Methods/steps
Look at the heating body
The main function of the heater is to generate heat, so you must look at the heater before buying it.
(1) Look at heating materials: distinguish between ordinary heating wire heaters and PTC heaters. The cost of electric heating wire heater is relatively low. The heating wire is generally made of iron-chromium wire, which is usually a small heater. The price is relatively low, the power is set at 1000W~ 1800W, and the price of electric heating wire heater is between 100 200 yuan. PTC heater is made of PTC ceramic sheet, which is light-free and oxygen-free, with high safety. It is a relatively high-end heater material at present. The power setting is generally 1.800 W ~ 2000 W, and the product price is generally 1.500 yuan ~500 yuan.
(2) Comparing the sizes of heating elements: From one point of view, the larger the heating element, the better the thermal effect. Therefore, under the premise of determining the materials of heating elements, we should pay attention to the sizes of heating element components.
(3) Comparing the structure of heater: The structure of PTC ceramic heater will affect the heating effect to some extent. At present, there are two kinds of PTC combination: a. closed PTC heater; Hollow PTC heater. The thermal effect of closed PTC is relatively concentrated, and the effect will be better, depending on the product power.
Look at warm air and so on.
Buy a heater to see the category. The setting of natural damper of heater is ignored by many consumers, but from the point of view of product performance and use, it is much more scientific to have natural damper than not to have natural damper. As PTC is a heating element, sudden shutdown under the premise of high heat will lead to obvious thermal attenuation of PTC ceramic sheets. Zhong Ziran wind of 1 min is blown after the PTC heater is turned off, aiming at dispelling the preheating of the PTC heater, thus reducing the thermal attenuation of the heater and prolonging the product life.
Look at the additional functions of the product
(1) Shake head function: Shake head function can expand the heating area of the product.
(2) Temperature control function: The temperature control button function can intelligently adjust the working state of the product according to the ambient temperature and human body temperature, which is helpful from the perspective of energy saving.
(3) Negative ion function: Negative ions can freshen the air and adjust the air quality in a closed space, and will not cause discomfort if used for a long time.
(4) Wall-hanging function: Wall-hanging installation is realized through wall-hanging design, which saves space and is convenient to use, similar to air conditioning.
(5) Dual-purpose function: It can be used in the bathroom through professional waterproof design.
Listen to the working noise of the motor.
Buy a heater and listen for noise. The heater is driven by a motor, which inevitably produces noise. The best way to identify the noise is to turn the power to the maximum, and put your hand on the product body to feel the vibration amplitude of the product. The greater the amplitude, the greater the noise.
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Look at the cost performance
The cost performance of products is the biggest basis for purchasing, but the quality of products must be appraised on the premise of cost performance, and the price will be considered after quality appraisal. The price of electric heating wire heater is between 100~200 yuan, so it is more appropriate to choose around 99 yuan. The price of PTC heaters is generally between 150 yuan and 500 yuan, and the core price range of desktop heaters is below 150 yuan. Wall-mounted heaters below 200 yuan are more suitable, and other categories are priced according to their functions.
Purchase suggestion
(1) Suitable for heating people: people other than the elderly are relatively suitable, especially office workers.
(2) Suitable space: office, computer room and bedroom. Waterproof certified items can be used in the bathroom. Not suitable for bathing babies. The heating effect under the stage is obvious.
(3) Effective use area: integral heating, 1500W is applicable to 12~ 15 square meters; 2000W is suitable for 18~20 square meters; 2500W is suitable for a space of about 25 square meters.