328 Bulletin 277, 



the burner should be examined for stoppage. It sometimes happens 

 that Httle particles of sediment in the gasohne clog the opening (0) 

 at the needle end of the control valve. (Fig. 104.) This can be remedied 

 by closing the control valve and forcing the point of the needle through 

 the opening in the valve seat. This will clear away any obstruction 

 that might be there. It may be difficult to get a sufficiently 

 large blaze because the opening above referred to is too small. This 

 may be remedied by opening the control valve so that the point of the 

 needle will be back out of the way and then drawing a file slightly at 

 right angles across the hole, thus enlarging it. This should be tried 

 only as a last resort. 



The burner used is the Dangler* Furnace and Laboratory Lamp 

 Burner, No, 154. This burner has been chosen for use in the gasoline- 

 heated colony brooder-house as the result of a long test. It has been 

 found to be better than the ten or twelve other types of burners used 

 because it gives a cone-shaped blaze that is directed up into the radiator 

 where it is needed instead of being sent out in jets at right angles to 

 the burner. It gives more complete combustion than the cap type 

 of burner and is capable of a wider range of temperature, that is, it 

 can be turned very low for use in mild weather; and it will give a flame 

 sufficiently large to maintain the proper temperature under the hover 

 when it is 10 degrees to 15 degrees below zero outside. Burners with 

 more than one control valve are to be avoided. Among the burners 

 tested there were a number that had two or three wheel valves and 

 in addition to these a needle control valve. This type of burner is 

 undesirable because it is too complicated for the busy poultryman, is 

 likely to get clogged, and on trial does not prove to be so satisfactory 

 as the burner with only one needle control valve. 



When a' cold wind is blowing against the front there may be some 

 difficulty in keeping up the temperature. The wind entering through 

 the windows and door passes out through the heater and carries some 

 of the heat with it. If the prevailing winds are from the south, it is 

 well to face the house to the east, thereby avoiding this trouble. When 

 the wind is blowing against the front it is desirable to close up the front 

 openings as tightly as possible and partly open the rear window. This 

 will take care of the ventilation, as well as give the air a chance to 

 escape more easily than through the heater box. Also drop the venl 

 pipe to a horizontal position or lower so as to retain the heat longer 

 within the radiator by lessening the draught. 



♦The Dangler Stove Co., Div., Cleveland, Ohio. 



