Heat Pump dehydrators work differently than conventional dryers. For both systems, the air is heated to the desired drying temperature and then circulated over the product to absorb moisture.
However, instead of exhausting this hot, moist air as typical conventional dryers would, heat pump dehydrators draw the air over the cold coil of a refrigeration system, where the moisture is condensed from the air and drained away.
The air is then drawn over the hot coil of the system to reheat it and sent back over the wet product.
This cycle repeats until the product has reached the desired moisture content. During this process, the energy used is only what is necessary to operate the compressor, blower, and circulating fans, resulting in up to 60% less energy than conventional dryers.