Will Hot Water Kill Bed Bugs? What Heat Treatment Experts Say

August 11, 2025

If you are wondering if hot water can kill bed bugs, the answer is yes. Hot water can kill bed bugs, but there are important details to consider before using it. Just pouring hot water on bedbugs won’t resolve your problem completely. However, if used correctly, it can be a helpful part of a heat treatment plan. 

Getting to Know Bed Bugs and Hot Water 

Bed bugs are tiny, resilient pests that love to hide in the crevices of your mattress, furniture, and even your clothing. They survive by feeding on human blood, and people widely recognize that getting rid of them is difficult. Heat is one of the few methods proven to kill these stubborn insects. 

Using hot water to control bed bugs means washing infested bedding or clothes. The water should be hot enough to kill the bugs and their eggs. Experts say that water temperature should reach at least 120°F (49°C). It must stay at that level for a good amount of time to work well. 

Why Hot Water Matters in Bed Bug Control 

  • High temperatures can kill bed bugs and their eggs quickly. 
  • Hot water is accessible and chemical-free. 
  • Washing and drying infested items helps contain the spread. 
  • It’s a beneficial additional measure within a broader strategy for using heat to eliminate bed bugs. 
  • Correct heat treatment can avert chemical resistance problems. 

How to Use Hot Water to Tackle Bed Bugs 

Step 1: Collect all potentially infested bedding, clothes, and fabrics. Check furniture covers, curtains, and stuffed toys. 

Step 2: Wash items in hot water set to at least 120°F (49°C). Use your washing machine’s hottest setting. 

Step 3: Dry the washed items on the highest dryer setting for at least 30 minutes. This will help eliminate any remaining bugs. 

Step 4: For non-washable items, consider professional heat treatment services or use a steam cleaner carefully on surfaces. 

Step 5: Keep checking and repeat the washing and drying process as needed until there are no signs of bed bugs left. 

Curious Minds Want to Know: Bed Bug Heat Treatment FAQs 

How hot does water need to be to kill bed bugs? 

Water must reach at least 120°F (49°C). It should stay in contact with the bugs long enough to kill them, usually during a full wash cycle. 

Would it be advisable to use boiling water on furniture or mattresses? 

Boiling water can damage fabrics and is unsafe to pour directly on furniture. Using washing and drying or professional heat treatments for those items is better. 

Does hot water alone effectively eliminate bed bugs? 

Hot water is effective for fabrics but won’t eliminate bugs hiding in furniture or cracks. Combine it with other heat treatment methods or pest control solutions. 

What’s the difference between washing and professional heat treatment? 

Washing uses hot water to clean clothes and bedding. In contrast, professional heat treatment warms entire rooms or homes to a deadly temperature for bed bugs. 

Can I steam clean to kill bedbugs? 

Yes, steam cleaning is effective on surfaces if the steam temperature is high enough and applied properly. 

Wrapping It Up: Hot Water and Bed Bug Control 

Hot water is a valuable tool in the fight against bed bugs, especially for laundering infested fabrics. However, it’s not a magic fix for an entire infestation. Combining hot water washing with drying and professional heat treatments offers the best chance of winning the battle. 

If you’ve spotted bed bugs or signs of their presence, don’t wait for them to settle in. Call 1st Choice Pest Solutions today, the trusted team Wisconsin families rely on to stop bed bugs fast. Book your professional heat treatment now and protect your home for good. 

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