AlphaTherm Heated Wash click to enlarge
Designed for Do-It-Yourself easy installation.
Heated Wash On-Demand
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Alphatherm HeatedWash cross section
The Heated Wash AT-38OD operates in “On-Demand” mode.

The unit starts to operate when the ignition is on (engine running) and battery voltage level
is higher than 13.0 volts.  Once the unit is activated, the washer fluid inside its heating
chamber will be heated and kept within pre-determined temperature limits (140 – 150°F),
so there is always hot fluid inside the unit’s heating chamber which can be used by a driver
for cleaning the windshield.  

Each time the driver activates the factory installed washer system, heated washer fluid is
applied to the windshield for approximately the first 3 seconds of spray. Three seconds of
the spray delivers approx. 50-60 cc of fluid that is considered sufficient amount of fluid for
one spray. The next portion of heated washer fluid is available in 10-20 second(depending
on ambient conditions).

The HeatedWash unit uses full power of 50 Amps for 30 seconds to heat the washer fluid
up to pre-determined temperature limits (140 – 150°F), and minimal power to keep it
within these limits. The unit’s power consumption is less than 2 Amps per hour.  

Once the unit starts to operate (engine is running), it will heat the washer fluid in
approximately 30 seconds; driver operates the washer system manually to spray the
heated washer fluid onto the windshield. Recommended duration of spray is 3 seconds.
Driver can spray as many times as he wants. Best results are achieved  when time
intervals between sprays are approx. 20 seconds.
HeatedWash unit
Dimensions *:
Heigth  5.5 inches (137 mm)
Width 4 inches (100 mm)
Thickness 1.75 inches (43 mm)
Weight *:
1.01 lbs (460 g)
* Without prime, bracket and cables attached.
HeatedWash installation diagram
How AlphaTherm's Heated Wash compares to others
How AlphaTherm's Heated Wash compares to others.
As shown below, AlphaTherm offers a larger quantity of heated fluid which results in better cleaning
AlphaTherm Heated Wash is made in the USA
based on Automotive Industry Design & Process Standards  
Installation instruction
Click to download
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Order your
HeatedWash today.
Enjoy clear visibility all year around!