Can You Use 1.5 mm2 Wires for Bathroom Heater Installation?

The bathroom heater, or yù bà, is an essential heating device for bathroom renovations, featuring functions such as heating, lighting, and ventilation. Can a 1.5 square millimeter wire be used for a bathroom heater? What are the tips for choosing a bathroom heater? Let's take a look!

Can a 1.5 square millimeter wire be used for a bathroom heater?

Yes, it can. Most bathroom heaters have a power output of around 2200 watts, and a 1.5 square millimeter wire has a safe current capacity of 23 amps. The current for a 2200 watt heater is about 10 amps, so it can handle the load. However, for safety reasons, it's better to use a 2.5 square millimeter wire for the main power supply and a 1.5 square millimeter wire for the control lines, as the main supply needs to handle the current from the lighting, fan, and heater bulbs.

The wiring for a bathroom heater typically consists of three lines: ground, neutral, and live wires, which are easily distinguishable by color. The ground wire is yellow and green striped and is mainly connected to the upper part of the socket. The neutral wire is blue and is located in the lower section, intended for connecting the five light bulbs. The live wire is red and is set at the lower right part of the socket to connect to the three switches.

Tips for choosing a bathroom heater

1. Consider the size of the bathroom

When buying a bathroom heater, first consider the size of your bathroom. If the bathroom is small and the moisture from daily showers cannot dissipate quickly, it is advisable to choose a heater with good ventilation. Conversely, if the bathroom is large, it is better to opt for a heater with strong heating capabilities to avoid feeling cold when bathing in winter.

2. Ensure safety and quality

Next, when purchasing a bathroom heater, you must pay attention to its safety. Since bathroom heaters are used in areas with high humidity, there’s a risk of short circuits. It’s recommended to choose materials that are heat-resistant and moisture-proof. Additionally, the switch for the heater should also be waterproof for safer operation.

3. Focus on eye protection

Lastly, bathroom heaters emit strong light during use, which can potentially harm the eyesight, especially of children. Consumers are advised to select frosted models when purchasing, as the frosted design can reduce the intensity of light and lessen the risk of eye injury.

In summary：this article provided information on whether a 1.5 square millimeter wire can be used for a bathroom heater and tips for selecting a bathroom heater. We hope this helps those in need. If you would like to learn more related knowledge in the future, feel free to follow our website.