china factory wall mounted type gas fired hot water combi boiler

This product can be used sevral area.

A    CH OUT   

B    DHW OUT   

C    GAS IN 

D    DHW IN   

E    CH IN

What is a Combi Boiler

They combine home heating and on-demand hot water within the same compact unit.  In direct contrast, Open Vent (also called Regular, Standard or Conventional) boilers and System Boilers heat water that’s stored in a tank.  How a combi boiler works (at least a modern combi boiler) is:

• They have two heat exchangers inside them;
• 1. A primary heat exchanger. (For central heating)
• 2. Secondary plate heat exchanger. (For hot water)
• Primary heat exchanger heats and recycles the water that goes through the pipes into the radiators.
• Secondary plate heat exchanger heats up the hot water that goes into your taps.

Heating the Radiators – Primary Heat Exchanger

The primary heat exchanger heats the water that goes into the radiators.  That’s how a combi boiler works to heat your house.  This water travels through the radiators and recycles back into the boiler.  And the boiler keeps firing to reheat that water and keep it at around 60 degrees celsius.

Clean, Drinking Hot Water – Secondary Plate Heat Exchanger

The water that travels through the radiators and recycles back to the combi boiler is undrinkable.  To give you clean, hot, drinking water, how a combi boiler works when you turn on a hot water tap in your house, is it pauses the central heating, or heating of the radiators.  And then opens a diverter valve which lets the recycled heating water enter the secondary plate heat exchanger heating the sealed pipes carrying the clean water delivering them to your hot water taps or shower.  When this switching happens, you will hear some boilers switching on and off as you open the taps.

Zhangjiakou Dabei boiler Machinery Co., Ltd. was founded in 2007, located in No.22 Jiahe Road,High -Tech Industrial Development Zone, Zhangjiakou, Hebei, CN, with a registered capital of 68 million yuan, covering an area of 15000 square meters. It is a new type of technology and environmental protection industry. Based on the principle that quality is fundamental and reputation is life, we have successively obtained environmental management system certification, quality management system certification and occupational health and safety management system certification, gas boiler intelligent control system certification, electric boiler intelligent control system certification and other certification. Our products are suitable for industry, agriculture, commerce, medicine, education, service, civil and other fields. Implement the whole process inspection control mode of "purchase inspection production inspection installation inspection operation inspection after sale service inspection", continuously improve the product quality and R & D ability, appreciate the brand, adhere to the corporate culture, forge ahead and strive to create a new era of 100-year boiler enterprises.

Q1: How to choose a boiler model?

A1: 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, we will suggest a suitable model based on your usage.

Q2:What is the using life of your boiler?

A2: Normally the boiler is designed for 20 years life span, but with right operation and good maintenance,the boiler can be used for 20-25 years.

Q3: What is your MOQ?

A3: 1 piece/set.

Q4: Do you have any one in stock?

A4: Yes, we have. There are some Chinese popular boilers in stock.

Q5: Can you supply OEM or ODM product?

A5: Yes, we can.

Q6: How to install a boiler?

A6: We will provide a video and document for installation. If you still have problem,we will send engineer to your site for guiding and training.

Q7: How is the warranty term?

A7: If any problems caused for quality during the warranty period, we will repair or replace the broken parts for free, if the problem caused from the client’s side, we will help supply the spare parts at lowest cost.