Skip to main content

HVAC ResLoad-J

by Carmel Software Corporation

Last updated Mar 29, 2026 · 1 revision

ACCA-approved Manual J 8th Edition mobile app with instant load calculations, room-by-room analysis, and equipment locator for HVAC contractors.

Media

About This Product

HVAC ResLoad-J is an ACCA-approved iPad app performing peak cooling and heating load calculations per Manual J8 for residential and light commercial buildings. Features weather data for thousands of cities, hundreds of construction types, instant total load results as fields update, and unlimited projects with both block and room-by-room load capabilities.

Capabilities

How this product is delivered and what's included out of the box.

Mobile app
Available
Free trial
No
Free tier
No
Public API
No
Deployment
Cloud

Certifications & Approvals

Independent industry credentials this product holds.

ACCA Approved

Independently approved by the Air Conditioning Contractors of America to perform Manual J load calculations and/or Manual D duct sizing in accordance with ACCA's published standards. ACCA approval is the industry's reference standard for HVAC design software.

  • Full Manual J load calculations

Trust & Privacy

Each statement below was extracted directly from the vendor's privacy policy or terms of service. Click "source" to read it in context.

Doesn't train AI models on your data

"We anonymously mine the data to gather trends in equipment selection"
Confidence: medium Source

Doesn't share data with third parties

"We do NOT share the data with third-parties"
Confidence: high Source

Data export available on request

"In certain cases, you may also have the right to receive data in a structured, commonly used and machine-readable format and have the right to transmit those data to another controller."
Confidence: medium Source

Data deletion honored on request

"Under certain circumstances, you may be entitled to request that we erase the personal data"
Confidence: medium Source

Primary policy document: https://www.carmelsoft.com/Carmel-Software-Privacy-Policy

FSH Score Breakdown

Ease of Use
7.0
Features
6.3
Support
5.0
Value
5.0
Integrations
7.0
AI Capabilities
1.5

Features

62 features confirmed across 12categories· Showing confirmed capabilities only

Estimating & Quoting16features

Quoting & EstimatesRoom-by-room analysisBlueprint Upload With AI Room RecognitionConstruction Data LibraryConstruction material databaseEnvelope and Window Input CustomizationEnvelope and window input customizationAutomatic Building Orientation AdjustmentBlueprint Upload And AI AnalysisDuct Load CalculationsTemplate Creation for Similar Projects
Show 8 more
Whole Home Sizing InputsWinter Humidification Requirement CalculationDesign Development WizardRoom-by-room design workflowHVAC Equipment LocatorBuilt-in HVAC Equipment LocatorSystem DesignConstruction material library (walls, roofs, windows, etc.)Create and Store All Design Plans ElectronicallyUnlimited project storage and template reuseChange OrdersProject orientation changeDigital TakeoffRoom-by-room cooling and heating load calculation

Compliance & Safety12features

Block Load CalculationsAppliance load modelingDetailed Appliance, Duct, Infiltration, And Ventilation Load ModelingAppliance, duct, infiltration, and ventilation load modelingDesign Load CalculationACCA Quality Installation Certification GenerationACCA-approved reportsGlobal Weather DatabaseHeating/Cooling Output CalculationReal-Time CalculationsReal-Time Superheat and Subcool Calculations
Show 4 more
Energy ModelingAppliance load modelingBuilding Material Catalog Selection for Accurate CalculationsCode Enforcement TrackingManual J8 complianceDOE Energy SimulationInstantaneous calculation engine

Platform & Customization11features

Backup And RestoreCloud project sync and sharingDocument ManagementDesign documentation and reportingImperial And Metric SupportIP and SI unit supportImperial Or Metric Unit SelectionIP and SI unit conversionCustom TemplatesData ExportUnit ConversionUnit conversion (IP/SI)Cloud Project Synchronization and SharingCloud project synchronization
Show 3 more
Approval ManagementSend reports for approval before you leaveBIM Content LibraryConstruction material libraryRole-Based Access ControlUser role management (administrators, technicians, clients)

Reporting & Analytics9features

AnalyticsReportingAudit Report GenerationInput report generationPdf And Excel Report GenerationExcel report generationCreate and Send ReportsShare reports via email, text, and printerData Export for Graphing in ExcelDesign Documentation And ReportingGraph and Table Data VisualizationPie chart visualization
Show 1 more
Load Breakdown ReportsGraphical load breakdown visualization

Training & Education5features

NATE Certification PrepInstant calculation resultsOn-Demand Video LibraryVideo tutorialsManual J/S/D Load CalculationsDuct and infiltration load modelingImmediate Test ResultsInstantaneous calculation resultsBusiness Management & OperationsComprehensive construction data library

Scheduling & Dispatch3features

Project ManagementCloud project sharingProject DeletionProject deletionWeather Data IntegrationGlobal weather database for 1000+ cities

Hardware Features1feature

Multi-Unit MeasurementMetric (SI) and English (IP) unit support

Customer Communication1feature

Email Integration

Inventory Management1feature

Inventory ManagementConstruction material library

Equipment & Asset Management1feature

Real-Time System Updates and Smart Alerts

AI & Automation1feature

Automation RulesRoom-by-room design workflow

Certifications & Standards1feature

ACCA Approved — Full Manual J

Integrations 3 across 3 categories

Productivity 1
Microsoft Excel CSV
Data & Automation 1
HPXML Native
Industry-Specific 1
ResCheck Native

Pricing

Model
Subscription
Starting at
Contact for pricing
Notes
$199.99 one-time purchase on the Apple App Store. Professional-grade pricing reflects ACCA certification and comprehensive Manual J8 capabilities. No Android version available.

Related Products 2 across 1 category

Alternatives & Competitors

Right-J Evidence-backed Fair
Right-J Good match
Why these are related — sources 2
  • hvacprosales.com

    “Carmelsoft HVAC ResLoad-J is an iOS-exclusive ... ACCA-approved Manual J8 ... [co-listed with Wrightsoft]”

  • contractormag.com

    “[ResLoad-J] is an ACCA-approved Manual J8 HVAC residential load calc application ... [reviewed alongside Wrightsoft RMC as iPad apps]”

CoolCalc Evidence-backed Good
CoolCalc Partial match
Why these are related — sources 1
  • hvacprosales.com

    “For smaller businesses or individual contractors ... Cool Calc or Carmelsoft HVAC ResLoad-J might be excellent choices.”