Gas appliances, hot water heater special rate is not random variety of standard list.

Hunan Provincial Bureau of Quality Supervision <p> 4th quarter of 2008, the province's market in the off gas appliances and other products for a special anti-counterfeiting checks. .Sampling results show that the snow Life Science, Zhongshan City Electric Co., Ltd. production specifications JSD20-8M1 scientific Fisher-Price domestic gas instantaneous water heater, Shenzhen City, Yushchenko Laser Electric Co., Ltd., Zhongshan City, Mrs. Wang Electric Co., Ltd. production of a particular model of gas water heaters .Water rates are mainly the result of production and on the Heibang. .</ P> <P> <P> <p> key indicators, but off </ p> <p> spot checks found that substandard products are still a number of key indicators in the "off the chain." .First, natural vent water heater products in the gas flue is blocked state failure. .Naturally depend on the flue exhaust is pumping force generated by the combustion of natural gas emissions, due to natural vent water heater in use by the impact of the wind outside, smoke may appear sluggish, the state standards for such work .state concentration of harmful gas emissions, has made it clear that the concentration of carbon monoxide emissions shall not exceed 0.06%. .Checks in the concentration of individual products, carbon monoxide gas emissions target of 0.08% to 0.18%. .Excessive use of carbon monoxide gas concentrations in the product, in the face of the flue blocked, will produce large amounts of harmful carbon monoxide gas, to bring to consumers the potential safety hazards. .</ P> <p> Second, failure rate of individual products, hot fish. .Aquatic products, heat rate reflects the actual production capacity of hot water meets the nominal value of the product is domestic gas instantaneous water heater specifications by an important indicator of the consumer to purchase products important reference. .National standard rate of heat Fisheries not less than 90% of indicators for testing, thermal aquatic products in the rates of individual inspection only by 75%. .</ P> <p> big is the root cause of the small trailer </ p> <p> It is understood that in the previous national and local checks, the hot gas emission rate and Fisheries, and several other indicators as the most important reason for product failure .. .So, several indicators of this failure is due to what? .What is the material or workmanship problem? .</ P> <p> "lead to thermal failure rate of the most important factor in aquaculture is cutting corners some SMEs, the production enterprises in order to reduce costs, reduce the heat transfer film on the number of heat exchanger, resulting in higher exhaust gas temperature, high temperature .flue gas heat is not fully absorbed, resulting in lower heat transfer efficiency water heaters. .In addition, some companies posing as a small flow of products also contributed to the large flow one of the reasons the project failed, the industry is called a small drag large. .This indicator is the highest failure rate, especially in secondary and tertiary markets. ."Is located in Foshan, a quality inspection center of national gas technical experts told reporters. .</ P> <p> national standards for domestic gas instantaneous water heater water temperature requirements of strict mandatory installation of anti-overheating safety device, when the water temperature is too high to avoid causing burn accident. .In spot checks, some companies failed thermal safety products. .Some products, though reserved for thermal safety device is installed, but did not install the device. .Some companies to reduce costs, then simply cancel the device is installed. .</ P> <p> gas emissions, air tightness of these indicators, human life is undoubtedly the most important indicator of the gas with a gas water heater with flammable, explosive characteristics, if the product is not airtight .qualified, accidents may occur. .Therefore, the leakage of national standards of their strict requirements. .The expert pointed out: "sealing performance and the rubber seals used in a great relationship, and some products manufactured examination is qualified, subject to vibration during transport, if the product structure is not reasonable, after the shock will lead to seal cracks. .This is also found in spot checks, and this is a large drain leakage, more dangerous. ."</ P> <p> gas water heater used in gas emissions produced by combustion of carbon monoxide and other toxic substances contained in, can not be quickly discharged, causing injury to the user. .National compulsory standards on emissions of carbon monoxide in the flue gas, there are strict limits requirements. .</ P> <p> in the domestic production of most products and forced exhaust gas pass. .Flue-type water heaters are usually powered by the two batteries, combustion of natural gas through the exhaust pipe to rely on pumping power emitted into the outdoors. .Experts said: "If a large exhaust port resistance, susceptible to this type of water heater caused the impact of outdoor smoke impeded the wind, so the less windy areas throughout the year more applicable. .Such as installed in the bathroom and room, to higher risk. .So we have stressed, flue outdoor water heater installed in the ventilation to a better place. ."</ P> <p> forced exhaust type water heater need to connect the 220V power outlet, the combustion gas water heater through the exhaust pipe to rely on pumping force generated within the fan discharge to the outdoors, so some of the relative safety of the use of water heaters, but .the case of home users can not use power. .</ P> <p> It is understood that large enterprises and medium-sized cities to force the main water heater exhaust, and to keep the amount of the market, the flue type water heaters in the second tier cities are still accounted for a large proportion. .</ P> <p> Expert Tips </ p> <p> national gas quality inspection center staff to remind consumers, gas water heaters constantly upgrading, businesses provide consumers with convenience, but also the possibility of safety .available to the consumer. .Therefore, consumers should enhance self-protection, gas water heaters are familiar with the basic use common sense to select high quality, high security products. .</ P> <p> the safe use of domestic gas instantaneous water heater, experts recommend that consumers pay attention to the following issues: </ p> <p> 1, using liquefied petroleum gas water heater products, users must pay attention to election .Share good valve (water heaters and liquefied petroleum gas cylinders connected components), many carbon monoxide poisoning are made of poor quality, inexpensive valve caused. .</ P> <p> 2, consumers in the use of gas water heaters must carefully read the instructions before, and product safety instructions posted on the shell content. .These elements include: product is suitable for gas type of warning, the use of ventilation during the precautions and AC power grounding problems. .</ P> <p> 3, consumers with products in the long-term use of gas in the process of connecting pipe to periodically check whether there is gas leakage phenomenon, after use for long-term variability may occur due to material phenomena of gas connections leak soft .pipe or fittings and so on must be replaced as soon as possible to solve all kinds of insecurity. .</ P>.