This update adds two new planning tools and real accuracy improvements across your load calculations: Dehumidifiers — Size a whole-home or room dehumidifier from area and dampness level. The moisture and heat load automatically splits across the rooms it serves and flows into your cooling calculations and report. Geothermal Sizer — Size and compare GeoStar water-to-water geothermal systems against your existing heating fuel, with a shareable operating-cost comparison report. Energy Savings Lab — Try what-if upgrades — insulation, air sealing, new equipment — in an isolated sandbox that never touches your saved project. See projected annual savings before committing to a scope. More Accurate Infiltration — Blower-door test results (CFM50) now drive a validated infiltration model for more accurate heating and cooling loads on tested homes. Smarter Design Conditions — Outdoor design temperatures now pull automatically from local weather data for your project's exact address. Your county's climate zone is shown separately, clearly labeled as an estimate rather than mixed in as site data. Existing Cooling Accuracy — Tell us what cooling equipment, if any, is already installed so energy estimates reflect the real system instead of assuming central air everywhere. Also includes floor-plan door/window placement refinements, updated legal disclosures on generated reports, and other fixes.

• Geothermal — GeoStar GSW catalog (COP/EER vs. entering source water temp from submittal SDW5-0025G), a source-temp-driven comparison engine with a seasonal closed-loop ground model, sizer view, PDF, and geothermalSizerConfig on Project. • Energy Savings Lab — isolated what-if simulator with value-type scenario copies, its own UserDefaults store, per-measure savings, and an owner-facing savings PDF. • Existing cooling equipment gate — new existingCoolingType/existingCoolingSEER2 + Equipment Schedule slot; .none now zeroes cooling energy, and the cooling curve is SEER2-anchored and capacity-scaled to the design load. • Cooling override fix — manual BTU overrides now split by SHR into the project sensible/latent totals, so the cooling card and the per-floor breakdown finally agree. • Heat-loss import — now also pulls design conditions and envelope construction onto the project, de-dupes repeated room names, and makes EnvelopeEditView read-only for imported rooms. • Misc — Building Energy Intelligence PDF, standalone airflow (CFM) report, bill-preferred fuel prices, designACH → equivalent CFM50 inverse, calibration confidence justification.

Place Windows & Doors on the Floor Plan You can now position windows and doors right on the 2D floor plan — no more guessing where they belong. • Add a window or door with the properties you already use, then drop it onto the plan. • Drag it onto any wall and it snaps into place, rotating to match the wall automatically. • Slide it along the wall to the exact spot. Openings can't overhang the ends of a wall, so placements always stay valid. • Tap any placed window or door to select it, then drag to reposition, edit its properties, or delete it. • Every opening stays tied to its wall, so your heat loss and heat gain numbers reflect exactly where the glass and doors are. Already entered a window or door? Swipe it in the room list and choose Place to drop it onto a wall later — no need to re-enter anything. Combine Projects Import the rooms from another project into this one, along with their 3D scans. Two units that share a single boiler or heating system can now be estimated together as one building. Cleaner Floor Editing The Edit Floor Envelope screen now edits the floor you tapped into — no extra floor picker to work around. Just adjust construction, insulation, ceiling, foundation, and infiltration for that level. Plus a range of improvements to domestic hot water sizing, equipment schedules, reports, and overall stability. As always, thanks for using ScanPlan HVAC. Have a request or found an issue? We'd love to hear from you.

Find Every Rebate & Incentive Instantly see the federal, state, and utility heat-pump rebates available at your project's address — powered by Rewiring America. No more digging through program websites. Financing Options (Beta) Browse low-interest loan and financing programs for the installation, matched to your project's location.

• Design by Floor — projects are organized into floor levels with per-story ceiling/foundation defaults; add rooms directly to a floor. • Start from a Floor Plan or Heat Loss Report — begin a project by importing a PDF; AI detects each room and which floor it's on. • Simpler Manual Room Entry — just length × width + exterior wall length, with tap-to-replace number fields. • Dual-Fuel Heat Pump Energy — Building Energy Intelligence now splits heat-pump electricity vs. backup fuel at your switchover temperature. • Condensing Boiler Comparison — add condensing gas/propane boilers to the Energy Cost Comparison. • Estimated-vs-Billed visual card, roof color in project defaults, "Conditioned Space Below" floor type, Apartment Complex building type.

Domestic hot water fix-now able to add larger tanks, multiple tanks Comfort performance - new slider that allows testing of different indoor heating and cooling temperatures Removed Beta items - will be reintroducing at a later time

Homeowner mode for designing heat pump system. Performance & Analysis Improvements Improved heating and cooling calculations. Updated domestic hot water sizing and planning tools. Expanded supported equipment data and comparisons. Refined reports and export output.

