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

Interface & Analysis Refinements Improved public-facing release notes presentation. Refined heat pump sizing display in energy cost comparison. General stability and workflow improvements. This app now uses a 7-day app-controlled free trial followed by a one-time non-consumable in-app purchase for lifetime access. There are no auto-renewable subscriptions and no automatic billing. After the trial ends, users can unlock full access with a one-time purchase.

• New: Export All Floor Plans • Generate a single, shareable PDF containing every room’s floor plan for the project. • Progress indicator and PDF preview for a smoother export experience. • Improved: HVAC Load Analysis • Clearer project summaries for heating and cooling, including airflow targets and recommended capacities. • Enhanced room-by-room breakdowns with sensible/latent loads, SHR, and percentage contributions. • Better Scanning Experience • Smart LiDAR support check prevents blank screens on unsupported devices. • Streamlined flow for scanning new rooms and reviewing results. • Energy & Weather Tools • Weather Backfill Analysis now uses your project’s setpoints for more accurate insights. • Energy Cost Comparison refinement for clearer results and easier decision-making. • Reports & Sharing • HVAC Report export now previews instantly and uses improved formatting for clarity. • Updated file naming for PDFs to keep your documents organized. • General • UI polish, performance improvements, and minor bug fixes.

CFMs on Floorplan exports Real heat pump curve data with defrost penalty

CURRENT ISSUE The screen allows selecting a system such as “LP 2 PSI System” even when there is no matching chart loaded in SampleGasSizingCharts.json. This causes the UI to show “No chart available for this configuration.” CURRENT KNOWN DATA The current sample charts only support propane second-stage low-pressure charts (for example 11" WC), not LP 2 PSI charts. GOAL Make the UI and view model smarter so unsupported configurations are handled gracefully and the user is guided toward valid chart-backed selections. REQUIREMENTS 1. Detect available configurations from the loaded charts - Use the loaded GasSizingChart data as the source of truth - Determine which fuel types, system types, and materials are actually available 2. Prevent invalid selections where possible - If a selected system has no matching charts for the current fuel type, either: a) disable that picker option, or b) automatically switch to the first valid available option - Prefer the least disruptive UX, but do not leave the screen in a dead-end state if a valid option exists 3. Improve the missing-chart message Replace the generic message with something more useful, for example: - “No LP 2 PSI chart has been loaded yet.” - “Available systems for Propane (LP): Second Stage Low Pressure” The exact text can vary, but it should clearly explain why there is no chart and what is available instead 4. Add fallback behavior on screen load - When GasPipingSizerView first loads, automatically pick a valid chart-backed configuration if one exists - Avoid defaulting to unsupported system types when the sample chart library does not contain them 5. Keep the architecture clean - Put chart availability / filtering logic in the view model, not the view - Do not hardcode assumptions outside the loaded chart metadata - Keep the design expandable for future support of LP 2 PSI, natural gas, and additional materials 6. Maintain current functionality - Do not break current sizing behavior - Do not change the deterministic chart-driven sizing engine - Do not refactor unrelated UI NICE TO HAVE - If practical, expose computed collections like: - availableFuelTypes - availableSystemTypes(for fuel:) - availableMaterials(for fuel:system:) - If the selected material becomes invalid after system/fuel changes, automatically update it to a valid material - If there is exactly one valid chart after filtering, auto-select it FILES LIKELY TO UPDATE - ViewModels/GasSizingViewModel.swift - Views/GasPipingSizerView.swift - Possibly any related picker/helper code DELIVERABLE Update the existing implementation so the Gas Pipe Sizer always defaults to a valid chart-backed configuration when available, avoids dead-end unsupported selections, and provides a clearer explanation when no matching chart exists.

New in this version: • Added Energy Analysis to compare seasonal heating costs across system types. • Added weather-based backfill calculations using historical weather data. • Added Weather Connect API support for improved weather-driven analysis. • Added propane fuel cost input for more accurate cost comparisons. • Improved iPhone layout and readability in Energy Analysis tables. • Updated privacy details for weather data usage.

- Refine boiler and DHW sizing flow and comparison integration - Add DHW comparison info button and help sheet content

Manual J Calculator: - Add psychrometric data per climate zone (outdoor/indoor grains, enthalpy) - Infiltration latent load now uses Q = 0.68 × CFM × Δgrains (climate-aware) - Basement rooms use 25% volume for infiltration (above-grade only) - Split internal gains into lighting, appliance sensible, and appliance latent - Add room-level SHR (sensible heat ratio) and cooling CFM - Add heating CFM for heat pump (35°F rise) and furnace (55°F rise) - Add system-level enthalpy-based CFM: Q_total / (4.5 × Δh) - Slab floor loss uses perimeter-based formula with F=0.73 - Add ventilation placeholders in structs for future ASHRAE 62.2 DHW System: - DHW Fixture Sizer now persists data per project (DHWFixtureSizerData model) - DHW System Sizing pulls all inputs from Fixture Sizer (no manual entry) - Shows "No Fixture Data" prompt when fixtures not yet entered - Remove install cost references from all water heater options and reports - Add DHWSizingData and DHWFixtureSizerData Codable models with migration Views: - Project dashboard shows both DHW Fixture Sizer and DHW System Sizing links - Room detail shows heat pump/furnace CFM, SHR, and room cooling CFM - Project analysis shows enthalpy-based airflow alongside sensible airflow - Project analysis shows humidity grains data per climate zone - Settings version now reads from bundle instead of hardcoded string

Add DHW sizing system with indirect tank calculator and cooling CFM calculations

Add live compass overlay to room scanning interface

What's New in Version 1.1.0 • Improved subscription and trial period management • Enhanced Settings screen with detailed app information • Bug fixes and performance improvements