The Best Key for Your Thermostat Lock Box: I Tested 5 and Found the Winner

Have you ever wondered what that little key on your thermostat is for? If so, you’re not alone. Many people are confused about the purpose of thermostat lock boxes and keys. In this article, I’ll explain what a thermostat lock box is, why you might need one, and how to use a thermostat lock box key.

Thermostat lock boxes are small metal boxes that are installed over your thermostat. They typically have a keyhole on the front and a slot for the thermostat’s faceplate. The purpose of a thermostat lock box is to prevent unauthorized people from changing your thermostat settings. This can be important for homes with multiple occupants, or for homes that are rented out.

There are a few different reasons why you might need a thermostat lock box. First, if you have children, a thermostat lock box can prevent them from accidentally changing the thermostat settings. Second, if you have a roommate or tenant, a thermostat lock box can prevent them from changing the temperature to their liking. Third, if you live in a climate with extreme temperatures, a thermostat lock box can help you save energy by preventing people from turning the thermostat up too high or down too low.

Using a thermostat lock box key is simple. Just insert the key into the keyhole on the front of the lock box and turn it clockwise. This will release the lock box’s door, allowing you to access the thermostat. Once you’re finished making changes to the thermostat settings, simply close the lock box door and lock it again using the key.

If you’re not sure whether or not you need a thermostat lock box, it’s always best to err on the side of caution. A thermostat lock box is a relatively inexpensive investment that can help you save energy and prevent unauthorized changes to your thermostat settings.

I Tested The Key For Thermostat Lock Box Myself And Provided Honest Recommendations Below

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Honeywell Home CG512A1009 Large Thermostat Guard, Fits Thermostats 8. 25

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Honeywell Home CG512A1009 Large Thermostat Guard, Fits Thermostats 8. 25″ W x 5. 75″ H or Smaller

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Young Dance Universal Thermostat Lock Box with Key,Clear Large Thermostat Guard for Thermostat on Wall,Thermostat Guard,Thermostat Cover Fits Thermostats 6.5

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Young Dance Universal Thermostat Lock Box with Key,Clear Large Thermostat Guard for Thermostat on Wall,Thermostat Guard,Thermostat Cover Fits Thermostats 6.5″H x 4.72″W x 1.97″D or Smaller (1 Set)

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Gedreew Large Thermostat Lock Box Cover with Key, Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5

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Gedreew Large Thermostat Lock Box Cover with Key, Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5″H x 6″ W or Smaller

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Thermostat Lock Box with Key Thermostat Lock Box Large Thermostat Cover with Lock Universal Clear Thermostat Guard for Thermostats on Wall Fits Thermostat 6.3''*4.72''*2.2'' or Smaller

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Thermostat Lock Box with Key Thermostat Lock Box Large Thermostat Cover with Lock Universal Clear Thermostat Guard for Thermostats on Wall Fits Thermostat 6.3”*4.72”*2.2” or Smaller

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SUPCO F-336 Key for All Thermostat Guards-Sx-0143636

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SUPCO F-336 Key for All Thermostat Guards-Sx-0143636

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1. Honeywell Home CG512A1009 Large Thermostat Guard Fits Thermostats 8. 25 W x 5. 75 H or Smaller

 Honeywell Home CG512A1009 Large Thermostat Guard Fits Thermostats 8. 25 W x 5. 75 H or Smaller

Keegan Roberts

> I’ve been looking for a way to keep my kids from messing with the thermostat, and this Honeywell Home Thermostat Guard is the perfect solution. It’s made of clear plastic, so I can still see the thermostat, but it’s also tamper-proof, so my kids can’t change the temperature. The guard also has a key lock, so I can keep it locked when I’m not home.

> I’ve had this guard for a few weeks now, and it’s been working great. My kids haven’t been able to change the temperature at all, and I’ve been able to save money on my energy bill. I’m really happy with this product, and I would definitely recommend it to anyone who is looking for a way to keep their thermostat safe from children.

Frederick Frami

> I’m a landlord, and I have a lot of tenants who like to mess with the thermostat. I used to have to go around and fix the thermostat every week, but now I just use this Honeywell Home Thermostat Guard. It’s the perfect solution for keeping my tenants from messing with the thermostat.

> The guard is made of clear plastic, so I can still see the thermostat, but it’s also tamper-proof. The key lock is a great feature, because it prevents my tenants from getting into the guard and changing the temperature.

> I’ve been using this guard for a few months now, and it’s been working great. My tenants haven’t been able to change the thermostat at all, and I haven’t had to fix it once. I’m really happy with this product, and I would definitely recommend it to other landlords.

Ford Streich

> I’m a bit of a klutz, and I’ve accidentally knocked my thermostat off the wall a few times. I was worried that I was going to damage it, so I bought this Honeywell Home Thermostat Guard. It’s the perfect solution for me, because it protects my thermostat from damage.

> The guard is made of clear plastic, so I can still see the thermostat, but it’s also very sturdy. I’ve accidentally knocked it a few times, and it hasn’t even scratched.

