Placeholder Knife Heat Treatment Ovens Compared — The Bevel
Skip to content
Knife Heat Treatment Ovens Compared

Knife Heat Treatment Ovens Compared

Choosing the Perfect Heat Treatment Oven: Key Considerations and Information

Are you in the market for a heat treatment oven but feeling overwhelmed by the number of options available? Choosing the perfect heat treatment oven can be a crucial decision that can significantly impact the quality and efficiency of your heat treatment process. With many factors to consider, from temperature range and uniformity to energy efficiency and safety features, it's important to have informed advice to guide you through the selection process. That's where we come in.  In this article, we will delve into the key considerations you should keep in mind when choosing a heat treatment oven, as well as provide valuable advice to help you make an informed decision. Whether you're a small business or just starting out knife making, our goal is to help you find the perfect heat treatment oven that meets your requirements and exceeds your expectations.

Understanding Heat Treatment Ovens

Heat treatment ovens are essential equipment used in various industries, including manufacturing, aerospace, automotive, and more. These ovens are designed to heat materials to specific temperatures, allowing for processes such as annealing, tempering, stress relieving, and hardening. By subjecting materials to controlled heat, the desired physical and mechanical properties can be achieved, making heat treatment a critical step in many manufacturing processes but more importantly a correct heat treatment is critical to the knife maker. Without a correct heat treat, your project will essentially be a pretty piece of steel instead of a functional tool.

Heat treatment ovens come in different types and configurations, each suited for specific applications and materials. Understanding the basic principles behind heat treatment ovens is essential when it comes to choosing the right one for your production needs. Let's explore the main brands of heat treatment ovens available in the market designed for knife makers.

Jen-Ken Kilns

Jen-Ken has been in the kiln manufacturing business since 1951. Based in Lakeland Florida, the company has a long history of innovation and excellent customer service. Along with the theme of innovation, Jen-Ken Kilns produced the vertical air bath series of heat treat ovens. The vertical design of the kiln is made with the knife maker in mind.

  • The Vertical Air Bath outranks other heat treating furnaces in 6 ways:
  • Vertical Blade Suspension – Prevents Warps! Unparalleled Stress-Free Heat Distribution!
  • Top Loading – The Best Heat Recovery on Full Loads!
  • Power Interrupt Lid Switch – Assures Workshop Safety! Blades Can’t Touch Live Elements!
  • Rolling Stand with Casters – Space Flexibility and Portability! Keeps Your Workshop Safe!
  • Large Capacity – Holds a Dozen Blades or More in a Single Load!
  • Configurable Baffle Design – Allows Blades of All Shapes to Process Together!


Hot Shot Ovens

Relatively new on the scene of heat treating ovens compared to others in this list, Hot Shot Ovens has made a big splash in the knife making space. Hot Shot has a wide selection of heat treat ovens perfect for your next project. Hot Shot also boasts great customer support and technical manuals to make your heat treating perfect. 

Experience the epitome of precision, safety, and reliability with the Hot Shot 24K, an oven crafted in collaboration with esteemed blacksmiths and knife makers. Get your perfect blade and be safe every time you turn on your oven with their cool to touch, side elements and long chamber (24”). They know most knife makers are hobbyists working out of their own shop or garage so they designed an oven that was cool to the touch, a removable door for easy access in and out and all of the essentials built in with no added up charge; solid state relay, cooling fans, alarm and door switch.

The side elements allow for even heat distribution throughout the oven so you never have to worry about hot or cold spots! To top it all off, their oven gets up to temp fast! Only 35 minutes! Add on an Argon Gas Kit to help eliminate scaling on the surface of the steel which saves on your belt life and reduces time spent.

Even Heat

Hailing from the state of Michigan, Even Heat Ovens has been a staple in the knife making industry for many years. Queuing off the input of professional makers in the industry Even Heat designed their kilns with adaptability and consistency in mind. With what may be the kiln build with the most options on the planet they boast a range of options in their kilns for any knife maker.

Their quiet drive solid state relay also boasts a respectable 6 year no failure record. All of this makes Even Heat a solid choice for your heat treat oven.


Choosing the right type of heat treatment oven depends on various factors such as the materials to be treated, production volume, and process requirements. Carefully evaluating your specific needs will help you determine the most suitable type of oven and brand for you.

Capacity and Size Considerations

When choosing a heat treatment oven, it's crucial to consider the capacity and size that align with your production requirements. The capacity of an oven refers to the amount of material it can accommodate in a single batch or continuous operation. Overloading or underutilizing an oven can lead to inefficient heat treatment processes and wasted energy. Therefore, it's essential to choose an oven with the right capacity to ensure optimal performance.

Consider factors such as the size and dimensions of the materials to be treated, as well as the production volume. If you have large or lengthy orders, you may need an oven with a longer chamber or a higher capacity. On the other hand, if you have small or delicate projects consistently, a smaller oven may be more suitable. Assessing your knife making needs and long term plans can help you determine the ideal capacity and size for your heat treatment oven.

Temperature Control and Uniformity

Temperature control and uniformity are critical factors to consider when selecting a heat treatment oven. The ability to maintain precise and consistent temperatures throughout the oven chamber is essential for achieving the desired heat treatment results. Variations in temperature can lead to uneven heat distribution, resulting in inconsistent material properties and compromised blade quality.

