

Q: What is the main advantage of the SMART Diagnostics digital readout?
A: It provides error codes for easy troubleshooting.

Q: Can it run on biofuels?
A: The HF75K is not designed for use with biofuels. Stick to recommended fuels for optimal performance.

Q: Can I use the heater at high altitudes?
A: Yes, the heater is suitable for use at various altitudes.

Q: How do I contact customer support?
A: You can reach our customer support through the “Contact Us” section on our website.