Thanks marty that is helpful In NY the 2400 is considered a commercial unit I still would be able to purchase it because I live on a farm. I would rather get the 1400 because of the price and I could put it closer to my house because of the difference in set back req. between comm. and res. units. My biggest concern is the burn time its hard to figure the actual difference in burn times and if it warrants going up to the bigger unit
sorry about the list below got a little skewed
List of Certified Outdoor Wood Boiler Models
Manufacturer Model Certified Emission Rate(lb/mmBtu,heat output) Classification Minimum Setback(feet) Fuel
Central Boiler E-Classic 1400 0.27 Residential 100 Cord wood
Central Boiler E-Classic 2400 0.12 Commercial 200 Cord wood
Central Boiler E-Classic 3200 0.08 Commercial 200 Cord wood
Central Boiler Maxim 250 0.066 Residential 100 Wood pellets
Heatmor 200 SSR II 0.315 Residential 100 Cord wood
Piney Manufacturing Optimizer 250 0.23 Residential 100 Cord wood
Pro-Fab Industries Empyre Pro Series 200 0.23 Residential 100 Cord wood
Woodmaster 30KW 0.04 Residential 100 Cord wood
Woodmaster 60KW 0.04 Residential 100 Cord wood
Woodmaster 60KW 0.16 Residential 100 Wood pellets