The reversible-type vacuum boiler of fuel and smoke tube

easy and safe operation for anyone (no licensee needed) It is easy and safe to operate vacuum boiler for it was recognized for exempt from all sort of limitation such as installing, usage inspection, etc.. 2 Fuel and smoke tube anti-type (complete burn of pressurized burner) It maintains optimal heat efficiency by Fuel and smoke tube anti-type structure design and it maximize efficiency with complete burning by use of pressurized burner. 3 triple safety device, absolute safety The boiler doesn't have any danger of breakage or transformation because it is vacuum operating, and absolutely safe because it is designed with triple safety device. 4 use direct pipe, highly effective fuel cost Used maximum number of direct pipe for heat transmitter inside of boiler. (minimize circular resistance, prevent scale, and maintain optimal heat transmitting efficiency) 5 semi-permanent life spans(stainless pipe surface) Vacuum boiler does not have movement of pipe water and its inner side is vacuum operated ,so there is no corrosion by dissolved oxygen or accumulation of scale. Guarantee semi-permanent life span, using stainless pipe surface 6 simple to clean and reduction of maintenance fee Fuel and smoke tube type, so it is easy to clean, and its heat transmitter coil consists of direct pipe, so its maintenance fee can be reduced. 7 combined use for (* fast boiling) heater , convenience of install and carrying out (* fast boiling) circuit and heat circuit are independently built in, so its installation is convenient according to necessary loading quantity. Boiler body is small sized so it is easy to install it at even narrow place