European model  of LED gas wall-mounted boiler

1.timer and heating 2.Digital color display3.Key operation4.with time control program5.Free to set6.With frost protection inside7.Have warm radiator transfer switch8.Room temperature controller can be connected9.Balanced force10Effective discharge of the exhaust outdoors11.Use of safer12.Natural exhaust of flue13.No sound of fan operation14.Particularly quiet

wall-mounted gas boiler ZQ4