Last, but certainly not least, is temperature – probably the single most important consideration. If the steam temperature at the point at which the steam hits the bed bugs doesn’t exceed 120 degrees, the steam will not kill the bed bugs. There are many steamers on the market, but the majority of them cannot produce continuous steam in excess of 120 degrees. Many steamers will “burst” hot steam, but not produce it consistently. The risk here is that you will miss areas between bursts. Missing areas results in a bed bug infestation that remains.