Connecticut Limited Gas and Oil Burners License

Important changes in the 2021 IMC include:

• Clothes dryer exhaust terminals required to be at least 3 feet from any opening into a building.
• Polyurethane spray-applied foam on the exterior of ducts in attics and crawl spaces required to meet specific smoke and flame index limits.
• Fire and smoke dampers must be provided with approved access for inspection and maintenance.
• Refrigerant tables updated to include new refrigerants.
• Addition of condensate termination identification markings and discharge restrictions.
• Approved factory-built combination intake/exhaust terminations permitted, relaxing separation requirement.
• 30% reduction in minimum mechanical ventilation for whole-house balanced ventilation systems.
• Continuous operation requirement for manicure and pedicure station exhaust systems.
• Grease duct horizontal cleanout required within 3 feet of a horizontal discharge fan.

The 2021 IRC® contains many important changes such as:

• Braced wall lines must be placed on a physical wall or placed between multiple walls.
• The rated separation for two-family dwellings is 1 hour whether or not a lot line exists between units.
• Emergency escape and rescue openings require a clear 36-inch-wide path to a public way.
• An engineered design is required for storm shelters.
• A habitable attic is limited to one-half the area of the story below and the dwelling requires sprinklers.
• Updated Wind Speed maps match IBC and ASCE 7 maps.
• Deck design now considers snow load, tributary area for footing and post height, and guard details.
• Specific requirements for deck guardrails were added.
• Component and cladding wind pressures in Table R301.2(2) are updated for new design wind speeds and hip or gable roof profiles.
• Minimum footing size tables are revised to more accurately reflect current practice.
• Cripple wall requirements apply only to exterior cripple walls.
• New appendices for cob construction and 3D printed construction are added.
• A 30 percent reduction of airflow is permitted for balanced ventilation systems.
• Commercial gas cooking appliances are prohibited.
• The head pressure for a water test of DWV systems increased to 10 feet.
• Air vacuum testing is now permitted for plastic piping DWV systems.
• Section P2904 for dwelling sprinklers is expanded to more closely align with NFPA 13D.
• An emergency service disconnect is required in a readily accessible outdoor location.
• A surge-protective device (SPD) is now required at the service panel.
• The number of receptacle outlets required for peninsular and island countertops in kitchens is determined by the area of the countertop surface.
• GFCI protection is now required for damp and wet locations not included in the other 10 areas requiring GFCI protection.

NFPA 31, Standard for the Installation of Oil-Burning Equipment is the benchmark for the correct installation of boilers, air heaters, and other liquid fuel-burning equipment, and their fuel supplies. Designers, contractors, and installers rely on this Standard for guidance that protects property and building occupants by ensuring a fire-safe installation.

From carbon monoxide poisoning to the risks of fire and explosion, there are many hazards inherent with the utilization of gaseous fuels. NFPA 54 offers comprehensive provisions for the safe design, installation, operation, maintenance, purging, and inspection of gas piping, equipment, accessories, and appliances supplied with fuel gas.

NFPA 58: Liquefied Petroleum Gas Code provides minimum safety requirements for all liquefied petroleum gas (propane) installations, from small cylinders installed at residences to large bulk storage facilities that can exceed 100,000 gallons. The code includes minimum requirements for safe handling during LP gas transfer, including operator qualifications, maximum filling quantity in containers, and pre-transfer inspections to ensure containers are fit for continued service.

Key changes in the 2021 IFGC® include:

• The termination of concealed condensate piping requires marking to indicate if it is the primary drain or the secondary drain.
• Press-connect joints are acceptable for high pressure (over 5 psig) applications indoors.
• Commercial cooking appliances are not allowed within dwelling units.

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The NASCLA Contractors Guide to Business, Law and Project Management is organized into three sections.

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