I was in three well-known brands have done gas stove gas with more than 8 years of production and assembly , and is currently a part-time technical adviser at Yise applicanes , gas stove on domestic development of the brand , technology, quality , etc. can be said to be learned by heart .
1 Select or embedded desktop stove ?
At present, the gas stove is divided into desktop and embedded two kinds . General appearance as embedded desktop stove stove look good, but because the air intake and other reasons, desktop stove thermal efficiency is generally slightly higher than the embedded stove . However, as people increasingly demanding kitchen environment , as well as the whole cabinet technology matures, more beautiful embedded gas stove gradually become the mainstream desktop market share of more low stove
(2) determine the gas source
Next we determine the source of the gas stove . That is, choose burn natural gas ( pipeline gas T), burning liquefied petroleum gas ( bottled gas Y), or burning artificial gas ( pipeline gas R), gas stove . Different gas , pressure, heat , prices of these are different, often with a gas stove can not mess ventilation source, so you want according to your needs or local conditions which determine the choice of gas fired gas stove . Which ranked calories are: LPG > Natural Gas > artificial gas .
3 panel material
Now the main panel gas stove stainless steel, ceramic , glass three materials . Youyi most common stainless steel and tempered glass . Among them, the aesthetics : Glass > Ceramics > Stainless Steel ; Durability: Stainless steel> glass = ceramics ; Yi Cleanliness: Glass > Ceramics > stainless steel .
Now gas stove glass panel anti-cold , impact strength aspects are generally not a problem , technology has been very mature.Even occasional cracking the case , the probability is very, very small , and the split fragments together , not hurt. Impact resistance than glass ceramic panel almost, but slightly stronger heat resistance .
Stainless steel panel application of the earliest and most widely used, but if the material is not good , or the panel and the bottom shell buckle well, a long time after prone to warpage. So choose stainless steel panel gas stove , the election panel Disk button more science will be more durable. In short, the length of each panel of three materials , face election , the election body, or to vote for housekeeping , to see your own. I personally favor of tempered glass .
4 way into the wind
Gas combustion requires oxygen in the air , into the wind actually carry oxygen. Inlet gas stove can be divided into motivated wind , down into the wind are two, and some manufacturers also put under the inlet called full into the wind .
( 1 ) motivated the wind : the primary air required for combustion comes from the upper part of the gas stove .
( 2 ) the inlet air : the primary air required for combustion comes from the stove bottom ( on the bottom of such a gas stove air intake holes and adjusting the size of the air damper )
Stove seen currently on the market , the lower air intake has . Which require lower inlet gas stove damper , lasting for a certain temper and deflagration small problems, but it will be much affected . So now many manufacturers refer to a purely motivated foreign wind stove, are developing their own style kitchen is fully motivated , because the wind was motivated industry hailed as the most secure stove, but purely motivated by the wind , the air supplement often not sufficient firepower is relatively small , the thermal efficiency and CO are not very satisfactory. Like some brands of firepower have only 3.8KW, and this is why , affecting normal use . However, there are manufacturers have developed a fire and thermal efficiency and CO are very good indicators of the fully motivated wind stove .
5 fire cover is one of the core components of the gas stove , fire cover material, fire-hole design is very important .
Currently china gas juh cover mostly copper alloy material , but also two types of copper alloys . One is about 53% copper content in the container loaded brass , which is the most domestic enterprises and some cottage plant material used . Another 57% of the copper content is printed on non-standard cast brass, copper alloy one kilogram of this cabinet mounted brass expensive than tens of dollars , so the quality is better.
Fire cover fire hole design more. However, there are hole -type , trapezoidal , rectangular , bar and so on. Which is the first generation of hole -shaped fire cover , a long time ago , more common , easy to plug , often use a toothpick , needle or something clear about the fire hole impurities , it would burn fire cover . Keystone is still relatively rare. Overall strip fire hole thermal efficiency higher power than other fire hole bigger , more suitable for Chinese people fried, explosion , choking and other cooking habits.
6 . Combustion
Gas stove flame in accordance with the direction of the fire can be divided into direct fire burning, fire burning side , rotate the fire burning.
Direct fire burning very common , that is, the vent up, flames from bottom to top , perpendicular to the bottom of the pot .
Side of the fire burning fire flame hole round cover mainly based, not on the vent cover above the fire , and the fire cover four weeks , obliquely toward the bottom of the pan spray .
Rotate the fire burning fire flame hole cover strip is mainly due to a gas suitable mixed with air more fully, but the blue part of the flame temperature is highest towards the bottom of the pot basically , so this way the highest thermal efficiency of combustion , a higher concentration of firepower more suitable for stir-fried dishes such as Chinese practices .
7 Ignition
Gas stove ignition divided into piezoelectric ignition and electrical pulse ignition two kinds .
Piezoelectric ignition mainly used some of the old-fashioned gas stove desktop , and now better gas stoves are no longer using this method of ignition . Piezoelectric ceramic is a special material, when it is under pressure or distort the surface will be charged , will be able to export its surface electric spark . But this time the button can only twist ignition spark spray once , so the success rate of fire than the electric pulse ignition is much lower , more trouble.
Electrical pulse ignition gas stoves need to install the battery end of its high success rate ignition , typically 100%. Because it only once you twist the button, you can eject a continuous spark until lit up .
