436. Why Surge Protectors For My HVAC Unit with Scott Cole
28 Jan 2026 · 3 min
Derek Cole and Scott Cole explain why your HVAC system needs surge protection. Lightning arrestors protect high-voltage equipment while standard surge protectors guard low-voltage parts like thermostats. Storm-prone regions face the highest risk.
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Foreign. I'm Derek Cole, host of the Derek Cole Podcast, and we believe in taking the time to explain how things work for your air at home or your business. Let's get into today's episode. Please listen closely and maybe even take some notes so you can remember these insights of home comfort and energy savings. And share this episode with three of your friends because we all need to share better ways to be more comfortable at home. Be sure to tag me or DM me on Instagram Derek Mcole so I can say hi. Thanks again for listening. And let's begin.
Why do we need. Well, first of all, we have a lot of surge protectors on computers and TVs and stuff like that, but we don't see many on heating air units. And that's really one of the most expensive appliances.
Yeah, absolutely. And there's no good method for surge protectors on heat and air units. So what you generally see when you do want to protect your unit is a lightning arrestor, something that protects large surges, because your general surge protectors that you're using on your computers and all that are detecting very small amounts of surges to protect items that run on very low voltage. Whereas your unit has items that are high voltage but also has circuit boards that are low voltage. There are different levels of lightning arrestors. There's one for your low voltage portion of the unit. There's one for your high voltage portion of the unit. Definitely a good idea. Especially in the Southeast, where lightning storms are very common in the summertime. And over the course of a summer, we'll have lightning issues with compressors at least once a week that we go out and address and have to sign an affidavit that the enlightening constructor unit.
And two, we have a lot of. You said a lot of storms, but we have.
I mean, it's 95 degrees. One minute and five minutes later, it's 75 degrees. I imagine that's a problem with power.
Yeah. Or, you know, issues where the power's out and, you know, the power first comes back on. We get a surge of power when the power abruptly ends and has those flickers that we all experience. The voltage can change over that time period and cause high voltage spikes and do some damage.
Yeah.
So lightning arrester, Good idea.
Lighting arrestor. Very good idea.
Yeah.
So we have a low voltage, which we sell a lot on the zone systems, things like that. And then we have a standard one that we install for the units. If you have two pieces, should one be on each outdoor and indoor piece.
Absolutely. And everywhere there's a, there's a connection to your main power source, your panel. You need to have a lighting arrestor. You would, you know, if you have two pieces, you put one on the outdoor unit, the indoor unit, and then there's a low voltage, your thermostat wire that goes between the two units. You would tie your low voltage lightning arrester to that portion of it. And if you wanted something, they do make whole house surge protectors that go in your panel that are more suited for handling surges, but for your unit itself, you're generally dealing with lightning arrestors.
Okay, I hope you enjoyed this episode of the Derek Cole Podcast. Tell some people about this episode. It's on each of us really, to spread the better ways to be healthier and more comfortable in our homes and workspaces. I'm asking you to be the dealer of positive and life changing messages in your circle of influence. Take a screenshot right now and share the screenshot and the length of this episode with three of your friends today. Share on social Media Use the hashtag Healthy Home. That's hashtag Healthy Home. We are always giving away shout outs prizes to our community. If you would like to help me personally then please rate and review on Apple podcast. Give us some stars. Leave a review because that stuff actually does help and I read all of the comments. So my last thought for today, please remember you deserve better air at home and greater comfort at home. Don't settle for being uncomfortable for your heating air every single month. We are so thankful for having you here in our community and be sure to go deeper with us at simmons1hour.com. It.
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