Arkansas HVACR NewsMagazine January 2026

ARHVACR NewsMagazine January 2026

S tate, National, Chapter News State national Chapter News

Best Practices • Perform full combustion and operational checks. • Verify pressure switch operation. • Confirm temperature rise is within manufacturer specifications. • Educate homeowners on filter maintenance and condensate drains. deliver excellent performance when installed correctly — but they demand precision. For HVAC contractors, success depends on attention to venting details, condensate drain line management, accurate sizing, and airflow verification. By following manufacturer instructions and applying best practices tailored to Arkansas’ climate and homes, contractors can reduce callbacks, protect their reputation, and ensure homeowners receive the efficiency and comfort they expect. Final Takeaway High-efficiency furnaces

balances short-run efficiency with adequate cold-weather capacity. • Avoid “just in case” oversizing: Oversized furnaces short cycle, reduce efficiency, increase wear, and create comfort complaints.

5. Airflow and Duct System Compatibility

High-efficiency furnaces — especially those with variable-speed ECM blowers — require properly designed duct systems to operate as intended.

Best Practices •

Verify total external static pressure (TESP): Many systems fail not because of the furnace, but because ducts are undersized or restrictive. • Seal and insulate ducts: Leaky ductwork undermines efficiency gains and increases humidity issues common in Arkansas homes. • Set blower profiles correctly: Match airflow settings to heating stages and duct design to prevent noise, poor comfort, and limit-switch trips.

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6. Commissioning and Documentation

Proper startup and documentation reduce callbacks and protect contractors.