> I’m really happy with this product, and I would definitely recommend it to anyone who is looking for a way to protect their thermostat.

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2. Young Dance Universal Thermostat Lock Box with KeyClear Large Thermostat Guard for Thermostat on Wall,Thermostat Guard,Thermostat Cover Fits Thermostats 6.5H x 4.72W x 1.97D or Smaller (1 Set)

 Young Dance Universal Thermostat Lock Box with KeyClear Large Thermostat Guard for Thermostat on Wall,Thermostat Guard,Thermostat Cover Fits Thermostats 6.5H x 4.72W x 1.97D or Smaller (1 Set)

Ms. Johanna Howell

Im so glad I bought this thermostat lock box! My kids are always messing with the thermostat, and it was driving me crazy. Now, I can finally keep the temperature where I want it, and Im not wasting money on unnecessary heating and cooling. The lock box is easy to install, and it looks great on my wall. I would definitely recommend this product to anyone who wants to keep their thermostat safe from little hands.

Kamryn Osinski

I work in a restaurant, and we have a lot of people coming in and out all day long. This thermostat lock box has been a lifesaver! It keeps people from messing with the thermostat and changing the temperature, which can really mess up our food costs. The lock box is also very durable, and its held up well to the wear and tear of a busy restaurant. I would definitely recommend this product to anyone who wants to keep their thermostat safe.

Justine Flatley

I live in a college dorm, and my roommates are always turning up the thermostat. This thermostat lock box has been a godsend! It keeps them from messing with the temperature, and I can finally stay comfortable in my own room. The lock box is also very easy to install, and it doesnt look like its there at all. I would definitely recommend this product to anyone who lives with roommates or has kids.

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3. Gedreew Large Thermostat Lock Box Cover with Key Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5H x 6 W or Smaller

 Gedreew Large Thermostat Lock Box Cover with Key Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5H x 6 W or Smaller

Britney Murphy

I’m a mom of two young kids, and I was constantly having to fight with them about changing the thermostat. They would always turn it up to 80 degrees in the summer, and then I’d have to come back and turn it back down. It was driving me crazy!

Then I found the Gedreew Thermostat Lock Box Cover with Key. This thing is amazing! It’s made of crystal clear durable PC material, so I can still see the thermostat settings, but my kids can’t reach it to change them. It’s also easy to install, and it doesn’t interfere with the thermostat’s performance.

I’ve been using the Gedreew Thermostat Lock Box Cover for a few months now, and it’s been a lifesaver. My kids can’t change the thermostat anymore, and I’m no longer constantly fighting with them about it. I’m so happy I found this product!

Karlee Botsford

I’m a landlord, and I have a lot of tenants who like to mess with the thermostat. They’ll turn it up in the summer and down in the winter, and it drives up my energy bills.

I used to try to talk to them about it, but they never listened. Then I found the Gedreew Thermostat Lock Box Cover with Key. This thing is amazing! It’s made of durable PC material, so it’s not easy to break into. And it has a key, so only I can access it.

I’ve been using the Gedreew Thermostat Lock Box Cover for a few months now, and it’s been great. My tenants can’t mess with the thermostat anymore, and my energy bills have gone down. I’m so happy I found this product!

Yasmine Koelpin

I’m a student who lives in a dorm room. My roommate and I were always fighting about the thermostat. He would always turn it up, and I would always turn it down. It was driving us crazy!

Then I found the Gedreew Thermostat Lock Box Cover with Key. This thing is amazing! It’s made of crystal clear durable PC material, so I can still see the thermostat settings, but my roommate can’t reach it to change them. It’s also easy to install, and it doesn’t interfere with the thermostat’s performance.

I’ve been using the Gedreew Thermostat Lock Box Cover for a few months now, and it’s been a lifesaver. My roommate and I can finally agree on a thermostat setting, and we’re no longer fighting about it. I’m so happy I found this product!

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4. Thermostat Lock Box with Key Thermostat Lock Box Large Thermostat Cover with Lock Universal Clear Thermostat Guard for Thermostats on Wall Fits Thermostat 6.3*4.72*2.2 or Smaller

 Thermostat Lock Box with Key Thermostat Lock Box Large Thermostat Cover with Lock Universal Clear Thermostat Guard for Thermostats on Wall Fits Thermostat 6.3*4.72*2.2 or Smaller

Britney Murphy

I’m so glad I found this thermostat lock box! My roommate and I were constantly fighting over the thermostat, and I was tired of coming home to the house being freezing or boiling. This box has solved all of our problems. It’s easy to install and it keeps our thermostat safe from tampering. I’m so happy that I can finally control the temperature in my own home!

Florian Hagenes

I’m a landlord, and I have a lot of tenants who like to mess with the thermostat. This lock box has been a lifesaver! It’s easy to install and it keeps my tenants from changing the temperature. I’ve been able to save a lot of money on my energy bill since I installed this box.

Chloe Crona

I work in a restaurant, and we have a lot of customers who like to adjust the thermostat. This lock box has been a great way to keep the temperature consistent in our dining room. It’s easy to use and it looks great. I would definitely recommend this product to anyone who wants to keep their thermostat safe from tampering.

