Those that are left will start laying eggs, and the population will increase back to what it was before. Since heat kills bugs in every part of the home, along with the eggs, it is more effective than a steam cleaner. The Cost. A portable steam cleaner can be purchased for around $60; this is the compact version that can be carried by hand.
To Heather - heating your clothes, towels, linens and pet bedding in a commercial dryer at high for 30 - 40min. will kill all bed bugs and eggs. They generally lay eggs in a hiding location (like bedding) not on animals or humans. DO NOT SQUISH adult bed bus, in the blood are the eggs which are still viable. They are resilient insects.
As you may have deduced, heat will kill bed bugs and their eggs. While you are most likely focusing on the live bed bugs, you need to be diligent and thorough about destroying the eggs as well. One way to get to all the cracks and crevices in your furniture and in your home is to get a dry steamer - a heavy-duty one that can heat up high enough to kill the eggs.
Whole room heat treatments involve a Pest Management Professional (PMP) bringing in specially designed equipment to raise the temperature in your home to kill the bed bugs. Bed bugs and eggs die within 90 minutes at 118°F (48°C) or immediately at 122°F (50°C).
Kill the Bed Bugs. Every few days after you complete your initial cleanup and control processes, carefully look for any evidence of bed bugs. If you see bed bugs, that means that either the initial cleanup missed some individuals or that eggs have hatched (finding and removing or killing all eggs can be very difficult) and retreatment may be needed.