• July 15. 2022

What is limescale? First of all,technically, the scale is mainly composed of calcium carbonate and magnesium carbonate salts, sounds a lot like limestone, right? Completely correct! Scale is basically limestone deposited in the water. Absolutely pure water, chemical formula as H2O, is a colorless and odorless liquid at room temperature. However, there is no pure water in nature. Water will dissolv...

• April 01. 2022

When we take a bath, what we are most concerned about is whether the temperature of the hot water is stable. This involves the constant temperature function of the gas instant water heater. The constant temperature function of the gas water heater is when the inlet water flow and inlet water temperature change, the outlet water temperature of the gas water heater can be maintained at the set tempe...

• March 17. 2022

In China, electric water heater are mostly categorized into storage and instant electric water heater. Though electric tankless water heaters are sold in many home appliances stores, either online or real-stores. But over the past few years, electric storage water heaters ranked No.2, right after gas tankless water heater in terms of sales of hot water heaters for household. Therefore, we herein c...

• February 18. 2022

Both gas water heater and gas combination boiler can produce hot water.  What on earth are the difference between the two? As we all know, gas water heater is used to supply domestic hot water(DHW) for household, while gas combinationboilercan supply hot waternot onlyforspace heating but also DHW.  In China, these two are subject to different standards. For gas water ...

• February 09. 2022

1. Why does the temperature of domestic hot water produced by combination boiler sometimes go up and down? First，when flow rate of cold and hot water is unevenly distributed, the combination boiler would automatically adjust accordingly.This makes the DHW temperature go up and down or even results in flame out. Therefore, the user is supposed to set the temperature agreeable to them and refrain fr...

• December 17. 2021

Wall-hung boilers are divided into standard efficiency and condensing wall-hung boilers in respect of thermal efficiency. Standard Efficiency Boiler The classification of standard efficiency wall-hung boilers is also very diverse. If there is no fan, it is called an atmospheric natural exhaust type wall-hung boiler. This type of wall-hung boiler does not have forced exhaust and air intake by the f...

• September 14. 2021

Generally speaking, the service life of a regular wall-hung boiler is 10-15 years, but due to the influence of the material, production process, core technology, parts etc, the service life of the inferior wall-hung boilers may be 5-8 years. A wall-hung boiler with excellent quality may still have stable performance after 15-20 years of use. Combination boiler lifespan is related to water quality ...

• August 10. 2021

In 1972, Premier Zhou was gifted two 5L direct vent gas water heaters when he stopped at Hong Kong in his way to visiting Europe. Under his command, China started studying and developing household water heaters since then. In 1979, the first gas water heater for home use was worked out in Nanjing, China. This symbolized the end of times when Chinese people used pot to heat water for shower. After ...