4/13/2011

Honeywell HWM330 Quick Steam Warm Moisture Humidifier Review

Honeywell HWM330 Quick Steam Warm Moisture Humidifier
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Clearly a lot of people have had problems with this unit. When mine failed after about 6 weeks of use, I dug into it to see what was up. It ends up that the overheat protection on this thing isn't real great. The first layer of overheat protection is provided by a sensor integrated into the heating element. I can't tell exactly, but it seems from the element manufacturer's literature (....) that the device sends a cut off signal between 250 and 300 C, per the chart on page 4. However, Honeywell used an NEC-Schott SF214E thermal cutoff as a backup device. This fails permanently if it's heated to 214 C. In other words, the backup, "sacrifice the machine and not the house it's in" device fails before the normal operation re-settable thermal cutoff. As a result, the device will probably stop working the first time it runs dry. Don't buy it.

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Honeywell warm moisture humidifier quick steam, instantly provides bacteria free vapor

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