High thermal efficiency through the recovery of latent heat 
Realization of 95 %

Extremely high efficiency through the proportional control combustion format
Through 5:1 Turndown and  the format, no need to stop the burner

NOx emissions
60ppm or lower, converted at O2 = 0%

Space conserving design & delivery devices split

Subsequent equipping of the latent heat recovery device

Equipped with a new, highly functional micro-computer
Backlit screen, multiple remote controls and etc.