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Furnace | Utility

NEW! Now Available with Lock

Standard colors: bright white and ivory
Install in 5 minutes!

Furnace and Water Heater Doors; Utility and Access

Now Available with Lock and Pivot Hinges

Innovative Door Designs

SlimDoor® has engineered single-panel full-louvered doors in 5 styles, using galvanneal steel or cold-rolled steel, for your furnace, water heater, or utility access needs.

Safety

These doors meet or exceed testing codes and ventilation standards.

Installation

They are easy to install, with no frame required. They are available with pivot hinges, allowing them to fit into a less-than-perfect space, or two hinges with six #8 wood screws. Optional locks are now available to secure your furnace doors.

Durability

SlimDoor® are carefully manufactured to provide years of maintenance-free use. The electrostatically-applied enamel is standard, and galvannealed steel is available for areas of high humidity.

Finishes

SlimFold doors are available with a top-of-the-line factory prefinish.  Save time and money with a strong long lasting prefinished frame.  Choose from one of Dunbarton’s many standard colors or select a custom color of your choice. Mirrored Stiles and Rails are available in Bright White, Arctic Silver, Satin Silver, or Satin Chrome depending on your mirror choice.

SlimFold is finished in a state-of-the-art paint conveyor line with electrostatically applied, baked-on enamel.  This ensures complete coverage of the frame with a “best in the industry” paint finish.  No exposed edges of the steel or hardware cutouts compared to our competition.  Dunbarton also offers an option of A40 galvannealed steel that combined with our factory paint system gives maximum rust protection.

The Dunbarton factory-applied paint finish meets or exceeds the 500-hour salt spray test per ASTM–B117-97.  This is four times the requirement of hollow metal frames per SDI (Steel Door Institute) of 125 hours.

Dunbarton Painted finishes also passed a 700-hour humidity test per ASTM–D1735-87.

Furnace Door Styles

Furnace Doors

250

325

325 Classic

NEW! 400 Classic

500

Specifications:

• MATERIAL:
Exclusive 1” thick steel door, A40 Galvanneal or cold-rolled in a smooth or rough texture
• REINFORCEMENTS:
Reinforced with three 3” wide, 24 gauge cold-rolled steel stiffeners, welded to back and flanges of the panel (12 welds per stiffener)
• HARDWARE:
Pivot hinges or two hinges with six #8 wood screws, one-panel doorknob with a screw. Optional lock.
• WIDTH:
20”, 22”, or 24” widths only
• HEIGHT:
78-1/2” height only
• FINISH STANDARDS:
Furnace door panels have been evaluated a Grade 7 or better in accordance with ASTM D610 “Standard Method of Evaluating Degree of Rusting on Painted Steel Surfaces.” Humidity testing per ASTM D2247 is 200 hours.

Furnace Door Water Heater

Furnace | Water Heater Air Flow

Size
Door
Width
Door
Height
Finished
Opening Size*
Ship
Weight
Free Air Space
Model #250
Free Air Space
Model #325
Free Air Space
Model #400
Free Air Space
Model #500
20″
20″
78-1/2″
20-1/2″ x 80-1/2″
58 lbs/CTN
238 sq. in.
343 sq. in.
521 sq. in.
22″
22″
78-1/2″
22-1/2″ x 80-1/2″
64 lbs/CTN
257 sq. in.
347 sq. in.
316 sq. in.
525 sq. in.
24″
24″
78-1/2″
24-1/2″ x 80-1/2″
70 lbs/CTN
261 sq. in.
351 sq. in.
316 sq. in.
529 sq. in.

Colors

Colors may vary by screen! Color chips are available upon request. Click here to order.

Bypass | Swing Door Colors

Bright White

Ivory

Texture

Smooth

Leather "No Fingerprint"

Note: Leather “No Fingerprint” Finish Optional on all steel bifold doors.

Primer*

Prime Gray

**Prime Gray not intended for top coat. Primer not available for mirrors.

DUNBARTON WILL TAKE ON OPENING CHALLENGES

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