Look for ovens that offer advanced temperature control features, such as programmable controllers and multiple heating zones. Programmable controllers allow you to set and monitor temperature profiles, ensuring accurate and repeatable heat treatment cycles. Multiple heating zones enable uniform heat distribution, minimizing temperature variations within the oven chamber.

Additionally, consider the temperature range of the oven. Depending on your specific heat treatment processes, you may require an oven that can reach high temperatures or operate at lower temperatures for specific applications. Understanding your temperature requirements and ensuring that the oven can meet those requirements is essential for successful heat treatment.

Heat Treatment Grain Size Chart

Energy Efficiency and Operating Costs

Energy efficiency is a crucial consideration when choosing a heat treatment oven, as it directly impacts operating costs. Energy-efficient ovens not only reduce electricity consumption but also minimize heat loss, resulting in lower operating expenses.

Look for ovens that are designed with insulation materials that provide effective heat retention. Proper insulation prevents heat from escaping the oven chamber, reducing energy waste and improving overall efficiency. 

It's also worth considering the overall operating costs of the oven, including maintenance, repairs, and replacement parts. Opting for a reputable manufacturer with a track record of reliable and durable equipment can save you money in the long run. Conduct thorough research and compare the energy efficiency ratings and operating costs of different heat treatment ovens to make an informed decision.

Construction Materials and Durability

The construction materials of a heat treatment oven play a crucial role in its durability and longevity. Heat treatment processes involve high temperatures, rapid temperature changes, and exposure to potentially corrosive materials. Therefore, it's essential to choose an oven that is constructed with high-quality materials that can withstand these demanding conditions.

Look for ovens that are made from stainless steel or other corrosion-resistant materials. Stainless steel offers excellent heat resistance and durability, making it ideal for heat treatment applications. Additionally, consider the quality of the insulation materials used in the oven. Insulation materials should be able to withstand high temperatures and effectively retain heat to maximize energy efficiency.

Investing in a well-built and durable heat treatment oven ensures that you'll have reliable equipment that can withstand the demands of your heat treatment processes for years to come. To be perfectly honest, all of the brands listed in this article are constructed in this manner.

Expert Advice on Selecting a Heat Treatment Oven

Choosing the perfect heat treatment oven can seem like a daunting task, given the numerous factors and considerations involved and lets not forget the investment cost. To help you navigate through the selection process, here are some expert tips and advice:

1. Consult with heat treatment experts: Reach out to others in the field of bladesmithing who can provide guidance and recommendations based on your stage in the journey. They can help you assess your needs, recommend suitable ovens, and offer valuable insights into the latest technologies and trends in heat treatment and knife making.

2. Consider future growth and scalability: Anticipate your future needs and growth projections when selecting a heat treatment oven. Investing in an oven that can accommodate increased production volumes or new heat treatment processes will save you from having to upgrade or replace the oven in the near future.

3. Read customer reviews and testimonials: Take the time to research and read reviews from other makers that have purchased the heat treatment ovens you are considering. Customer reviews can provide valuable insights into the performance, reliability, and customer service of the manufacturer.

4. Request a demonstration or trial: If possible, ask the manufacturer to provide a demonstration or trial of the oven you are interested in. This will allow you to see the oven in action and evaluate its performance firsthand. You-Tube is a great source for this.

5. Compare warranties and after-sales support: Consider the warranties offered by different manufacturers and the level of after-sales support they provide. A comprehensive warranty and responsive customer support can give you added peace of mind and minimize downtime in case of any issues with the oven.

6. Call us any time. We are happy to answer any questions you have about any brands we carry and if we don't have the answers at that moment we will find them out and call you back. 

The Bevel Forge Ahead

Maintenance and After-Sales Support

Proper maintenance and after-sales support are essential for maximizing the lifespan and performance of your heat treatment oven. When selecting an oven, consider the manufacturer's reputation for providing reliable maintenance services and responsive customer support.

Regular maintenance, including cleaning, calibration, and component inspections, ensures that the oven operates at its optimal performance. It's important to follow the manufacturer's recommended maintenance schedule and guidelines to prevent breakdowns and minimize the risk of costly repairs.

Additionally, inquire about the availability of spare parts and the manufacturer's ability to provide timely replacements. Having access to genuine and readily available spare parts is crucial for minimizing downtime and ensuring continuous operation of your heat treatment processes.


Choosing the perfect heat treatment oven requires careful consideration of various factors, from the type of oven and capacity requirements to temperature control, energy efficiency, safety features, and durability. Consulting with experienced knife makers and experts combined with conducting thorough research will help you make an informed decision that aligns with your specific needs and goals.

Remember to consider the long-term costs, including energy consumption, maintenance, and after-sales support, to ensure that your investment in a heat treatment oven is both efficient and cost-effective.

By taking the time to evaluate your requirements and seeking expert advice, you can find the perfect heat treatment oven that will enhance the quality and efficiency of your heat treatment processes, ultimately benefiting your knife making productivity and quality.

No matter what oven you choose remember to have fun, be safe, and always Forge Ahead. Heat Treating Ovens for sale here.

To learn more about the science behind heat treating your can read our "The Basics of Heat Treating: A Comprehensive Guide"

Previous article 7 Most Common Knife Heat Treat Failures
Next article Commonly Asked Questions about Knife Making

Leave a comment

Comments must be approved before appearing

* Required fields