New in 1.5.3 • Comfort Performance Dashboard — See year-round comfort and efficiency from two years of local weather. Systems with multiple outdoor units now show one section per zone, each measured against the rooms it actually serves. • Cooling Cost Comparison — Compare cooling-season operating costs across SEER2 ratings for Mitsubishi and custom ducted units, side by side. • Air-to-Water Heat Pump Sizer — Size Viessmann Vitocal 100-AW monobloc systems alongside Ecodan, with full balance-point analysis and shareable reports. • Design My System — Homeowners get an automatic indoor and outdoor unit recommendation, grouped into single- and multi-zone systems from a guided wizard. Plus refinements and fixes throughout, including clearer equipment naming in cost comparisons.

METUS indoor units fix Added skylights for heatloss & heat gain more bug fixes Come across any bugs or improvement ideas? Email support@scanplanhvac.com ****Duct sizer not fully working as of yet

version: 1.5.1 date: 2026-07-26 title: Performance & Analysis Improvements notes: - Improved heating and cooling calculations. - Updated domestic hot water sizing and planning tools. - Improved gas piping sizing guidance. - Expanded supported equipment data and comparisons. - Refined reports and export output.

• Renamed to ScanPlan: HVAC Load & Ducts — clearer name, same powerful tool • AI Technical Assistant for Ecodan and METUS tech docs • AR duct measurement • Gas piping sizer (LP + NG, longest-length method) • Unico high-velocity system reports

Traditional Duct sizing Heat pump Defrost penalty updated to METUS application note 1041

- Fixed bug where changing indoor cooling temperature was not working - Now able to change from window to door and door to window

Export project PDFs

Version 1.4.7 ROI & Payback Analysis Enter a quoted installation cost and see your payback period, lifetime ROI, and a month-by-month savings breakdown — factoring in rebates, tax credits, financing, and maintenance savings. AI Material Capture Photograph existing equipment and materials on the job site. AI identifies and logs them with specs directly into your project, ready to review and export. AI Floor Plan Import Import floor plans from photos or PDFs. AI automatically detects rooms and dimensions to jump-start your load calculation. Equipment Schedule View a full equipment schedule for any project — all selected units, specs, and placements in one place. Multi-Project Export Export data across multiple projects at once for batch reporting and handoffs. Historical Weather Backfill Automatically fill in missing heating and cooling degree day data using NOAA historical climate records for your project address. Domestic Hot Water Sizing Size and compare DHW systems with full energy cost analysis and heat pump water heater comparisons. General improvements and stability fixes.

Viessmann Air to water sizer

Air to water heatpump sizer Bug fixes

Unico high velocity duct sizing

ManualJCalculator: extract PsychrometricHelper, OccupancyLoadCalculator, LatentLoadCalculator, and InternalGainsCalculator as reusable module-level types. Add OccupancyMode enum (residentialAuto, residentialCustom, commercialAssembly) with ASHRAE commercial activity presets. Ventilation latent now calculated via 0.68 × CFM × ΔGrains when ventilationCFM > 0 instead of hardcoded zero. Add per-room occupant count override UI in HVACLoadAnalysisView cooling tab. Add ManualJLatentTests covering all latent formulas, occupancy modes, and SHR edge cases. Also includes AI FloorPlanImportService and FloorPlanImportView for PDF/image floor plan import flow.

Bug Fix for export project backup

New: Heat Pump Sizer Domestic Hot water cost estimator

Manual Entry of information for devices without LIDAR Support for IPAD

manual entry of rooms, heating btus floor plan editing weather backfill Btu calculator and PDF export

What's New Fuel Prices & Utility Bills Enter your client's actual utility bills once and every comparison in the app uses the same numbers. Supports electricity, natural gas, heating oil, and propane. Add bills from multiple months and the app calculates a volume-weighted average unit price — so a heavy January gas bill counts more than a light July bill, giving you a more accurate annual rate. Real-Time EIA Pricing Connect a free EIA API key (eia.gov/opendata) to pull current residential fuel prices for your project's state directly from the U.S. Energy Information Administration. Prices update on demand and show the source and period, so you always know how current the numbers are. DHW Annual Operating Cost Comparison The domestic hot water comparison screen now shows estimated annual operating costs for every system — gas tank, electric tank, tankless, heat pump, and indirect. Systems are ranked cheapest to most expensive so you can have a clear cost conversation with your client.

Fixed Bug where promo codes were not working