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Preway
Space Heater

Model # DUN37A-4018 Official Preway gas burning unvented radiant heater

Here are the diagrams and repair parts for Official Preway DUN37A-4018 gas burning unvented radiant heater, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 10 of 39 parts  |
Emblem K14502
#8

Replacement parts diagram

Emblem

Part #K14502

The manufacturer no longer makes this part, and there's no substitute part

Bottom T16889
#16

Replacement parts diagram

Bottom

Part #T16889

The manufacturer no longer makes this part, and there's no substitute part

Liquid Propane Orifice K12566
#19A

Replacement parts diagram

Liquid propane orifice

Part #K12566

The manufacturer no longer makes this part, and there's no substitute part

Owner's Manual F2457

#NI

All parts diagram

Owner's manual

Part #F2457

The manufacturer no longer makes this part, and there's no substitute part

Natural Orifice K14517
#19

Replacement parts diagram

Natural orifice

Part #K14517

The manufacturer no longer makes this part, and there's no substitute part

Grille Y12570-1
#13

Replacement parts diagram

Grille

Part #Y12570-1

The manufacturer no longer makes this part, and there's no substitute part

Knob K13174
#9

Replacement parts diagram

Knob

Part #K13174

The manufacturer no longer makes this part, and there's no substitute part

Knob K13779
#5

Replacement parts diagram

Knob

Part #K13779

The manufacturer no longer makes this part, and there's no substitute part

Manifold Y12571
#18

Replacement parts diagram

Manifold

Part #Y12571

The manufacturer no longer makes this part, and there's no substitute part

Case Y12574
#26

Replacement parts diagram

Case

Part #Y12574

The manufacturer no longer makes this part, and there's no substitute part

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