... temp. 55 degree only one time cycle7.Saving cost as high as 60%-80% compared with oil boiler,gas boiler.Large ... of inflammable,explosive,electric shock,gas poisoning6.Saving cost as high as 60%-80% compared with oil boiler,gas boilerLarge applicationIt ... ,hotel,hospital,military,villa,village etc. MODELYYJ-AS-3.5YYJ-AS-5YYJ-AS-6.5YYJ-AS-9Reted heating output3.5KW5KW6.5KW9KWRated output water quantity85L ...