When selecting an instant tankless gas water heater, understanding technical specifications ensures reliability and safety. Let's continually break down its parameters as below:
1. Applied Water Pressure of an Instant Tankless Gas Water Heater
Low-pressure supplied homes (<0.02MPa) may choose water flow sensor models.
Regarding this requirement, one can refer to the introduction provided in these 2 articles.
https://www.gastek.cn/news-show-1086428.html
https://www.gastek.cn/news-show-1086674.html
2. Hot Water Capacity
e.g.10L/min at Δ25Kelvin, it indicates the volume of hot water (10L) produced by the instant tankless gas water heater when the water temperature rises by 25 degrees in one minute.
(This temperature rise standard can be using Δ30K for colder regions , for warmer regions using Δ20K).
For choosing an instant tankless gas water heater with an appropriate hot water output capacity to meet your hot water demand, please refer to the following article.
https://www.gastek.cn/news-show-1086426.html
3. Classification or Appliance Type
Gas combustion will produce NO and CO. In severe cases, it can be fatal. Therefore, it is necessary to know the type of your instant tankless gas water heater and install it in an appropriate location.
This item clearly specifies the installation location and requirements for it. For example,
For Type B11BS models: It’s required to be installed at the well-ventilated space and connect a proper flue pipe to exhaust the fumes. The diameter of the pipe needs to be taken into consideration.
For Type C12 models: It can be installed indoor because it connects dual-layer exhaust pipes.It can get fresh air from outdoor and exhaust the fumes to outdoor. The diameter for the coaxial pipe is usually 90mm/60mm,the length can be customized. Its material is stainless steel.
4. Rated Voltage & Power
Rated voltage indicates the power required by the unit.
For example, a flue type instant tankless gas water heater usually requires two pcs of LR20 D size batteries, total of 3V DC.
If it shows 220V 50Hz, it means the unit needs to be connected to 220V alternating current. 110V 60Hz indicates that it needs to be connected to 110V alternating current.
Always consult GASTEK for more information about instant tankless gas water heaters.