Burner  

 designation  

 

0.5 

16 

30

 

 

6843-3-25 Oil

  10 

 20 

 25 

25 

20 

15 

15

 

 

Gas

 150 200 

250 

75 

50 

50 

40

 

6843-4-25 Oil

  25 

 50 

 50 

30 

20 

20 

 

 

Gas

 150 200 

250 

75 

50 

50 

40

Flame length "on ratio" for both burners varies from within the tile at low rates to 10" long by 12" 
diameter at higher air rates.

Sheet 6843-1

Page 2

 

 

 

       Sensitrol

 

 

   

 

 Burner    

 

weight 

Sensitrol

 oil valve 

recommended

  

designation  

A  

B  

lb  

1813 or 1813M 

pilot tip 

 

6833-3-25

 1½   

230 

-02A 

4021-12 

 

 

6833-4-25

 2 

1¼   

230 

-02A 

4021-12

†  Pipe nipple not furnished by North American.

 This dimension assumes a 

3⁄8

" close nipple between burner and Sensitrol Oil Valve.

RECOMMENDED MAXIMUM XSAir RATES--Percent

(Gas fi res include 100 scfh [2 psi] atomizing air--required for cooling)

air pressure, osi

"C" Models Flanged

¾

  

¾

  

 dia.

4 holes

DIMENSIONS in inches

3⁄8

 NPT

oil inlet

3⁄8

 NPT

atomizing air inlet

10

¼  

B

-NPT

gas

inlet

Flangeless

1

3⁄8

(see note)

(see note)

NOTE:

 Sensitrol oil valve not included in burner assembly. Order separately per table above.

5⁄16

A

-NPT

main air

connection

5

7⁄16

5

1⁄8

8

1⁄16

11

15⁄16

 

15

sq.

9

3⁄8

9

7⁄16

18 sq.

2

Cop

yr

igh

t © 2020 - F

iv

es - All r

igh

ts r

eser

ved. Shee

t 6843-1 05/13

DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSITON, INC.

IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL

.

Fives North American Combustion, Inc. 

4455 East 71st Street - Cleveland, OH 44105 - USA

www.fi vesgroup.com

CONTACT

fna.sales@fi vesgroup.com
T +1 800 626 3477 - F +1 216 373 4237

Catalog Combustion 2021 - Page 0828

Fives Group
FIVES GROUP
FIVES GROUP-FIVES GROUP-0828-0832

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Fives Group Part Numbers on this Catalog Page
Line Part Number Manufacturer Request Quote
1 6843-3-25 Fives Group Request Quote
2 6843-4-25 Fives Group Request Quote
3 6833-3-25 Fives Group Request Quote
4 6833-4-25 Fives Group Request Quote