How to buy gas water heaters? Gas source for gas water heaters

In the cold winter, if there is no hot water in the bath, what kind of experience would it be? At this time, the gas water heater became the appliance of great concern in the bathroom. In order to prevent the above-mentioned bath washing half and no hot water, we must pay close attention to the purchase of gas water heaters.

How to buy gas water heaters?

First of all, how can gas water heaters be selected? Users can directly understand the performance of water heaters from the model. The national regulations shall indicate the gas species (T-natural gas; Y-liquefied petroleum; R-artificial gas); the air supply and exhaust mode (D-flue type; G-balance type; Q-forced type); hot water yield (The temperature rises by 25% per minute). For example, JSTD8 is a domestic 8-liter flue gas natural gas fast water heater. Different gas types cannot be mixed.

Secondly, how can the gas water heater be selected? The water output per minute marked on the model is for a temperature rise of 25 ° C, for example, the water output from 20 ° C to 45 ° C. The national standard stipulates that the actual water output is not less than 90% of the specified value, that is, the water output of the 8-liter water heater is more than 7.2 liters. Simple check at the time of purchase: After the water heater is running normally, it is better to feel the water hot and the water is large. The state also stipulates that the maximum temperature of the water heater rises to 50 °C. It is generally best not to buy gas water heaters with a water temperature exceeding 70°. Because higher temperatures tend to foul water pipes and shorten the life of water heaters.

Finally, how can gas water heaters be selected? When the water heater is working, the gas firepower is very fierce. It is absolutely not allowed to dry without water. Generally, the water heater is started by opening the water valve. In recent years, various manufacturers have introduced water heaters with low water pressure (0.1 kg/cm 2 ). It is best to buy the brand itself, not the OEM processing brand, so that the quality is guaranteed. When using low water pressure, it is necessary to pay attention to reduce the gas flow rate, otherwise the water will be less hot, and it will easily cause high temperature hot water to burn the human body, and it will easily generate scale and affect the life of the water heater. The forest is a heat-protected water heater that automatically stops when the water temperature exceeds a certain temperature. So be sure to buy a constant temperature water heater.

Gas source and capacity of gas water heaters

For gas water heaters, what is its gas source? At present, the gas water heaters on the market generally have a water output of 6-12 liters, that is, 6-12 liters of water with an output temperature of 25 degrees Celsius per minute. For example, if the tap water temperature is 20 degrees, it can output 6-10 liters of water per minute of 20+25=45 (degrees Celsius). Generally speaking, the amount of water is larger and it will be more comfortable to wash. Therefore, it is recommended to choose a water heater with a water output of 8 liters or more. If you have two bathrooms in your home or you need a bathtub, you can choose a large number of water heaters.

Under normal circumstances, what is the capacity of gas water heaters? For the average household, the climate in the south is warmer, and the heat load of the water heater (similar power) is lower. From an economic point of view, it is better to choose a water heater below 8 liters. Achieve comfortable bathing requirements.

In the north, the average tap water temperature is low, especially in the winter shower. The heat load (similar power) of the water heater is required to meet the requirements of comfortable bathing. What are the specific regulations? The northern family recommends 8 liters~ 10 liters is more suitable. However, if the user has a large home area and has multiple shower rooms and only wants to install a water heater for hot water, it is recommended to select a gas water heater with more than 13 liters and a multi-point constant temperature water supply function.

Since the past time, the gas water heater has always been heard. In addition to the improper use of gas water heaters, the quality of gas water heaters has become the first factor. This means that when we purchase gas water heaters, we must pay attention to the selection details related to gas water heaters.