DZL shop-assembled hot water boiler is single drum vertical water tube shop-assembled boiler.The boiler has new design, compact structure and safely operated The advantage of DZL shop-assembled hot water boiler: highly effective which can reach *7.*2%. mechanization, eay to operation. reasonable water cycle, simple structure, floor area saving, low copper consumption. emission concentration comply with national regulated standard. full boiler auxiliaries, easy to install, save the investment. can use many coal ranks, temperature increase quickly.