Buy Offer - Steam Boiler

i need steam boiler for heat to concrete ,my chamber size is 6' hight x 6\' width x 140' length .i want to steam heat concrete 80 degree tempracher for 4 hr. at starting tempracher raished 30 degree to 80 degree with in 30 minite. i do not want preserr in chamber and total concrete in chamber is 36000 k.g +trolly weight is 18000 k.g = 54000 k.g total weight in chamber at a time . this is for your information,
so , give your quatation as soon as possible.