HeatLoad Pro vs ManualJ Lite

HeatLoadPro is the fastest way for HVAC professionals to perform accurate Manual J-style heat load calculations on the job site. Simply scan a room using your iPhone's LiDAR sensor — HeatLoadPro automatically captures room dimensions, walls, windows, and doors. Annotate insulation types and construction details, then calculate in seconds. SCAN & CALCULATE • LiDAR-powered room scanning captures accurate dimensions automatically • Manual entry available for rooms without LiDAR access • Set local design conditions by ZIP code for climate-accurate calculations • Calculate heating and cooling loads for entire projects with one tap PROFESSIONAL REPORTS • Generate branded PDF heat load reports to share with clients or contractors • Equipment recommendations across 5 sizing tiers with efficiency options • Edit and customize equipment specs before exporting MANAGE YOUR PROJECTS • Organize multiple buildings and rooms in one place • Save and revisit projects at any time • Designed for HVAC contractors, engineers, and energy auditors SUBSCRIPTION HeatLoadPro requires an active subscription. • Monthly/Yearly subscriptions available Payment is charged to your Apple ID account. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription anytime in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.heatloadpro.app/privacy

ManualJ Lite is a fast, offline heating and cooling load estimator for houses. Enter the building, pick the climate zone, and read the cooling load, the heating load and the equipment size in seconds. WHAT IT CALCULATES Cooling load (BTU/h), itemised: - Walls, ceiling, window conduction and window solar gain - Internal gains, ventilation and infiltration - Tons, and the next nominal size at or above the load Heating load (BTU/h), itemised: - Walls, ceiling and windows - Ventilation and infiltration INPUTS - 8 IECC climate zones and 16 California Title 24 climate zones, with outdoor design temperatures you can edit for your location - Separate indoor setpoints for cooling and heating - Floor area, ceiling height, window area and occupants - Wall and ceiling insulation, selected separately - Window type, or the U-factor and SHGC from the NFRC label DOCUMENTED SIZING REPORT (IN-APP PURCHASE, PER REPORT) A clean, signable PDF of the estimate for proposals, customer files and job folders: every input, each load component, the formulas with your numbers substituted, where the design temperatures come from, and signature lines. Preview the whole report before you buy. A purchased report can be exported again for the same house at no extra charge. GOOD TO KNOW - This is a simplified whole-house block load on a single-storey, square footprint. It is not ACCA Manual J and the report is not a permit document. Where a permit, rebate programme or certification requires ACCA Manual J, use ACCA-approved software. - Not calculated: basement, slab and floor losses; duct gains and losses. - Works completely offline. No account or login required.