Should You Install a Backflow Valve for a Warm Air Bath Heater?

As we have entered October, the weather is getting colder, and many people feel a bit chilly while taking showers. Therefore, some have started to turn on their bathroom heaters, specifically the warm air type. Should a check valve be installed?

Should You Install a Backflow Valve for a Warm Air Bath Heater?

1. A warm air bathroom heater can indeed be fitted with a check valve. This type of heater is a new kind of bathroom heater with an intake and outlet structure. It uses a motor to circulate air, helping to warm up the room.

2. Installing a check valve will serve a purpose by preventing unpleasant odors from backflowing into the bathroom. This is similar to having a backflow valve in the kitchen to prevent the return of cooking fumes. Adding a check valve in the heater helps ensure that the air in the room remains fresh.

3. If the bathroom’s public exhaust duct isn’t installed, the heater can have a built-in check valve, or one can be added later. This setup will allow for better air circulation.

Differences Between Warm Air Heaters and Lamp Heaters

1. The working principles differ: warm air heaters warm up the bathroom by circulating air, converting cold air into warm air. In contrast, lamp heaters generate heat through bulbs to raise the temperature in the bathroom.

2. They are suited for different environments. A warm air heater is best for larger bathrooms but should be installed away from direct water exposure and not aimed directly at oneself, as prolonged direct air may affect health. Lamp heaters, on the other hand, are more suited for smaller bathrooms because they can lead to uneven heating and should preferably be installed in the center of the room.

3. The heating speed also varies. Compared to lamp heaters, warm air heaters warm up the space more quickly, while lamp heaters tend to do so gradually.

In summary：if you have chosen a warm air bathroom heater, it’s advisable to install a check valve. This will effectively prevent outdoor odors from entering the room, ensuring the indoor air remains fresh. Additionally, understanding the differences between warm air and lamp heaters can help in making an informed purchase.