When choosing an exhaust fan for your home, there are many features you need to consider – what sound level, do I want an item like a humidity sensor, how much airflow do I need and so on. One of the first decisions is typically if you need a light or not. Sometimes it is an easy one such as if the fan will be used in a location where a light is not needed. This is typically the case when it is used as a continuous running fan to comply with building codes outline by ASHRAE 62.2. Other times however it is not as simple.
In rooms that either need a light or would benefit from additional lighting you basically have two options. Utilize a combination exhaust fan with light or install a secondary light source. While this might seem like a simple decision, and for certain installations it is, there are a few considerations to take into account.
Light Location
In many installations the exhaust fan is located to maximize the ventilation of the room. That can mean installing it in the shower enclosure or maybe directly over a toilet. In some cases, the best location for the lighting and the ventilation might be the same but in other installations it might not be. For instance, if the room needs more ventilation over a toilet but the lighting is needed more over the sink, then it might be better to utilize a fan without a light and install a separate light over the sink.
Cost Consideration
When choosing an exhaust fan, cost is probably a top factor. A fan light combination is going to cost more than an equivalent model that does not have a light. There are also some other costs associated with a fan light combination. If the fan and light will be wired together (meaning anytime the fan is on the light is also on), the wiring will be the same as a fan without a light. However, if you are going to install the unit so the light and exhaust fan operate separately, there are additional costs for the extra wiring and you will typically need an upgraded switch (at least a two function from a one function switch). Before anyone starts to yell – yes there are additional costs to installing a separate light in the room as well including the fixture as well as the wiring. What you need to take into consideration is how much more does the fan with light cost in relationship to how much more a light fixture will cost. In cases where there are already a bunch of other lights being installed, adding one more might not be that much. In cases (such as a powder room) that might only need the light from the exhaust fan, it might not be cost effective to have a separate light installed.
The Aesthetics
How a fan looks can play a big factor in the decision-making process. In general, a fan with a light will need to be a bit larger and have more of a presence in the room where a fan without a light will have a lower profile. In some cases, such as a decorative fan light combination, it is a design feature of the room. In other cases, it might not fit in with the aesthetics of the room.
The Lighting
Almost all exhaust fans with light are going to have some type of lens cover on them. This is to protect the lights from having water spray up onto them – especially if they are used in a shower stall. With the lighting needing to be protected it can diminish how much light the fixture is actually giving off and how the light is dispersed throughout the room. Recessed lighting is going to be more focused and “bright” in one area. Lighting with a lens cover is going to be more spread out but might not be as bright. Which one to choose is dependent on how you are looking to light the space.
Hopefully this article will help you when choosing an exhaust fan and if you want to utilize one with or without a light feature. For more information about Air King exhaust fans – with and without lighting, visit airkinglimiited.com.