Both ignition contrast, electrical pulse ignition will be better.
8 flameout protection device
Flameout protection device is a gas stove due to unexpected flameout ( eg when cooking water overflow will fight off the fire and the like ) , gas stoves automatically turn off the gas source, to ensure the safety of your device is divided into thermoelectric and ion sensing two.
Thermoelectric : perception by thermocouple temperature thermoelectric power generated to the principle of opening and closing the solenoid valve . This flameout protection device is a thermocouple, a gas solenoid valve control only channels , high safety factor : that if one fails , another one will not affect the normal use of the stove , stable, reliable, and generally do not need an external power supply . But it has a certain thermal inertia , so that the output current is not complete with thermocouple flame and immediately disappeared, slow to react to unexpected flameout , it normally takes 5-10s or so to shut off the gas valve , but this amount is not cause leakage any security problems . Currently, most brand manufacturers stove are optional in this way , in which Spain 0KALI flameout protection device produced the most stable .
Ion induction : The main advantage with ionizing flame , with unidirectional conductivity principle invented ( flames representing a piece of wire ) . This approach has the advantage of cutting off the gas quickly. But only for single gas channels through this protection device after gas channels can not be separated , or will cause malfunction and cause leakage ; so if flameout protection device is damaged, the entire stove can not be used , followed by the need for external power supply , power consumption, usually 2-3 months once the battery needs to be replaced .
9 . Thermal efficiency
The higher thermal efficiency of the gas stove , indicating more energy efficient. State regulations in 4.2Kpa Rated gas pressure, gas stove desktop thermal efficiency must be 55% or more , embedded gas stove thermal efficiency should be 50 % or more.Thermal efficiency by way into the wind , the fire cover design influenced other reasons . Therefore, the thermal efficiency of the gas stove to see not just look at how many business standard , but to pay attention to see its way into the wind , and fire, cover design , etc. In general, many of which are close to direct fire pot along combustion heat to easily dissipate , rather Swingfire As can concentrate pot burning , fire is not only larger, thermal efficiency is relatively high than direct fire .
9 . Thermal efficiency
The higher thermal efficiency of the gas stove , indicating more energy efficient. State regulations in 4.2Kpa Rated gas pressure, gas stove desktop thermal efficiency must be 55% or more , embedded gas stove thermal efficiency should be 50 % or more.Thermal efficiency by way into the wind , the fire cover design influenced other reasons . Therefore, the thermal efficiency of the gas stove to see not just look at how many business standard , but to pay attention to see its way into the wind , and fire, cover design , etc. In general, many of which are close to direct fire pot along combustion heat to easily dissipate , rather Swingfire As can concentrate pot burning , fire is not only larger, thermal efficiency is relatively high than direct fire .
10 thermal load
Gas stove heat load equivalent to the size of the power and firepower , so the greater the heat load , fire more fierce . State gas stove heat load 3.5KW more. Selected with the thermal efficiency of the thermal load , the bottom of the waste gas emissions talk considered, because they tend to affect each other. Do not simply think that the higher the heat load of the underlying businesses , the product is like. The heat load is high , maybe low thermal efficiency , CO emissions is high. Just choose my wife, do not just look at looks , but also health, knowledge, training , etc., which is a reason.
11. CO emissions
State of CO gas stove exhaust emissions shall be ≤ 0.05%. Because the thermal load , the thermal efficiency , CO emissions performance of these three indicators are often gas stove shift , it is possible to truly are less good . ” Green Product Award” is awarded to the country have made outstanding contributions to environmental protection enterprises , which is a measure of the amount of CO emissions is an important indicator of this award . Also tell you a little secret , the general pot rack will directly affect the level of the inlet , will affect whether the incomplete combustion of gas , pot rack low CO emissions will be higher . We have just repeated mention of CO and thermal load and thermal efficiency of checks and balances is generally a good stove to control CO emissions in the case of low , but also a raging fire and high efficiency.
12 air-tightness
Gas stove tightness relating you and your family personal and property safety , so no trivial matter. State regulations, standards in 4.2Kpa gas under pressure from the gas inlet to the gas valve leakage shall be ≤ 0.07L / h. Your own home, a simple test is connected to the gas source, gas stove switch knob is set to off , and then use a small amount of soap or detergent water brush piping , valve and interface , no bubbles basically do not leak or minimal leakage.
13 selected brands
Average consumer advertising is considered to play a good brand , or the high price is a good product , this idea has some truth in it . But the fact is often not the case, sometimes advertising is indeed too Bluff. Of course , in general, of course, choose the brand -name than more secure. But the brand is also sub-professional and non-professional brand brand . Such as the United States, as many as hundreds of its products , although it is a big brand , but it’s impossible to do everything fine, everything to take first . Another example is Haier made refrigerators, washing machines doing well, but it’s not as good as Lenovo computers , TV as good as Hisense, is the truth.
14 cost
Do not have to buy the most expensive gas stove , but they can not pursue cheap , must be the best value for money that we at the time of purchase , more than on what function ah , technical parameters ah , security, performance , energy-saving ah , etc.,on this basis, and then to see the price , and if blindly believe the high price is good, then you probably want to buy a gas stove for your overpayment half of the advertising fee , while if you only cheaper , probably less than half months , you will find this a problem , that would cause a problem. So I suggest ah , multi compare their different connotation in the product can not be blind ad.