Design Considerations: When to Use Type 1 v. Type 2 Hoods

Design Considerations: When to Use Type 1 v. Type 2 Hoods

When it comes to commercial kitchen ventilation, selecting the right hood type is crucial for ensuring safety, compliance, and optimal performance. Type 1 and Type 2 hoods serve distinct purposes and have specific design considerations that installers must take into account. In this guide, we’ll delve into the differences between Type 1 and Type 2 hoods and provide insights into when to use each type in various kitchen settings.

Understanding Type 1 Hoods

Type 1 hoods, also known as grease hoods, are designed to capture grease-laden vapors produced during cooking processes. They are typically installed over cooking equipment that produces grease, such as grills, fryers, and stovetops. Type 1 hoods feature grease filters and ductwork that direct the captured grease to an external grease trap or collection system. These hoods are essential for preventing grease buildup in kitchen exhaust systems and reducing fire hazards.

When to Use Type 1 Hoods

Type 1 hoods are ideal for kitchens where grease-producing equipment is prevalent, such as:

  • Restaurants with fryers, griddles, or charbroilers.
  • Fast-food establishments with high-volume frying operations.
  • Catering facilities that handle large quantities of greasy foods.

In these environments, Type 1 hoods effectively capture grease-laden vapors and prevent them from accumulating in ductwork, exhaust fans, and other components, thereby minimizing the risk of grease fires and maintaining ventilation system efficiency.

Understanding Type 2 Hoods

Type 2 hoods, also known as condensate hoods, are designed to capture heat, steam, and non-grease-laden vapors generated during cooking processes. They are commonly used over cooking equipment that produces heat and steam, such as ovens, steamers, and dishwashers. Type 2 hoods feature standard filters and ductwork that remove heat and steam from the kitchen environment without capturing grease particles.

When to Use Type 2 Hoods

Type 2 hoods are suitable for kitchens where heat and steam are the primary concerns, such as:

  • Bakeries with ovens and proofing equipment.
  • Cafeterias with steam tables and food warmers.
  • Dishwashing areas in commercial kitchens.

By installing Type 2 hoods over equipment that emits heat and steam, installers can maintain a comfortable and safe working environment for kitchen staff, prevent condensation-related issues, and improve overall air quality.

Designing for Compliance and Performance

Whether specifying Type 1 or Type 2 hoods, architects, designers, and installers must work together to achieve compliance with industry standards and regulations while prioritizing performance and safety. Considerations such as equipment placement, airflow optimization, and regulatory adherence are key factors in designing and installing effective ventilation solutions for commercial kitchens. It’s imperative to consider:

  • Cooking Equipment: Assess the types of cooking equipment present in the kitchen and their specific ventilation needs. Equipment that produces grease requires Type 1 hoods, while equipment generating heat and steam requires Type 2 hoods.
  • Kitchen Layout: Consider the kitchen’s layout, including the location of cooking stations, dishwashing areas, and food preparation zones. Install hoods strategically to ensure adequate coverage and efficient capture of airborne contaminants.
  • Regulatory Requirements: Familiarize yourself with local building codes, health department regulations, and fire safety standards related to kitchen ventilation. Ensure that the selected hood type complies with applicable regulations and guidelines.
  • Client Needs: Consult with clients to understand their operational requirements, cooking processes, and preferences. Tailor ventilation solutions to meet their specific needs and expectations for safety, efficiency, and comfort.

In conclusion, choosing between Type 1 and Type 2 hoods requires carefully considering equipment, layout, regulations, and client needs. By understanding each hood type’s distinct functions and design considerations, HVAC and kitchen ventilation installers can recommend and install the most suitable ventilation solutions for commercial kitchens. Partner with NAKS for a comprehensive range of Type 1 and Type 2 hoods, expert guidance, and reliable support throughout your installations. We can’t wait to help you get started – contact us today!