QMark

QMark opened its doors in 1990 and has become a leading manufacturer of residential and commercial heaters and ventilation systems. We serve the residential, commercial, and industrial markets with a product portfolio that includes baseboard heaters, wall heaters, unit heaters, infrared heaters, convectors, thermostats, and much more.

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  • Heating and Ventilation
Discontinued
10KW @ 240V (7.5KW @ 208V), 1-3Ø Horizontal/Downflow Unit Heater
Qmark
240V 10KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH102
UPC: 685360047362
Item #: 64126
In Stock -
$1207.14 each
Availability
Location Available Qty
Discontinued
240V 40KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
240V 40KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH402
UPC: 685360047607
Item #: 609307
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 5KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0541
UPC: 685360047256
Item #: 130094
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
3KW @ 277V, 1Ø Horizontal/Downflow Unit Heater
Qmark
277V 3KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0371
UPC: 685360047201
Item #: 4512
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
240V 20KW LINE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
240V 20KW LINE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH202
UPC: 685360047461
Item #: 120955
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
3KW @ 240V (2.2KW @ 208V), 1Ø Horizontal/Downflow Unit Heater
Qmark
240V 3KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0321
UPC: 685360047164
Item #: 179775
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
20KW @ 208V, 3Ø Horizontal/Downflow Unit Heater
Qmark
208V 20KW LINE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH208
UPC: 685360047492
Item #: 149884
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
3KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 3KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0341
UPC: 685360047188
Item #: 171073
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
3KW @ 208V, 1Ø Horizontal/Downflow Unit Heater
Qmark
208V 3KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0381
UPC: 685360047218
Item #: 37984
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
30KW @ 240V (22.5KW @ 208V), 3Ø Horizontal/Downflow Unit Heater
Qmark
240V 30KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH302
UPC: 685360047539
Item #: 67037
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
30KW 480V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
Qmark
30KW 480V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH3048
UPC: 685360041940
Item #: 97235
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
50KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 50KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH504
UPC: 685360047645
Item #: 249468
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
7.5KW @ 208V, 1-3Ø Horizontal/Downflow Unit Heater
Qmark
208V 7KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH078
UPC: 685360047355
Item #: 99004
In Stock -
$1158.14 each
Availability
Location Available Qty
Discontinued
7.5KW @ 240V, 1-3Ø Industrial Horizontal/Downflow Unit Heater
Qmark
7.5KW 240V IND. (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH724
UPC: 685360042091
Item #: 222844
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
25KW @ 240V (18.7KW @ 208V), 3Ø Horizontal/Downflow Unit Heater
Qmark
240V 25KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH252
UPC: 685360047508
Item #: 192175
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
15KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 15KW LINE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH154
UPC: 685360047430
Item #: 170571
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
10KW 480V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
Qmark
10KW 480V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH1048
UPC: 685360041803
Item #: 206469
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5KW 480V IND. (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
Qmark
5KW 480V IND. (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH548
UPC: 685360042022
Item #: 64443
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
15KW @ 240V, 1-3Ø Industrial Horizontal/Downflow Unit Heater
Qmark
15KW 240V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH1524
UPC: 685360041841
Item #: 68534
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5KW @ 277V, 1Ø Horizontal/Downflow Unit Heater
Qmark
277V 5KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0571
UPC: 685360047270
Item #: 94858
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
7.5KW 480V IND. LINE 1 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
Qmark
7.5KW 480V IND. LINE 1 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH748
UPC: 685360042121
Item #: 23262
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
25KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
25KW 480V 3P LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH254
UPC: 685360047515
Item #: 44866
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
277V 10KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
277V 10KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH107
UPC: 685360047409
Item #: 205805
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
10.0KW 600V LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
10.0KW 600V LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH106
UPC: 685360047393
Item #: 855302
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
10KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 10KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH104
UPC: 685360047386
Item #: 104112
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
208V 30KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
208V 30KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH308
UPC: 685360047560
Item #: 138378
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
30KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
30KW 480V 3P LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH304
UPC: 685360047546
Item #: 61273
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
10KW @ 208V, 1-3Ø Horizontal/Downflow Unit Heater
Qmark
208V 10KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH108
UPC: 685360047416
Item #: 64500
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5KW @ 208V, 1-3Ø Horizontal/Downflow Unit Heater
Qmark
208V 5KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0581
UPC: 685360047287
Item #: 40206
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
15KW @ 240V (11.2KW @ 208V), 3Ø Horizontal/Downflow Unit Heater
Qmark
240V 15KW LINE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH152
UPC: 685360047423
Item #: 43035
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5,000/4,165/3,332/2,500W @ 240V (3,750/3,123/2,500/1,874W @ 208V)
Qmark
240V 5000W (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: MWUH5004
UPC: 685360047706
Item #: 106458
In Stock -
$598.73 each
Availability
Location Available Qty
Discontinued
10KW @ 240V, 1-3Ø Industrial Horizontal/Downflow Unit Heater
Qmark
10KW 240V IND. LINE 6 This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: IUH1024
UPC: 685360041766
Item #: 156766
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
208V 50KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
Qmark
208V 50KW LINE 6 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH508
UPC: 685360047669
Item #: 640200
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
5KW @ 240V (3.7KW @ 208V), 1-3Ø Horizontal/Downflow Unit Heater
Qmark
240V 5KW (LINE 3) This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH0521
UPC: 685360047225
Item #: 120228
In Stock -
$724.63 each
Availability
Location Available Qty
Discontinued
15KW @ 208V, 1-3Ø Horizontal/Downflow Unit Heater
Qmark
208V 15KW LNE 5 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH158
UPC: 685360047454
Item #: 140088
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
7.5KW @ 480V, 3Ø Horizontal/Downflow Unit Heater
Qmark
480V 7.5KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH074
UPC: 685360047324
Item #: 168988
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Discontinued
7.5KW @ 240V (5.6KW @ 208V), 1-3Ø Horizontal/Downflow Unit Heater
Qmark
MUH-07-2 240V 7KW LINE 4 This rugged unit heater works well in industrial settings. Install it in factories, warehouses, garages, stairwells, power stations or mechanical rooms. Its powerful output capacity even makes it suitable for heating your loading dock or other indoor/outdoor transition spaces.
MFR: Marley Engineered Products
MFR #: MUH072
UPC: 685360047300
Item #: 41765
In Stock -
$1117.70 each
Availability
Location Available Qty
Discontinued
208V 5000W UH (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
Qmark
208V 5000W UH (LINE 1) This heavy-duty heater provides a longterm comfort solution wherever you need to warm up garages, workshops, basements, even outdoor spaces. Aim heat anywhere with adjustable louvers and flexible mounting options for both horizontal and vertical applications.
MFR: Marley Engineered Products
MFR #: MWUH5008
UPC: 685360047713
Item #: 786488
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty