What is the working principle of boiler economizer?
The boiler system consists of boiler body, energy-saving equipment, instrument valves, water treatment and control system, and some will add economizer. Because many users don't know what the working principle of boiler economizer is, here ZOZEN Boiler will answer for you.
Working principle of boiler economizer
Boiler economizer, as its name implies, is a boiler device for saving energy, which is generally installed at the tail of boiler flue and used to recover the waste heat of high temperature flue gas.
The working principle of the boiler economizer is that the flue gas at the tail of the boiler enters the economizer, and the water in the economizer absorbs the temperature in the flue gas through the finned tube, and then returns to the boiler, which is equivalent to raising the feed water temperature of the boiler, and reducing the energy consumption under the condition of a certain boiler output.
Rational configuration of boiler economizer in ZOZEN boiler to improve thermal efficiency
Wuxi ZOZEN Boilers Co., Ltd. is a China Class A boiler manufacturer integrating design, manufacture, sales, installation and service. It holds Class A boiler manufacturing license, Class D1D2 pressure vessel manufacturing license, American ASME standard "S" (power boiler) and "U" (pressure vessel) license steel seal, and has passed the ISO 9001: 2000 international quality system certification. With the accumulation of manufacturing boilers for more than 30 years, the company has formed a variety of specifications such as gas boilers, biomass boilers, coal-fired boilers, circulating fluidized bed boilers, and thermal oil heaters, which are widely used in chemical industry, food, brewing, heating, paper making, printing and dyeing, rubber and other industries. According to the working principle of boiler economizer, ZOZEN boiler reasonably designs an efficient boiler heating solution.
-
WNS series gas-fired (oil-fired) skid-mounted hot water boilerLive Chat0.7-2.8 MW1.0 MPa
-
DZW series biomass-fired reciprocating grate steam boilerLive Chat15-35 t/h1.25 MPa / 1.6 MPa / 2.5 MPa
-
DZL series biomass-fired steam boilerLive Chat2-10 t/h1-2.5 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat

-
On the edge of the tropical jungles of Sumatra, Indonesia, the hum of machinery blends with the scent of palm fruit, painting a busy picture of the local palm oil processing industry. As a key global production base, Indonesian oil processing enterprises have a high dependency on reliable thermal energy supply. Booming Oil Processing Industry in Indonesia Recently, Wuxi ZOZEN Boiler Co., Ltd. ("ZOZEN Boiler") successfully delivered and commissioned a 15 t/h SZL series coal-fired steam boiler...03 Feb 2026 -
As clean heating upgrades continue to accelerate across northern China, high-efficiency and environmentally compliant heating equipment has become essential to ensuring winter heating security while supporting the country’s carbon reduction goals. In Tianjin, several large district heating companies have independently selected the same core solution — the ZOZEN SZS series gas-fired hot water boiler — delivering stable heat throughout the winter while contributing to improved ai...27 Jan 2026 -
The Regulations on the Administration of Rare Earths, effective from October 1, 2024, are accelerating the rare earth industry’s standardized and intensive transformation under the framework of resource protection, compliant governance, and green development. As demand for rare-earth permanent magnet materials from sectors such as new energy vehicles, wind power, and intelligent manufacturing stabilizes and improves, industry sentiment is rebounding. As the “World Capital of Rare Ear...20 Jan 2026











