Combi gas hotel water boiler

WNS series which are boiler of horizontal three pass fire tube with internal combustion. New design with structure of circular furnace wet back and larger volume burning room which can enhance burning efficiency and reduce the emission of Nox. Gas with high temperature is scouring the fire tube the second and third pass in turn. Then the gas is blown into atmosphere through chimney from the back smoke chamber. It used specifically thermal insulation material to lessen the heat loss. It is easy for maintenance due to install the hole for people and hand inside to clean.

General features of WNS series boiler:

1.    horizontal , gas & oil fired , water tube, industrial and low pressure;

2.    wetback and three-backhaulstructure design;

3.    With high efficiency economizer, the thermal efficiency can reach more than 90%.

4.    The spring-loaded type explosion door ensures the boiler safety

5.    The removable smoke boxfacilitates the maintenance

6.    Internal micro positive pressure combustionreduces the low temperature corrosion.

7.    Equipped with protection devicesfor overheating, overpressure, lacking water, leak detection, flameout, etc. This ensures the boiler to operate safely and efficiently.

The product advantage:

1.    Subulate furnace and corrugated furnace combination

Function: (1) Make the structure more compact; (2) improve the thermal efficiency; (3) relieve the expansion and contraction

2.    Smooth tube and spirally corrugated tube combination

The smooth tube

Function: Prevent the exhaust from condensing inside the boiler to prolong its service life ;

The spirally corrugated tube

Function: (1) relieve the expansion and contraction; (2) Heat transfer enhancement;; (3) clean groove by itself.

3.    The furnace sits in line with the combustion

Function: (1) Make the structure more compact; (2) prolong its service life.

1 YLW

We have totally five workshops which covers an area of nearly 3600 square meters and employ 600 person including more than 100 engineers and technicians. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001 certification.

Our products have been exported to many countries all over the world, including Russia, Southeast Asia,  South America, North America, Africa, Mid-East, Romania, Mengolia, Vietnam, Indonesia, etc. The quality of products and our after-sale services have won us good reputation in the oversea market. So we warmly welcome cusotmers to pay a visit to our factory so that they will have a better idea about us and our products.

We have the ISO9001 certificate and the National Grade-A boiler certificate, also with the Green product certificate and many Patent for invention certificates, etc.

Q1: How to install a boiler?

A1: Bangzi Boiler provides completed installation drawing and manual, or send engineer abroad for installation guidance

Q2:How many years is the boiler’s life span

A2: The boiler is designed for 10years life span, but under good maintenance, usually the boiler can use at least 16years, Bangzi Boiler provide full life after-sales service to each sold boiler

Q3: How to choose a boiler model?

A3: Confirm the type (steam or hot water), capacity, working pressure (or output temperature) and fuel(coal, biomass, gas or oil or other fuel) of the boiler, BangziBoiler will suggest a suitable model based on your usage.

Q4: How is the warranty term?

A4: If any problems caused for quality during the warranty period, the Seller will repair or replace the broken parts for free, if the problem caused from the client’s side, the Seller will help supply the spare part at lowest cost. 

Leeson Zhou

Email: leesonzhou at 126.com

Cell/Whatsapp/Wechat: +86 13833185003

Website: www.bzboilers.com