Hardwired VS Battery Smoke Alarms 
You need reliable smoke detectors in your home that conform to building and fire codes. If you’re building a house or remodeling an older one, the choice of smoke detector style is one you need to figure out quickly. Some older homes may still need to use a battery-operated smoke detector.
However, many others need to use hardwired alarms that connect to the same wiring that powers your home’s outlets and lights. If you’re not sure about making the switch to hardwired, take a look at some of the benefits.
Hardwired Versus Battery Smoke Alarms
Smoke detectors for homes come in two main types. One is hardwired, in which the detector’s wiring is connected to the home’s electrical wiring. The detector receives power from the home, although it has a battery pack that will work if there’s a power outage.
The other type is fully battery-operated, and this type is divided into two categories. One is the classic replaceable version, where you have a 9-volt battery stuck in the back of the detector. You have to change those batteries yearly. The other category is the newer version with a nonreplaceable pack that lasts for 10 years. You replace those batteries when you replace the entire detector.
Why Would You Want the Alarm Connected to Wiring?
Hardwired smoke detectors have some vital safety features that non-wired alarms don’t. The wired versions are harder to tamper with, meaning people can’t jsut remove the battery randomly.
If you’re wondering why anyone would do that, that brings us to another reason why you’d want wired detectors: They’re less likely to go off for false alarms. Have you ever had to frantically bat a detector off the wall and scoop out the battery as it beeped loudly while you were cooking?
Wired alarms don’t do that as much. You’re never going to be 100% guaranteed to never have a false alarm again, but the wired detectors are less likely to confuse cooking with an actual problem.
Which One Is More Cost-Efficient?
Cost is no longer much of a deciding factor as far as the detectors themselves go. Models that use only sealed packs of batteries are good for 10 years, meaning you won’t have to spend more money on replacement batteries every year. However, since you’ll need an electrician to install a hardwired detector, you’ll have to keep that cost in mind. But even that is relatively reasonable if the home doesn’t need retrofitting to install new wiring.
How Do You Install Both Types?
Non-wired detectors are the easiest to install; these have a plate that you attach to the wall or ceiling with screws. The detector portion fits into brackets on the plate.
Hardwired detectors, however, have to be connected to the home’s wiring. That requires the services of an electrician. Please don’t attempt to install the hardwired detector yourself, even if you’ve got a lot of DIY experience.
This is one project where you really do need to ensure the installation and setup are done according to code. If the spot where you want the detector doesn’t have the right type of wiring, an electrician can run the correct wiring to the spot.
Is One More Reliable Than the Other?
Wired detectors tend to be much more reliable than non-wired. The wired detectors receive a steady supply of power that doesn’t fade over time, like batteries do. If there’s a power outage, then the detector switches to using its included batteries.
With a non-wired detector, you risk having the batteries fail prematurely. In some households, especially ones where the detector seems super-sensitive to cooking and stove use, you may even find that the batteries have been removed, and no one remembered to put them back. When used properly and tested regularly, non-wired detectors can work very well. But they still lack that stable power supply and are dependent on your efforts to keep it working.
Do Wired Smoke Detectors Go Bad?
Wired smoke detectors do eventually fail. These tend to last about 10 years, and good models have indicator chirps similar to the dead-battery chirps you hear from non-wired detectors. Once you start hearing those, it’s time to call an electrician to replace the smoke detector.
If it’s been about 10 years and you haven’t heard any chirping, you may want to have an electrician examine the detector anyway. The detector and sealed battery could still be in good shape, but the lack of a chirp can also indicate a broken detector.
Do Building Codes Require a Specific Type?
Some building codes are moving toward requiring wired smoke detectors in new homes. Many are moving toward requiring either a wired detector or a removable one that still uses a 10-year sealed battery, instead of the classic 9-volt batteries that you change every year.
This is the case in Florida, where the building code for structures built after September 30, 1983, need to use a detector that’s connected to the home’s electrical system. Some structures that have undergone remodeling may use a removable detector with a 10-year nonreplaceable battery if retrofitting the structure with new wiring isn’t possible.
If you’re remodeling, speak with an electrician first to ensure you understand the code and whether or not your home qualifies for that exception. Don’t take the risk of misinterpreting the code.
Don’t Delay Installing Smoke Detectors
When you need to install new smoke detectors, contact Mister Sparky. We can easily install a wired smoke detector wherever one is required. You deserve to be safe in your own home. Call us now for an appointment!
You need reliable smoke detectors in your home that conform to building and fire codes. If you’re building a house or remodeling an older one, the choice of smoke detector style is one you need to figure out quickly. Some older homes may still need to use a battery-operated smoke detector.
However, many others need to use hardwired alarms that connect to the same wiring that powers your home’s outlets and lights. If you’re not sure about making the switch to hardwired, take a look at some of the benefits.
