There is a problem with these as they go open after a very short time.
Maybe the water drops below the heater a little and they burn out.
You might want to check yours if it's older than two years.
Time for an oil immersion heater.
	
		
			
		
		
	
								Maybe the water drops below the heater a little and they burn out.
You might want to check yours if it's older than two years.
Time for an oil immersion heater.
 
				 
				
		 
 
		 
 
		 
 
		