By Lorraine | 11 July 2020 | 0 Comments
Selection guide for fish tank heater
There are many small devices in the fish tank, such as aeration pumps, wave pumps, water thermometers, fish tank lights, heater.
One is the resistance wire wound on the ceramic tube. This is the most primitive heating medium and the design idea with the highest risk factor.
Early quartz glass heaters and stainless steel heater were adopted this design.
Its advantages are low technical requirements and affordable prices, and its disadvantage is its high failure rate.
The other is the PTC ceramic heating plate, which is the current mainstream heater design. Many fashionable heater use PTC ceramic as the heating element.
Its advantage is that the temperature extreme value is very low, which not only meets the needs of aquariums but also has no hidden dangers. Its shortcomings are also obvious, only one word-expensive.
Thermal sensitivity refers to the ability of the heater to determine whether to operate or not when the water temperature changes after setting the water temperature value.
For example, you set the target temperature of the heater to 28 degrees Celsius. When the water temperature really reaches this value, how long will it take for your heater to accurately sense this value, and then immediately make an action to turn off the heater on the contrary, when the water temperature is below a certain value, its response speed to this signal is very important. This index determines the quality of a heater to a large extent.
The biggest shortcomings of the early glass heater and stainless steel heater are the low thermal sensitivity, the target temperature and the actual temperature do not match, causing some ornamental fish to become sick and die. The lower thermal sensitivity is the fatal disadvantage of the old heaters.
The PTC ceramic heater may not be able to solve this problem perfectly. To really solve this problem, it is still necessary to move the thermal induction point away from the heater. At present, some high-end heater is designed like this.
The specific method is to install a relatively long induction line on the heater. One end of the induction line is connected to the heater, and the other end is a thermal induction rod. Some thermal induction rods are placed in the fish tank water, and some are placed in the outer wall of the fish tank. In short, it is a very rational design idea to make the induction point far away from the heater.
Select the heater, it's the most important to check the heat source material.
There are three kinds of heat source materials in the heater on the market, and two of them are the most common.One is the resistance wire wound on the ceramic tube. This is the most primitive heating medium and the design idea with the highest risk factor.
Early quartz glass heaters and stainless steel heater were adopted this design.
Its advantages are low technical requirements and affordable prices, and its disadvantage is its high failure rate.
The other is the PTC ceramic heating plate, which is the current mainstream heater design. Many fashionable heater use PTC ceramic as the heating element.
Its advantage is that the temperature extreme value is very low, which not only meets the needs of aquariums but also has no hidden dangers. Its shortcomings are also obvious, only one word-expensive.
Select the heater, and then check the thermal sensitivity
What is the "thermal sensitivity" of the heater?Thermal sensitivity refers to the ability of the heater to determine whether to operate or not when the water temperature changes after setting the water temperature value.
For example, you set the target temperature of the heater to 28 degrees Celsius. When the water temperature really reaches this value, how long will it take for your heater to accurately sense this value, and then immediately make an action to turn off the heater on the contrary, when the water temperature is below a certain value, its response speed to this signal is very important. This index determines the quality of a heater to a large extent.
The biggest shortcomings of the early glass heater and stainless steel heater are the low thermal sensitivity, the target temperature and the actual temperature do not match, causing some ornamental fish to become sick and die. The lower thermal sensitivity is the fatal disadvantage of the old heaters.
The PTC ceramic heater may not be able to solve this problem perfectly. To really solve this problem, it is still necessary to move the thermal induction point away from the heater. At present, some high-end heater is designed like this.
The specific method is to install a relatively long induction line on the heater. One end of the induction line is connected to the heater, and the other end is a thermal induction rod. Some thermal induction rods are placed in the fish tank water, and some are placed in the outer wall of the fish tank. In short, it is a very rational design idea to make the induction point far away from the heater.
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