 This gift certificate entitles the holderr $25 in products from 123Supply.com or The Training Source at www.hvactraining.com $25.00 |  In this video, we walk you through the basics of superheat charging, explaining step-by-step how it's done and how a system is evaluated. Perfect for both new and experienced technicians. TIME: 20:55 Regular price: $47.95 Sale price: $24.95 |  Trane Duct Calculator. Used to determine sizes in english and metric. $18.95 |
 This video takes you
through step-by-step troubleshooting, disassembly and repair of most common failures you will see in room air conditioners. TIME: 32:42 Regular price: $47.95 Sale price: $24.95 |  A great gift for the hard to buy for technical professional! We will include a catalog of our fast moving items to help them decide. These come in $50 increments and will be shipped free. $50.00 |  Here's a humorous look at some problems encountered with a customer who is unwilling to be reasonable. Length 8:24 Regular price: $39.00 Sale price: $24.95 |
 In this very funny portrayal, we make it obvious how poor appearance, attitude and mannerisms can cause you to lose your professional image. Length 8:19 Regular price: $39.00 Sale price: $24.95 |  Eliminate the mystery behind the operation of a heat pump with this simple, down-to-earth video. we explain the three heat
pump cycles, the operation of the reversing valve, system metering device and supplemental heat systems. Animated, color
graphics show what happens when the heat pump changes cycles. TIME:23:02 Regular price: $47.95 Sale price: $24.95 |  10' feet long. This Heavy Duty Wirewound Brush will keep your dryer vent clean. This is made of wire-wound steel, not plastic. Will last for years and years. Don't let your dryer vent get clogged up and become a potential fire hazard. $19.95 |
 For use with HCFC-22 Systems (GT24-01) $7.95 |  Used for R-410A Only $7.95 |  This is the same manual used in our popular combustion & venting seminar. Includes just about everything you need on installation & service of various gas furnaces in regard to venting requirements & combustion air. $22.00 |
| Click Here for a menu of Theory, Principles & Fundamentals Videos for HVAC! |  Troubleshooting ignition problems in heating systems can be difficult. With this video we give you a step by step approach to
locating the faults plus much more information on how the system works and component location and disassembly. TIME: 37:23 Regular price: $47.95 Sale price: $24.95 |