Becoming NFI Certified

Woodburning Hearth Exam
 

I. FUNDAMENTAL KNOWLEDGE (25% of exam)

Woodburning Category 1: Combustion
1. Knowledge of principles of combustion
2. Knowledge of consequences of incomplete combustion

Woodburning Category 2: Heat/Heat Protection
1. Knowledge of heat transfer principles
2. Knowledge of heat distribution methods
3. Knowledge of required clearances to combustibles
4. Knowledge of required clearances to noncombustibles
5. Knowledge of floor protection

Woodburning Category 3:
Safety Guidelines/Consequences of Action

1. Knowledge consequences of improper installations
2. Knowledge of the causes and effects of carbon monoxide (CO)
3. Knowledge of hazardous materials
4. Knowledge of safety guidelines for installation

Woodburning Category 4:
Construction Fundamentals

1. Knowledge of basic home construction
2. Knowledge of techniques for protecting client property in the work area
3. Knowledge of construction factors that affect installation
4. Knowledge of chase construction and weatherization

II. INSTALLATION KNOWLEDGE (75% of exam)

Woodburning Category 5.
Regulation and Instructions

1. Knowledge of the relationship between codes, standards, and manufacturer
2. Knowledge of jurisdictional roles and responsibilities

Woodburning Category 6: Appliance Requirements
1. Knowledge of appliance types
2. Knowledge of acceptable modifications to appliance
3. Knowledge of factors affecting the choice of an appliance selection
4. Knowledge of factors affecting the choice of an appliance location
5. Knowledge of appliance installation procedure
6. Knowledge of appliance installation requirements for mobile homes
7. Knowledge of installation requirements for inserted appliances into prefabricated fireplaces
8. Knowledge of existing masonry fireplace construction details and requirements
9. Knowledge of installation compatibility for aftermarket add-ons
10. Knowledge of solid fuel appliance categories
11. Knowledge of clearance reduction methods for solid fuel appliances and connector pipes
12. Knowledge of solid fuel code requirements and standards
13. Knowledge of installation requirements for unlisted solid fuel appliances
14. Knowledge of factory-built fireplace components

Woodburning Category 7:
Draft and Ventilation Principles

1. Knowledge of ventilation and indoor air quality
2. Knowledge of draft principles
3. Knowledge of resistance to flow in chimney/venting systems
4. Knowledge of factors exterior to the house affecting draft
5. Knowledge of house characteristics contributing to negative pressure problems
6. Knowledge of ventilation principles

Woodburning Category 8:
Woodburning Venting Requirements

1. Knowledge of installation procedures for outside air system
2. Knowledge of UL 1777, Standard for Chimney Liners, as it pertains to installation of solid fuel lining systems
3. Knowledge of chimney termination requirements for solid fuel appliances
4. Knowledge of solid fuel chimney/venting system types
5. Knowledge of solid fuel liner systems
6. Knowledge of chimney/vent connectors (stovepipe) for solid fuel appliances
7. Knowledge of sizing requirements for solid fuel chimney/venting systems
8. Knowledge of installation procedures for lining/relining chimneys for solid fuel appliances
9. Knowledge of purpose, use, and compatibility of chimney/venting components
10. Knowledge of chimney/venting installation procedures
11. Knowledge of inspection and cleaning requirements for chimney/venting systems


Woodburning Category 9:
Post Installation Inspection and Service

1. Knowledge of appliance break-in procedures
2. Knowledge of operating procedures for appliances
3. Knowledge of solid fuel characteristics
4. Knowledge of maintenance requirements for cordwood appliances and venting systems
5. Knowledge of causes and solutions to common solid fuel appliance performance problems
6. Knowledge of troubleshooting procedures for testing solid fuel appliances and venting systems