Portable Washers and Washing Machines

(RPM) Rotations Per Minute:

Higher spin speeds remove more water, leading to faster drying. If a heated clothes-drier is used after the wash and spin, energy use is reduced if more water has been removed from clothes. 

Internal water heater

An internal water heater allows the washer to do a profile wash. The washer fills with cold water and then heats it as the wash tumbles. This gradual raising of the temperature allows protein stains to be removed at a low temperature, avoiding setting by higher heat. Then as the water continues to warm, detergent enzymes work at their optimal temperature and color safe bleach becomes more effective. At high tempertures, odors and oily stains are most completely removed.