QMark
Washdown/Explosion Proof Heaters
QMark's website
Washdown
Corrosion Resistant Unit Heater (JUW)
Designed for comfort
heating or freeze
protection in non-
hazardous dusty/dirty
environments including
waste water treatment
plants, coal handling
areas, food processing
plants, foundries, steel
mills, cement plants, car
washes, swimming pool
areas, canneries and
dairies
Reliable, rugged, self-
contained, UL and CSA
listed, corrosion
resistant unit heater
Offers both corrosion
protection in harsh
environments and the
ability to be hosed down
for cleaning
An ideal heat source for
freeze protection or
comfort heat in non-
hazardous, dirty and corrosive areas such as waste water treatment
plants, ships, factories and construction sites
All components are designed to be moisture and corrosion resistant
A sturdy type 304 stainless steel case surrounds industrial grade
316 stainless steel
finned tubular elements
Totally enclosed motor is a permanently lubricated, ball bearing
type which is epoxy
painted for moisture and corrosion resistance
Junction box houses the built-in controls and element terminals
and is rated
NEMA 4X
Dependable air flow comes from a spark resistant, epoxy coated aluminum
fan
Power contactor, motor contactor, epoxy sealed automatic over-temperature
cutout, internal thermostat (55ºF - 105ºF), pilot light to indicate
when unit is
in operation mode, and selector switch (heater on/off, fan only)
are standard
Stainless steel universal type swivel mounting bracket supplied
with heater
Fan delay standard on all models 5Kw or larger![]()
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Available in 120, 208, 240, 277, 480 and 575
volts and 2, 3, 5, 7.5, 10, 12.5, 15, 19.5, 20, 25,
30, 35 and 39 watts
QMark has several products. Only selected products are featured here. For information on additional QMark products please check QMark's website or request information from ESA.
Ph: 206-574-0092 * Fax: 206-575-0674 * repesa@repesa.com

