Best Hvac Calculator Load Lite Apps

HVAC cooling and heating loads

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HVAC Load Calculator Manual J by Mike Watson

BTU Sizing for Contractors

Strong Contender

🔧 Utilities

4.8(37 ratings)

FreeIn-App Purchases

HVAC Load Calculator Manual J screenshot 1

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This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

HVAC Calculator: BTU & AC Load by Coffee Room SIA

BTU Calculator, CFM, Duct Size

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HVAC Calculator: BTU & AC Load screenshot 1

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More Hvac Calculator Load Lite apps to explore

HVAC Load Plus

$24.99

Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.

Detailed heating and cooling load calculations1000+ city weather databaseExtensive construction type data

(5)

Built for HVAC Specialists

HVAC Calculator Load Pro

Fast HVAC BTU calculationsResidential furnace & AC sizingClimate-aware calculations

This tool provides fast, accurate HVAC load calculations for residential systems. It helps professionals size furnaces, air conditioners, and gas equipment correctly, avoiding guesswork and spreadsheets for confident client recommendations and more closed bids.

(1)

BaseCalc HVAC Calculator

BTU CFM Duct Calculator

18 HVAC calculatorsBTU/CFM/Duct sizingPsychrometric calculations

This professional tool offers 18 HVAC calculators for field use, including BTU, CFM, duct sizing, and psychrometrics. It saves calculation history, job records, and allows PDF export of worksheets. The app works offline and features a high-contrast interface for job sites.

by Imogen Technologies, LLC

ACCA Manual J 8th Edition complianceDOE and NREL data integrationProfessional HVAC load calculations

This app assists HVAC professionals with accurate load calculations for residential and commercial projects. It adheres to industry-standard ACCA Manual J 8th Edition guidelines, integrating data from DOE and NREL for precise results.

💼 Business

(5)

Rule-of-thumb HVAC load calcs

HVAC Quick Load

$6.99

This app provides quick, rule-of-thumb HVAC load calculations for various building types. It estimates heating and cooling loads, as well as air flows, based on building type, area, and occupancy. Results can be emailed with an Excel spreadsheet attachment for further analysis.

Rule-of-thumb HVAC load calculationsSupports commercial, industrial, and residential buildingsEstimates cooling/heating loads and air flows

(3)

Ventora - AI HVAC Assistant

HVAC Calculators & Diagnostics

AI-powered HVAC diagnosticsProfessional-grade calculatorsOffline code references (IMC, UMC, ACCA)

This app provides HVAC technicians with an AI assistant for diagnostics, professional-grade calculators, and offline code references. It helps troubleshoot issues, size ducts, calculate efficiency ratings, and access industry standards quickly in the field.

PT Charts Superheat Subcooling

Instant refrigerant charge calculatorSuperheat calculator (non-TXV)Subcooling calculator (TXV)

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

🔍 Reference

(17K)

free

HVAC Residential Load Calcs

Calculate cool/heat loads...

$34.99

Perform detailed residential heating and cooling load calculations in the field. This app offers extensive data on building materials, weather, and project management for HVAC engineers and technicians.

Block and room-by-room load calculations1000+ city weather databaseExtensive construction material data

💼 Business

(3)

HVAC Load & Refrigerant Calc

Refrigerant, Manual J & BTU

Manual J Load Calculator

HVAC Load Calc: Manual J

Heating & cooling calculator

This app provides HVAC technicians with instant access to product information, including warranty status, inventory, and technical specifications. It offers real-time support, order tracking, and helpful calculators to streamline job management and business growth.

Real-time product availability & pricingOrder status and notificationsVideo/Text technical support

(1.6K)

HVAC Pro Calculator: NEC + P-T

Duct · Voltage · Refrigerant

BTU & Cooling Load SizingDuct Sizing CalculationsNEC Voltage Drop & Wire Sizing

This app provides essential tools for HVAC technicians and electricians, including BTU load sizing, duct calculations, and refrigerant pressure-temperature charts. It offers a free tier with core functions and an optional Pro upgrade for advanced features like voltage drop calculations and unlimited job saving.

ACCA Manual J/S/D Calculator

Manual J load calculationsManual D and S outputsOn-the-spot pricing

This app streamlines HVAC load calculations, enabling users to quickly generate Manual J, S, and D outputs. It allows for on-the-spot pricing and uses real-world data for accurate estimates, even while on-site.

Quick Heat Load Calculator

$9.99

This HVAC tool quickly calculates residential heating and cooling loads on-site. It streamlines the process for professionals, allowing for faster equipment sizing and more customer consultation time. Generate shareable PDF reports of your calculations.

Quick heat load calculationsOn-site measurementsAccurate equipment sizing

💼 Business

(3)

AC Calculator - HVAC Sizing

Air conditioner or Heat Pump

Calculate BTU/h capacityRecommend equipment typesConvert BTU, kW, Kcal, Tons

This utility app simplifies HVAC sizing by calculating BTU/h capacity and recommending equipment. It offers unit conversions, price estimates, and energy consumption comparisons. Advanced features can be unlocked via in-app purchases.

🔧 Utilities

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