QUEBEC CITY - The great divide between HVAC contractors and engineers is probably at its widest point where residential load calculations are concerned. Contractors don't see a practical way to do ...

Manual J 8th Edition is the national ANSI-recognized standard for producing HVAC equipment sizing loads for single-family detached homes, small multi-unit structures, condominiums, town houses, and ...

Modern HVAC equipment is more advanced, efficient and capable than ever before. Even the best system cannot overcome poor design assumptions or installation shortcuts.

In today’s climate, a reliable cooling system is no longer a luxury — it’s a necessity. Whether you’re building a new home or upgrading an outdated HVAC system, investing in professional central air ...

Based on the 2020 National Electrical Code. Article 220 of the 2020 National Electrical Code (NEC) contains the requirements for calculating demand loads for branch circuits, feeders, and services.