Smart HVAC pros use load calculations to determine the size and type of HVAC system a home requires. That helps ensure the home will be comfortable and efficient year-round and that it will meet code, explains Arlan Burdick, a building performance specialist at IBACOS, in Professional Builder. The process of calculating whole-house and room-specific heating and cooling loads, finding the right equipment, and designing and installing the system has been codified in the International Residential Code, meaning construction pros are accountable for providing right-sized systems. To see how propane can help, check out our guide to using high-efficiency propane furnaces to maximize performance in new installations and replacement projects.

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