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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.

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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
7.5
Support
5.0
Value
5.0
Integrations
7.0
AI Capabilities
1.5

Customer Reviews

Features

56 features confirmed across 12categories· Showing confirmed capabilities only

Estimating & Quoting15features

Quoting & EstimatesRoom-by-room analysisBlueprint Upload With AI Room RecognitionCreate and Store All Design Plans ElectronicallyAutomatic Building Orientation AdjustmentBlueprint Upload And AI AnalysisConstruction Data LibraryDesign Development WizardDuct Load Calculations
Show 7 more
Envelope and Window Input CustomizationTemplate Creation for Similar ProjectsWhole Home Sizing InputsWinter Humidification Requirement CalculationSystem DesignConstruction material library (walls, roofs, windows, etc.)HVAC Equipment LocatorDigital TakeoffRoom-by-room cooling and heating load calculation

Compliance & Safety11features

Manual J CalculationsDetailed appliance, duct, infiltration, and ventilation load modelingDesign Load CalculationACCA Quality Installation Certification GenerationGlobal Weather DatabaseHeating/Cooling Output CalculationReal-Time CalculationsReal-Time Superheat and Subcool CalculationsEnergy ModelingAppliance load modeling
Show 3 more
Building Material Catalog Selection for Accurate CalculationsCode Enforcement TrackingManual J8 complianceDetailed Appliance, Duct, Infiltration, And Ventilation Load Modeling

Platform & Customization9features

Document ManagementDesign documentation and reportingData ExportExcel spreadsheet exportBackup And RestoreCloud Project Synchronization and SharingImperial Or Metric Unit SelectionUnit ConversionUnit conversion (IP/SI)Approval ManagementSend reports for approval before you leaveCustom TemplatesTemplate-based project creation
Show 1 more
Imperial And Metric Support

Reporting & Analytics8features

ReportingPDF report generationAnalyticsPdf And Excel Report GenerationAudit Report GenerationCreate and Send ReportsData Export for Graphing in ExcelDesign Documentation And ReportingLoad Breakdown Reports

Scheduling & Dispatch3features

Project ManagementCloud project sharingWeather Data IntegrationGlobal weather database (1000+ cities)Project DeletionProject deletion

Training & Education3features

NATE Certification PrepInstant calculation resultsDuct And Envelope Tightness CertificationBusiness Management & OperationsComprehensive construction data library

Equipment & Asset Management2features

Equipment TrackingEquipment LocatorReal-Time System Updates and Smart Alerts

Hardware Features1feature

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

Customer Communication1feature

Email Integration

Inventory Management1feature

Inventory ManagementConstruction material library

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.”