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Pulse Valves
Airflow Serenity
“Wildenhaus”: Home Performance Assessment Knowledge Base (Workforce Fundamentals)
Refrigerant Charge Measurements & Tool Use
The Small HVAC Owner’s Guide to AI Workflows That Actually Work
When the Monster Sounds Confident
Why Every HVAC Company Needs a Home Performance Contractor
What’s New for Copeland Scroll Compressors with A1, A2L, and A3 Refrigerants
What the Fractionation Is Going On?
Valuable DH Hack using the Honeywell Vision Pro 8000
Using Building Science to Close at the Kitchen Table
Understanding Thermistors
Search results in Videos
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How to Install a Toilet – Complete Step by Step Guide in 3D
Capillary Tube Repair and Brazing Class
How to Prevent HVAC Callbacks | Maintenance Service Checklist Explained – Part 1
HVAC Thermistor Training: Testing Methods, Common Failures & Splicing
Commercial HVAC/R Systems Tune-Up & Troubleshooting: From PM Lists to Callback Prevention
EEVMate Tool: Testing Electronic Expansion Valves (EEVs) in Mini Splits & VRF Systems
Standard Operating Procedures for HVAC Service Calls
HVAC Drain Lines: Installation, Troubleshooting & Best Practices
How to Fix Attic Humidity Problems with Santa Fe Ultra Series Dehumidifier
HVAC Multimeter Skills: Continuity vs Resistance & Diode Testing
Thermal Imaging Camera Training for HVAC Techs
Ductboard Plenum Replacement: Measuring, Cutting & Installing
Search results in Tech Tips
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The EPA’s 15-Pound Refrigerant Threshold in 2026
As of January 1, 2026, refrigerant regulations in the United States have undergone YET ANOTHER big shift. Per Subsection
Key Takeaways From the 7th Annual HVACR Training Symposium
This is a recap of the 7th Annual HVACR Training Symposium session, with a few key themes and takeaways. If you missed t
How Attic Designs Need to Account for Heat and Moisture
This tech tip was heavily inspired by one aspect of Rick Sims’s 2021 HVACR Training Symposium session titled “Conductsat
Motor Overheating
An important rating on motors is the AMBIENT temperature rating at which the motor can operate. This rating refers to t
Attic Equipment Codes
I didn't install this unit. First off, attic installations are among my least favorite applications from the standpoints
The Ultimate Guide to Test Ports, Tools, and Measurement Methods
I'd like to give a special thanks to Adam Mufich (NCI), Sam Myers (Retrotec), and Ty Branaman (love2hvac and the GRIT Fo
Thermal Balance Point vs. Economic Balance Point
The thermal balance point is the point at which a heat pump can move heat into the home at the same rate the home loses
A Field Guide to Conductors for HVAC Techs
HVAC work is never just “HVAC” work. One minute you're brazing copper, and the next you're troubleshooting a
Ohms/Continuity Basics
Some quick basics: An ohmmeter is used to measure the resistance to electrical flow between two points. The ohmmeter is
That Rusty Coil/Galvanic Corrosion
How many times have you looked at the bottom right-hand side of an evaporator coil and seen all sorts of rust, even on a
Don’t Squeeze a Radiant Barrier
You are probably all familiar with radiant barriers. Sometimes, it's thin foil draped under the roof deck. Other times,
Do You Replace the Contactor and Capacitor With a New Compressor?
Replacing a compressor is expensive, time-consuming, and physically taxing. If we are replacing a compressor, I want us
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Review of Vacuum for Service Engineers
Refrigerant Charging and Service Procedures for Air Conditioning
Bob’s House
Commercial Refrigeration for Air Conditioning Technicians
Refrigeration & Air Conditioning Technology
Fundamentals of HVACR
Understanding Manual D
Electricity for Refrigeration, Heating, and Air Conditioning
The Home Comfort Book
Modern Hydronic Heating
Search results in Apps
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Browning® Toolbox Technician™
Regal Beloit America Incorporated
The FREE Browning® Toolbox Technician™ app delivers an indispensable toolset for all HVAC contractors and maintenance personnel, including calculation tools, conversion tools, GPS enabled distributor locator, plus informative reference, installation and troubleshooting guides for everything from bearings to v-belts. This app also features the revolutionary V-Belt ID Wizard™, empowering personnel in the field to quickly identify an installed belt, even when the product ID is unknown.
Browning® Toolbox Technician™ features:
- V-belt troubleshooting
- V-belt selection guide
- Bearing basics & FAQs
- Air handler bearing interchange
- V-belt ID Wizard™ with part lookup & product images
- Where to Buy with GPS option
- Various conversion tools
- Efficiency calculators
- Much more!
Ref Tools
Danfoss A/S
The essential, all-in-one mobile app for air conditioning and refrigeration technicians
Get the guidance, support, information, and tools you need—on the job and infield. Ref Tools is a free, powerful app that contains essential tools every air conditioning and refrigeration technician needs in their digital toolbelt.
Previously known as Refrigerant Slider, Ref Tools represents the next digital evolution in the cooling industry. HVACR tools are becoming smarter, better, and easier to use, and Ref Tools puts them in the palm of your hand.
Our latest update greatly improves the in-app podcast experience—you can now subscribe to podcasts, enable notifications for new episodes, filter podcasts by language, and enjoy a new, streamlined player.
Measure Quick Hvac
MeasureQUICK
With measure Quick HVAC you can diagnose system problems from the most trivial to the most complex.
Our powerful data aggregation tools, coupled with just-in-time education, will increase a technicians ability to solve problems on the job site, ultimately leading to a huge increase in productivity.
Measure Quick makes measurement science work!
HVAC School
By Techs for Techs
The app that helps you remember some things you forgot along the way, as well as helps you remember some things you forgot to know in the first place.For all current and aspiring HVAC technicians: HVAC School is the premiere source for knowledge and success in the HVAC industry.
With this app you can:
Listen to all episodes of the HVAC School podcast, a podcast committed to bringing you relevant and up to date knowledge of the HVAC industry and what it means to be an HVAC technician.
Read tech tip articles written by industry professionals on various topics to help build your knowledge base and understanding of HVAC theory
Interact with calculators that employ common HVAC equations to help build your understanding of important HVAC mathematics
