Neotherm Commercial Hydronic Boilers





 Model
Number  		 Input
BTU/h  		 Input 
kW  		 Output 
BTU/h  		 Output 
kW		  AFUE 
%		  Thermal
 Efficiency%  		 Combustion 
 Efficiency%  		 Water Connections 
NPT Size (in.) 		 Gas Connections 
NPT Size (in.)		  Width  
(in.)		 Length 
(in.) 		Height 
(in.) 		Air Inlet
(in.) 		Vent
(in.) 
 NTH285  285,000  83.5  269,040   78.8   95.0   N/A   94.4   3/4 NPT   1-1/4 NPT 19  26-3/4 38-1/4 4-1/2   4-1/2
 NTH399  399,000  116.9  382,242   112.0   N/A   94.0   95.6   3/4 NPT   1-1/4 NPT 19  31-1/2 38-1/4 4-1/2   4-1/2
 NTH500  500,000  146.5  472,500   138.4   N/A   95.0   95.0   1 NPT   1-1/2 NPT 19  37-3/4 38-1/4 4-1/2   4-1/2
 NTH600  600,000  175.8  570,000   167.0   N/A   95.0   N/A   1 NPT   2 NPT 25  37-3/4   36 4-1/2   6-1/2
 NTH750  750,000  219.8  713,000    208.9   N/A   95.0   N/A   1-1/2 NPT   2 NPT 25  55-1/4   36 4-1/2   6-1/2
 NTH850  850,000  249.1  808,000    236.7   N/A   95.0   N/A   1-1/2 NPT   2 NPT 25  55-1/4   36 4-1/2   6-1/2




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