Ohio Administrative Code 4101:2 — Department of Commerce | Board of Building Standards: Ohio Mechanical Code

Chapter 4101:2-1 Administration

Ohio Adm.Code 4101:2-1-01 Administration.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-2 Definitions

Ohio Adm.Code 4101:2-2-01 Definitions.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated June 25, 2025 at 6:29 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-3 General Regulations

Ohio Adm.Code 4101:2-3-01 General regulations.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated May 29, 2024 at 11:42 AM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-4 Ventilation

Ohio Adm.Code 4101:2-4-01 Ventilation.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-5 Exhaust Systems

Ohio Adm.Code 4101:2-5-01 Exhaust systems.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated June 26, 2025 at 11:17 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-6 Duct Systems

Ohio Adm.Code 4101:2-6-01 Duct systems.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-7 Combustion Air

Ohio Adm.Code 4101:2-7-01 Combustion air.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated June 25, 2025 at 6:29 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-8 Chimneys and Vents

Ohio Adm.Code 4101:2-8-01 Chimneys and vents.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated May 29, 2024 at 12:28 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-9 Specific Appliances

Ohio Adm.Code 4101:2-9-01 Specific appliances, fireplaces and solid fuel-burning equipment.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-10 Boilers, Water Heaters and Pressure Vessels

Ohio Adm.Code 4101:2-10-01 Boilers, water heaters and pressure vessels.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated May 29, 2024 at 12:28 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-11 Refrigeration

Ohio Adm.Code 4101:2-11-01 Refrigeration.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:13 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-12 Hydronic Piping

Ohio Adm.Code 4101:2-12-01 Hydronic piping.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated May 29, 2024 at 12:28 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-13 Fuel Oil Piping and Storage

Ohio Adm.Code 4101:2-13-01 Fuel oil piping and storage.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03

Chapter 4101:2-14 Solar Systems

Ohio Adm.Code 4101:2-14-01 Solar thermal systems.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated May 29, 2024 at 12:28 PM

History

• Effective: March 1, 2024
• Promulgated Under: 119.03

Chapter 4101:2-15 Referenced Standards

Ohio Adm.Code 4101:2-15-01 Referenced standards.

This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed.

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Last updated October 15, 2025 at 12:21 AM

History

• Effective: October 15, 2025
• Promulgated Under: 119.03