How to buy fish tank heating rods

Summary: The temperature of the fish tank is crucial, and the temperature maintenance needs to be completed by the heating rod, so which kind of heating rod is good? How to buy fish tank heating rod? There are many types of heating rods, according to the control method is divided into the first generation of bimetal mechanical temperature control, the second generation of thermistor detection and control of temperature, the third generation of intelligent heating rods. According to the material is divided into glass heating rod, stainless steel heating rod, quartz heating rod, ceramic heating rod. The following is to understand the purchase of fish tank heating rod skills. First, the heating rod which is good

(a) according to the control method

1, the first generation of bimetal mechanical temperature control heating rod

The first generation of the heating rod is directly with the bimetal mechanical temperature control is the most common, simply put in the heating rod placed inside a bimetal, bimetal is a bimetal of two different materials, the use of a special process combined with In the temperature change due to the different expansion coefficients, so that the metal sheet according to the temperature change deformation, the use of bimetal placed inside the heating rod as a contact switch, the use of this point can be reached after the temperature of the automatic contact disconnect temperature control, temperature control is not allowed to have the shortcomings.

2, the second generation of thermistor detection temperature type heating rod

This heating rod by signal amplification with SCR and other control of the heating rod, we often call the cylinder outside the temperature control heating rod or split temperature control heating rod. The working principle is that the temperature control system outside the tank through the tank water thermistor probe to control the water temperature in the tank, in the temperature control system in the heating system is separated from the case of heating. Advantages are faster heating, temperature control is more accurate, you can put the thermistor and the heating rod were placed in the distance away from the place, which just overcame the shortcomings of the heating rod bimetal temperature control. But other shortcomings are also very obvious, first of all, more than one thermistor line, the installation is more complex, and then the thermistor if you are not careful to leave the water, it will keep heating, brewing "boiled fish" tragedy. But now for this shortcoming, the market part of the brand, the heating rod have increased the thermistor out of the water power failure alarm function, there are many thermostats using liquid crystal display temperature to control.

3, the third generation of intelligent heating rods

The third generation of heating rods is controlled through the APP intelligent heating rods, such as Gee Indian is through the wifi cell phone APP remote control of the heating rods, and can set the temperature you want to set the safety range. It is the latest heating rod technology. Through the monitoring unit, control unit, regulating unit three parts of the correlation and interaction of the ecosystem from the unstable state to a stable state of a set of systems. Compared to traditional heating rods, which only have a regulation unit that can't accurately recognize the temperature and work mechanically. This is the difference of intelligence.

(B) according to the material

1, glass heating rods: generally used riot glass shell, has a low price, wide range of use, can be applied in a variety of aquarium features. The shortcomings are easily broken. Large aquariums must be equipped with a protective cover if used, lest the fish damage.

2, stainless steel heating rod: generally stainless steel shell, with strong, durable, texture and other advantages. But the disadvantage is that some corrosive environment can not be used, such as marine tank.

3, quartz heating rods: the use of special processing of milky quartz tube, with resistance to synthetic materials, durable, corrosion-resistant, sea water tank can be used and other advantages. But the shortcomings of the price is relatively high.

4, ceramic heating rods: PTC ceramic heating rods are now commonly used ceramic heating rods, the use of PTC ceramic heating element and aluminum tube composition. There are advantages of small thermal resistance, high heat transfer efficiency, is an automatic constant temperature, power saving electric heater. There is also a MCH ceramic heating rod using alumina ceramic is a new type of high efficiency and environmental protection and energy saving ceramic heating element, built-in electric wire, compared to the PTC ceramic heaters, MCH material is more environmentally friendly, with the same heating effect in the case of saving 20-30% of the electricity, the service life is also longer.

Two, how to buy aquarium heating rod

1, power

China's heating rod manufacturing technology has been very mature, a lot of state-owned brands are very good quality. From the power point of view 50W to 1000W basically have, and more commonly used 100W, 200W, 300W, etc., fish tank to use how powerful heating rod, need to be calculated according to the size of your body of water, such as a liter of water is generally calculated according to 1.5W-2W. The size of the power, big waste of cost, small enough to do the appropriate best.

2, temperature control

Heating rods generally have two types, one is temperature control, one is not temperature control. Non-temperature-controllable heating rods must be used in the presence of a thermometer. The temperature-controllable heating rod is relatively more convenient, accurate temperature control, heating in time. It is worth mentioning that the price difference is large, you can choose according to your own situation.

3, material

Heating rod material is mainly divided into: metal type, glass type. Among them, the glass heating rod is cheap, the sales volume is relatively large, is the highest utilization rate of the market. The metal heating rod, not easy to break, better stability, higher security, but there is a little bad place, metal heating rod is not very suitable for seawater aquaculture use, poor quality is easy to rust, so try to choose a big brand products when you buy, the quality is guaranteed.