How to choose a gas water heater ? To put it simply, first look at the price, secondly look at the brand, thirdly look at the functional configuration, and fourthly look at the after-sales warranty.
1. Price
How much your budget is depends on how much the item costs. If you have a budget of 1,000 or 2,000 yuan, don't look at 5,000 yuan or 6,000 yuan, because you won't be able to buy it, and you will be spoiled for choice. If you want to use 2,000 yuan to buy a 5,000 yuan gas water heater, that is not realistic.
2. Let’s talk about the brand
Should I choose a domestic brand or a foreign brand?
domestic brands are based on the mass consumer group and focus on mid- to low-end products. With the rapid development of science and technology, some domestic brands have also begun to expand high-end product lines.
foreign brands developed earlier and mainly focus on high-end products in China. For example, the German brand Tver was founded in 1930, 49 years earlier than the birth of the first domestic gas water heater. In some high-end technologies, Tver has accumulated profound experience and its applications are relatively mature.
3. Function configuration The benefit of
's early development and accumulated technology is that the configuration is better. The core configuration of
gas water heater should look for these: water inlet valve, air inlet valve , CPU (computer board), heat exchanger , fan, and exhaust pipe.
water inlet valve/air inlet valve: is located inside the water heater, at the water inlet and gas inlet. Used to adjust the water inlet flow and gas flow.
In the water inlet valve industry, there are generally memory alloys and water volume servers. The water volume server is preferred because the water flow control is more accurate.
air inlet valve is a gas proportional valve. It has single hole or two holes. The one with more holes can control the pressure and flow more accurately.
CPU: is connected to the computer board of all lines of the water heater and plays a control role. If it breaks, the water heater is considered useless. The computing speed of the CPU determines its constant temperature capability. Just like a mobile phone, 12G memory is stronger than 8G. Each brand of
uses different CPUs. For example, Tver, which is independently developed by the brand, has an efficiency of 5 million operations per second and can achieve a constant temperature of ±0.5°C, which is rare in the industry.
heat exchanger : It is a water tank, but the water does not enter the water tank directly, but passes through the water pipe, interspersed around the water tank. The inside of the water tank is a semi-hollow structure, and the materials are stainless steel, oxygen-free copper , and phosphorus deoxidized copper. Stainless steel is obsolete.
oxygen-free copper is pure copper , red copper . Phosphorus deoxidized copper is deoxidized with phosphorus. Because phosphorus has thermal conductivity, phosphorus deoxidized copper has stronger thermal conductivity.
means phosphorus deoxidized copper>oxygen-free copper>stainless steel.
fan: provides oxygen . There are two types: top-mounted fans and bottom-mounted fans. The upper fan of
is close to the smoke exhaust port and heat exchanger. It is baked by high temperature and has a short service life. The fan is installed at the bottom, close to the hot water outlet, with smooth air intake and is not subject to high temperature baking, so it has a long service life.
means bottom fan > top fan.
exhaust pipe: In addition to outdoor units, gas water heaters require exhaust pipes for exhaust gas emissions. The material is generally stainless steel or aluminum foil tube.
Due to the high temperature of the exhaust gas produced by combustion, the industry has generally begun to use stainless steel, and aluminum foil tubes have basically been eliminated.
Stainless steel exhaust pipes vary in thickness. Thin ones are lighter and easier to deform. The thick one is slightly heavier, has good heat and sound insulation effect, and has good smoke exhaust effect.
The common exhaust pipe is a pipe with openings at both ends. But there are also special ones. The exhaust pipe of Tver gas water heater, which extends to the outdoors, is closed to prevent the backflow of smoke. How to discharge the exhaust gas from
? Several circles of honeycomb holes are designed at the end of the tube to make it easier for smoke to escape.
4. After-sales warranty
Manufacturers that currently sell gas water heaters have after-sales services, including replacement, repair, and warranty. Pay special attention to
. It is guaranteed to be repaired without having to spend any money. Where did you buy it and get it repaired? The warranty is different. There is a fee for the master to come to repair.
Tver gas water heater comes with a one-year replacement and five-year repair guarantee.It also comes with 8 years of Pacific Product Liability Insurance, which means that if the product has non-human quality problems and causes you losses, you can directly seek compensation from the brand, mainly the third-party Pacific Insurance Company . So if you buy a Tver gas water heater, be sure to keep the warranty during use.
Gas water heaters are household appliances that have been used for a long time. For safety reasons, you must choose a brand with good quality, perfect performance, and guaranteed after-sales service. If financial strength allows, it is recommended to choose high-end brands.
