The standard, ACCA 4 QM – 2019, “Maintenance of Residential HVAC Systems,” provides a nationally recognized, manufacturer-endorsed set of minimum tasks that should be performed for HVACR equipment maintenance inspections.
The certification process involved a thorough review and rigorous evaluation of Nationwide Boiler’s welding procedure by a review team from the National Board.
“The modest flat/up results so far this year are consistent with our expectations that 2024 is the bottom of this cycle,” said Brian Loftus, HARDI’s macroeconomic and residential market analyst.