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It's the last week of the Johnstone HVAC Insight Challenge. Don't forget to tune into the HVAC Nationals broadcast next Friday, December 13, on CBS Sports Network. What is the typical temperature range for superheat in a properly functioning air conditioning system?

Week 12 of our Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? Which component in an air conditioner removes the heat from the refrigerant and expels it outside?

It's week 11 of our Johnstone HVAC Insight Challenge. Think you’ve got what it takes to be the next HVAC national champion? What is the main function of the reversing valve in a heat pump system?

Week 10 of our Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? Answer the poll on for a chance to win. What technique can be used to make a good flare on copper tubing?

It's week 9 of our Johnstone HVAC Insight Challenge. When under a deep vacuum, a hermetic refrigeration compressor's... A. Keep oil warm to prevent breakdown. B. Insulation boosts dielectric strength. C. De-energize crankcase heater. D. Energizing may damage windings.

Week 8 of our Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? When is using a bubble solution leak detection more appropriate than using an electronic leak detector?

It's week 7 of our Johnstone HVAC Insight Challenge. Think you’ve got what it takes to be the next HVAC national champion? Past questions are open through the end of the challenge. What is the primary reason for pulling a deep vacuum on a refrigeration system?

Week 6 of our Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? Past questions are open through the end of the challenge. Where should the liquid line filter drier be located?

It's week 5 of our Johnstone HVAC Insight Challenge. Think you’ve got what it takes to be the next HVAC national champion? Answer the poll for a chance to win. What is the purpose of using flux when soldering?

Week 4 of our Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? Answer the poll for a chance to win. What is the benefit of using helium as a trace gas with nitrogen for pressure testing?

It's week 3 of our Johnstone HVAC Insight Challenge. Think you’ve got what it takes to be the next HVAC national champion? When performing a leak detection, the movement of the leak detector around the refrigerant line should be at least...what?

Week 2 of the Johnstone HVAC Insight Challenge is here. Think you’ve got what it takes to be the next HVAC national champion? Past questions are open through the end of the challenge. What is the importance of nitrogen gas flowing in the pipe/tubing during brazing?

You had us at Milwaukee! Follow us and join us every Friday to answer the HVAC Insight Challenge questions. The top responder will win the impressive Milwaukee 4-Piece Cordless Combo. Top participants will also receive a unique discount code as a congratulations. Week one up now.

It’s week 1 of our Johnstone HVAC Insight Challenge! Think you’ve got what it takes to be the next HVAC national champion? Stay tuned for our prize giveaway announcement later today. What tool should be used to tighten the joints and fittings in split systems?

Can you believe 80% of the contestants shop at Johnstone Supply? Meet our HVAC National Championship Pro finalists for 2024: Alex Ivey, Craig Childress, Curtis Harrington, Dagner Espinosa, Jerrad Porter, Joe Rittorno, Nathan Richards, and Shawn Price. Go get ‘em!

Think you got what it takes to be the next HVAC National Champion? Test your skills over the next 13 weeks. We’ve partnered with @NATEtechnicians to bring you the Johnstone HVAC Insight Challenge. Think you’ve got what it takes? Stay tuned for our Milwaukee prize giveaway.

Our friends at @YokohamaTC and @HvacNationals are giving away a FREE set of tires for a vehicle in your fleet. Rally your colleagues, submit and you could win! Enter now at hvactionals.com and include your company name when you take the challenge!

Congratulations to these 38 Professionals who are advancing for their stellar performance in our Round 1 Quiz presented by American Standard and Trane. They will face off in our round 2 the @JSCorp_Portland At Home Kit to earn their place down in Tampa. #ETCS23 #HVACNationals

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