Fire Tube Hot water boilers are tanks or vessels that transfer thermal energy from a heat source to water that is then circulated to provide residential, commercial and industrial heating. Hot water boilers are an important part in hydroponics, the use of water as a heat-transfer medium in heating and cooling systems, because they heat the water that circulates through a series of pipes and into radiators, baseboards and other heat ex-changers.

1. ZHENGZHOU BOILER CO.,LTD
High and New Technology Development Zone, Zhengzhou,China
www.zghorizontalboiler.com ; www.zgsteamboiler.com
Email: industrialboilermerry@hotmail.com ;merryzzboiler@gmail.com
ZHENGZHOU BOILER CO.,LTD industrialboilermerry@hotmail.com
Fire tube Hot Water Boilers for sale
Fire Tube Hot water boilers are tanks or vessels that transfer thermal energy from a heat source
to water that is then circulated to provide residential, commercial and industrial heating. Hot water
boilers are an important part in hydroponics, the use of water as a heat-transfer medium in heating
and cooling systems, because they heat the water that circulates through a series of pipes and into
radiators, baseboards and other heat ex-changers.
Hot water boilers are usually made from stainless steel, aluminum, cast iron or steel and are built
to withstand high temperatures and pressure. A furnace along with heat ex-changers and tubes is
enclosed in a housing that provides a fireproof, well-ventilated, stable-air environment. Possible
fuels include coal, wood or natural gas, though hot water boilers that run on electricity are also
widely available. These appliances may be also be combi boilers, which do not have a hot water
storage tank but instead draw in water as it is needed. Depending on the application, commercial
systems may add various substances to the water including chemicals to inhibit corrosion, prevent
freezing, increase the boiling point of the water, improve leak detection and reduce bacteria and
mold growth. They are used for commercial and industrial heating and circulation, tank heating,
swimming pools, floor and baseboard residential heating and water source heat pumps.
Hot water boilers type:
There are two main ways boilers heat water: fire-tube or water-tube. Fire-tube boilers direct the
heat produced from burning fuel through heat exchanging tubes that are immersed in water. Heat
moves from high to low temperatures so the water around the tubes becomes hot. Water-tube
boilers are different in that there is water inside the tubes that circulates as the tubes are heated
from the outside. The hot water is then moved by one of three ways. Gravity flow heating systems
are the oldest, simplest and least efficient technique. Water is circulated due to the thermal
differences between hot and cold water; water expands as it is heated so it travels through the
pipes and displaces the cooler water. A pumped water system uses the same principles as gravity
flow but is aided by use of a pump that circulates the water faster to produce a more controllable
room temperature. Baseboard heating also relies on radiant heat, the heat that is released from hot
pipes in the system.

2. ZHENGZHOU BOILER CO.,LTD
High and New Technology Development Zone, Zhengzhou,China
www.zghorizontalboiler.com ; www.zgsteamboiler.com
Email: industrialboilermerry@hotmail.com ;merryzzboiler@gmail.com
ZHENGZHOU BOILER CO.,LTD industrialboilermerry@hotmail.com
Industrial Boiler Company Introduction:
Zhengzhou Boiler CO., Ltd is a leading industrial horizontal boiler manufacturer and
exporter in Henan Province, China, founded in 1945, is a joint-stock enterprise with A1,
A2, C3 pressure vessel design and manufacture license permits. We are specialized in
the producing of horizontal Gas fired boiler,horizontal oil fired boiler, horizontal Biomass
fired boiler,horizontal Coal fired boiler,horizontal Chain grate boiler,CFB boiler,Waste heat
recovery boiler,Industrial autoclave,AAC block plant. The industrial boiler and autoclaves
are developed with technical advantages, stable and reliable performance, exported to
Southeast Asia, Africa, Middle East and other countries.
As the company continues to grow, many honors have followed us. Now the company has
covered an area of 20,000 square meters, with more than 1500 employees and more than
1000 various types of manufacturing equipment, and ten large research bases.
The main products are:
1. WNS series gas & oil horizontal steam boiler 1-20 ton/hour, hot water boiler 0.7-14MW
2. SZL series chain grate boiler: 4 ~ 35 T/h steam boiler, 1.4 ~ 14 MW hot water boiler;
3. DZL series chain grate boiler: 2 ~ 35 T/H steam boiler, 2.8~ 17.5 MW hot water boiler;
4. CFB boiler(power plant boiler) is 10-280 ton
5. Biomass boiler: 2 ~ 25 T/H steam boiler, 2.8~ 17.5 MW hot water boiler;
6. AAC block plant : 50000-250000m3
we try our best to be number one, and always put the quality at the first place. Depending
on the efforts of the staff, we have been identified by many famous international
certifications: ISO,ASME,IBR. They are the ISO9001 Quality Management System
Certification in 1999, Quality Management System Certification by IQNET and IQM in
2002, and boiler and pressure Vessel certification by ASME in the September of 2008.

3. ZHENGZHOU BOILER CO.,LTD
High and New Technology Development Zone, Zhengzhou,China
www.zghorizontalboiler.com ; www.zgsteamboiler.com
Email: industrialboilermerry@hotmail.com ;merryzzboiler@gmail.com
ZHENGZHOU BOILER CO.,LTD industrialboilermerry@hotmail.com
Our strong financial and technical support , and its own R & D and innovation are the
guarantee of providing customers with pretty good products and services . To meet the
requirement of national low-carbon, environmentally friendly, and energy-saving , our
study team has invented a series of autoclave and ancillary products with excellent design,
high performance and excellent quality. We have 102 sales office in domestic cities which
enjoyed a good reputation, and constantly exported to Southeast Asia, Central Asia ,
Europe and other countries and regions . Also our products have been awarded as the
"Wall Materials and Production Equipment Recommended Products " by the wall
materials industry Association . Our products are widely used in new building materials,
cement pipe, pharmaceutical and medical device manufacturing, aerospace and food
industries.
Web:www.zghorizontalboiler.com
www.zgsteamboiler.com