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Leal Online Heatload Calculator

Professional HVAC Load Calculation Software

Accurate cooling & heating load calculations for residential, commercial, and industrial spaces.

Leal Heatload Calculator is a professional HVAC load calculation software designed for engineers, contractors, and consultants. Based on ASHRAE standards, it calculates cooling and heating loads with precision, helping teams design efficient HVAC systems for any building type.

Trusted by HVAC professionals for accurate thermal analysis and professional documentation.

Launch Calculator Explore Features
Leal Heatload Calculator Dashboard Preview
Professional HVAC Engineering Tool

Accurate cooling & heating load calculations for residential, commercial, and industrial spaces.

Leal Heatload Calculator is a professional HVAC load calculation software designed for engineers, contractors, and consultants. It calculates cooling and heating loads based on ASHRAE standards, helping teams design efficient HVAC systems with precision.

Based on ASHRAE CLTD/CLF method and industry best practices.

Launch Calculator Explore Features
3.5 TR
Cooling Load
42k BTU/h
Heating Load

Live calculation preview

Leal Heatload

Professional HVAC load calculation software.

ASHRAE-compliant algorithms for accurate cooling and heating load calculations. Trusted by engineers, contractors, and consultants worldwide.

Start Calculating View Features
ASHRAE CLTD/CLF Compliant
Instant PDF Reports
Cloud-Based Storage
Cloud-Based Storage
Live Load Preview
Building Area 2,500 sq ft
Occupants 25 people
Equipment Load 5,000 W
Cooling Load
3.5 TR
Heating Load
42k BTU/h
Why Engineers Choose Us

Focused on precision, speed,
and professional documentation

ASHRAE Compliant

Calculations based on ASHRAE CLTD/CLF method and industry standards for accurate results.

Professional Reports

Generate detailed PDF reports with full calculation traceability for client submissions.

Cloud Access

Save and access all calculations from anywhere, on any device.

Ready to run your first heat load calculation?

Set up in minutes and get accurate cooling and heating loads for any building.

Get started How it works
Core Capabilities

Features built for HVAC professionals

Leal Heatload Calculator combines multiple calculation methods, material databases, and reporting tools for complete thermal analysis.

Multiple Calculation Methods

Choose from ASHRAE CLTD/CLF, Residential Load Factors, or Heat Balance Method based on your project type.

  • ASHRAE CLTD/CLF for commercial buildings
  • Residential Load Factors (Manual J)
  • Heat Balance Method for complex spaces
Material Library

Access pre-loaded U-values for common construction materials and create custom assemblies.

  • 3,000+ pre-loaded constructions
  • Custom U-value calculator
  • ASHRAE-compliant material properties
Weather Data Integration

Access climate data for thousands of locations worldwide for accurate outdoor conditions.

  • 10,000+ global locations
  • TMY weather files support
  • Design day temperature data
Professional Reports

Generate comprehensive PDF reports with all inputs, calculations, and results.

  • Full calculation traceability
  • Client-ready format
  • Export to CSV/JSON

See the complete calculation workflow

Run building analysis, generate load calculations, and export professional reports in minutes.

Request Demo How it works
Comprehensive Analysis

Load components we calculate

Complete thermal analysis for accurate HVAC system sizing

Solar Heat Gain

Through windows & walls

Transmission Load

Through building envelope

Occupant Load

Heat from people

Lighting Load

From light fixtures

Equipment Load

From appliances

Infiltration

Air leakage

Industry Standards

Calculation methods we support

Proven engineering formulas recognized worldwide by HVAC professionals

ASHRAE CLTD/CLF

Cooling Load Temperature Difference / Cooling Load Factor method for commercial buildings. Hourly load profiles for 24-hour analysis.

Residential Load Factors

Simplified block load calculation method for residential and light commercial applications based on ACCA Manual J principles.

Heat Balance Method

Advanced calculation method for complex buildings using radiant time series for detailed thermal analysis.

Simple Process

How Leal Heatload Calculator works

A practical workflow from building data entry to professional report generation

1
Input Building Data

Enter dimensions, orientation, and construction details

2
Select Materials

Choose from material library or create custom assemblies

3
Add Internal Loads

Include occupants, lighting, and equipment

4
Run Calculation

Get instant cooling and heating load results

5
Review Analysis

Check detailed breakdown of all load components

6
Export Report

Download professional PDF reports

Ready to run your first heat load calculation?

Set up your workspace and test the complete building → materials → loads → calculation → report journey.

Get started
FAQs - Leal Software Solution

Frequently Asked Questions

Have questions about our software products, ERP solutions, or digital tools? Here are some of the most common queries about Leal Software Solution and our innovative platforms.

Ask Your Question

A: We offer innovative software solutions such as TaskTrak Hub, Odoo Cloud ERP, Leal GADraw, and the Leal HVAC Heatload Calculator, designed for automation, productivity, and technical efficiency across industries.

A: Yes, all our software solutions are highly customizable. We tailor each application according to your organization’s workflow, business logic, and technical requirements.

A: We cater to multiple sectors including HVAC, MEP, construction, manufacturing, and IT—offering digital tools and ERP systems that streamline project execution and management.

A: Absolutely. We offer product onboarding, technical support, and training sessions to ensure smooth implementation and maximum value from our tools and ERP systems.

A: You can reach us through the contact form on our website. Our team will schedule a demo, understand your requirements,
and recommend the most suitable Leal product for your business.

Request A Consultation

Digitize Your Business with Leal Software Solution

Quick Response Within 24 Hours
Expert Product Support

Looking to automate your workflow or boost business efficiency? Leal Software Solution provides customized digital tools such as TaskTrak Hub, Odoo Cloud ERP, Leal GADraw, and Leal HVAC Heatload Calculator. Share your details below and our experts will connect with you to discuss the best solution for your business.

Need immediate assistance?

+91-7410016111/13/14

    Leal Software Solution Pvt Ltd

    Leal Software Solution Pvt. Ltd. is a Pune-based IT company offering innovative products and digital solutions — from business automation to ERP systems and HVAC engineering tools — designed to enhance productivity and growth.

    Get In Touch

    Office No. 621, Vantage Capital, Laxmi Chowk Road, Hinjawadi Phase 1, Pimpri-Chinchwad, Maharashtra 411057

    +91 7410016111 / 13 / 14

    enquiry@lealsolution.com

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