


Manual J Required: Why Rule-of-Thumb HVAC Sizing No Longer Cuts It
Manual J Required: Why “Rule-of-Thumb” Sizing Is Yesterday’s News Picture a blazing July afternoon in Rockford, Illinois. Maya Garcia is on her third glass of iced tea, yet the upstairs nursery still feels like a sauna. Her brand-new 3-ton air-conditioner keeps...
Accurate Manual Calculations: How Precise Manual J, S & D Design Boosts Your Bottom Line
Accurate Manual Calculations are the unsung accountants of home comfort. Imagine you’re packing for a cross‑country road trip: too small a suitcase and you’re shivering in the Rockies; too big and you’re paying airline fees for empty space. HVAC sizing works the same...
Virginia Manual S Load Calculation: Your Pathway to Code-Compliant Comfort
Virginia Manual S Load Calculation: Ensuring Comfort from Chesapeake Bay to the Appalachian Mountains Building and renovating homes in the Great State of Virginia is both an art and a science. Many have likened the process to orchestrating a symphony, where every note...