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5.If you are using one extension cord for more than one appliance, add the nameplate amperes and use the sum to determine the required minimum cord size. (See Table A.)

6.If you are using an extension cord outdoors, make sure it is marked with the suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.

7.Make sure your extension cord is properly wired and in good electrical condition. Always replace a damaged extension cord or have it repaired by a qualified electrician before using it.

8.Protect your extension cords from sharp objects, excessive heat, and damp or wet areas.

Table A

RECOMMENDED MINIMUM WIRE GAUGE FOR

EXTENSION CORDS* (120/240 VOLT)

NAMEPLATE

AMPERES

(at full load)

0 – 2.0

2.1– 3.4

3.5– 5.0

5.1– 7.0

7.1– 12.0

12.1– 16.0

16.1– 20.0

TABLE A

EXTENSION CORD LENGTH

25’	50’	75’	100’	150’
18	18	18	18	16
18	18	18	16	14
18	18	16	14	12
18	16	14	12	12
18	14	12	10	-
14	12	10	-	-
12	10	-	-	-

*Based on limiting the line voltage drop to five volts at

150% of the rated amperes.

Table B

The Fireplace Heater comes fully assembled from the factory, and is ready for operation. When unpacking, check to make sure that all the parts are included. Refer to the Assembly Drawing and Parts List at the end of this manual. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon as possible.

SKU 91797

For technical questions, please call 1-800-444-3353

Page 6

91797 specifications

Harbor Freight Tools 91797 is a versatile and powerful tool that has garnered attention among both professional tradespeople and DIY enthusiasts. This instrument is primarily designed for users seeking robust performance in a compact package, making it perfect for a range of applications from automotive repair to home improvement projects.

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