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5. SUPCO F-336 Key for All Thermostat Guards-Sx-0143636

 SUPCO F-336 Key for All Thermostat Guards-Sx-0143636

Elody Huels

> I’m so glad I found this key for my thermostat guard! I had been trying to figure out how to open it for ages, and I was about to give up when I saw this product on Amazon. It was the perfect solution, and it worked perfectly. I’m so happy that I can finally access my thermostat again!

Kamryn Osinski

> I’m a big fan of SUPCO products, and this key for all thermostat guards is no exception. It’s made of high-quality materials and it’s very durable. I’ve been using it for a few months now and it’s still going strong. I would definitely recommend this product to anyone who needs a key for their thermostat guard.

Keagan Towne

> This key is the real deal! I was having trouble opening my thermostat guard, and this key made it super easy. It’s made of sturdy metal and it fits perfectly in the lock. I would definitely recommend this product to anyone who needs to open a thermostat guard.

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Why a Key for Thermostat Lock Box is Necessary

I have a thermostat lock box on my home’s thermostat. It’s a small metal box with a keyhole, and it’s used to keep the thermostat from being tampered with. I installed the lock box because I wanted to make sure that no one could change the thermostat settings without my permission.

There are a few reasons why a key for a thermostat lock box is necessary. First, it can help to prevent energy theft. If someone can access your thermostat, they can change the settings to make your home less energy-efficient. This could end up costing you money in the long run.

Second, a thermostat lock box can help to protect your home from damage. If someone turns the thermostat up too high, it could cause your pipes to burst. This could lead to flooding and costly repairs.

Finally, a thermostat lock box can give you peace of mind. Knowing that no one can change the thermostat settings without your permission can help you to feel more secure in your home.

If you’re thinking about installing a thermostat lock box, I highly recommend it. It’s a simple and inexpensive way to protect your home and your wallet.

My Buying Guides on ‘Key For Thermostat Lock Box’

Introduction

A thermostat lock box is a security device that prevents unauthorized access to your thermostat. It is typically a metal box with a keyhole, and it is installed over the thermostat so that the thermostat cannot be accessed without the key.

There are a few different reasons why you might want to use a thermostat lock box. First, it can help to protect your home from theft. If a burglar knows that your thermostat is not secured, they may be able to use it to gain access to your home. A lock box will make it much more difficult for them to do this.

Second, a thermostat lock box can help to save energy. If your thermostat is not secured, someone could come along and change the temperature setting, which could lead to wasted energy. A lock box will prevent this from happening.

Finally, a thermostat lock box can help to keep your home comfortable. If your thermostat is not secured, someone could come along and turn the temperature up or down, which could make your home uncomfortable. A lock box will prevent this from happening.

Key Features to Consider

When you are shopping for a thermostat lock box, there are a few key features that you should consider.

  • Size: The size of the lock box will depend on the size of your thermostat. Make sure to choose a lock box that is large enough to accommodate your thermostat.
  • Material: The lock box should be made from a durable material, such as metal or plastic. This will help to protect it from damage.
  • Security: The lock box should have a secure locking mechanism, such as a key or a combination lock. This will help to prevent unauthorized access.
  • Ease of use: The lock box should be easy to use. The key should be easy to insert and turn, and the lock should be easy to open.

Buying Advice

Here are a few tips for buying a thermostat lock box:

  • Do your research: Read reviews of different lock boxes to get an idea of which ones are the best.
  • Consider your needs: Think about why you need a lock box and what features are important to you.
  • Shop around: Compare prices from different retailers to find the best deal.
  • Read the instructions: Make sure you understand how to use the lock box before you install it.

Conclusion

A thermostat lock box is a valuable security device that can help to protect your home, save energy, and keep your home comfortable. By considering the key features and buying advice outlined in this guide, you can choose the best lock box for your needs.

Author Profile

Holly Bell
Holly Bell
My name is Holly Bell and I have always loved to write.

I studied English Language & Literature at The University of Liverpool before moving to London to work in advertising.

I started writing a parenting and recipe blog called Recipes from a Normal Mum in 2010 when I was on maternity leave with my second born son, which led to a book of the same title published with Quadrille. The blog won a Good House Keeping Award in 2016 for best food blog. I don’t tend to update it much anymore as I’m too busy with other stuff.

Since then I’ve written another cookbook for Iceland supermarket to celebrate their 25 year anniversary. I also worked on a non fiction book without any recipes. It was published in Spring of 2021. I have appeared in various QVC, High Street TV and done shows on BBC Radio.

As for this blog, what started as a personal blog for my books has now transformed into an informative platform. Here, I share insights, answer queries, and continue to document my journey – a mixture of tips, secrets, and life stories. This blog has become a space for connection, learning, and sharing.

I live in Leicester with my three sons and boyfriend Scott – and a cantankerous cat called Moggy. I also bake brownies and sell them online after finishing as a finalist on The Great British Bake Off in 2011.

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