Know These 6 Things Before Buying a Home Generator

Power outages can disrupt your life in a heartbeat. Whether it’s a storm, a grid failure, or an unexpected blackout, losing electricity means no lights, no heating or cooling, spoiled food, and interrupted work. That’s where a home generator steps in – not as a luxury, but as a lifeline. But before you rush into buying one, understand this – not all generators are the same, and the wrong choice can leave you with regrets and unexpected expenses. From sizing it properly to understanding fuel sources, installation requirements, and maintenance, there’s more to this investment than meets the eye.

Budget for Maintenance and Long-Term Costs

This includes oil changes, filter replacements, fuel stabilizer treatments, battery checks, and periodic test runs. Many standby generators have maintenance schedules built in and will alert you when service is due, but you’ll still need a qualified technician or service plan. Ignoring maintenance means your generator could fail right when you need it most. When planning your budget, don’t forget to account for backup power costs, which include not just the initial purchase price but also ongoing maintenance, fuel, and possible repairs over time. Replacement parts and warranty extensions are additional expenses worth thinking about.

Know the Power You Need

You need to calculate the total wattage of the appliances and systems you plan to run during an outage. This includes your refrigerator, HVAC system, lights, sump pump, internet router, medical equipment, and anything else you can’t live without for a few days. Add up the running wattage of each item and factor in the surge wattage – what appliances need to start up. This gives you a more accurate picture of what size generator you’ll need. Buying a generator that’s too small will trip the system or leave some of your essentials offline. Go too big, and you’ll be wasting fuel and money on something you don’t need. 

Understand the Different Generator Types

Portable generators are cheaper and can be stored away when not in use. They require manual setup, usually need to be connected with extension cords or a transfer switch, and must be refueled regularly. Standby generators are installed permanently, kick on automatically when the power goes out, and can run on natural gas or propane. They’re far more convenient but also more expensive and require professional installation. You need to think about how often you expect outages, how long they last, and how hands-off you want the process to be. If you’re just looking for temporary relief during a short outage, a portable model may be enough. 

Consider the Fuel Source and Storage

Portable models usually rely on gasoline or diesel, while standby generators typically use propane or natural gas. Each has its pros and cons. Gasoline is easy to find, but it degrades quickly in storage and can be dangerous if not handled properly. Propane burns cleaner and stores indefinitely, but you need to have a tank on hand and may pay more per gallon. Natural gas is ideal for standby models because it’s piped directly into your home, meaning you won’t need to refuel during an extended outage. Before choosing, think about fuel availability in your area, how long outages typically last, and how much fuel you’re willing to store or manage.

Factor in Installation and Placement Rules

There are zoning laws, building codes, and manufacturer requirements that dictate how far the unit must be from doors, windows, and property lines. You’ll also need a transfer switch to safely connect the generator to your home’s electrical system. This switch automatically senses power loss and switches your home to generator power – then switches it back when the grid returns. Installation costs can be significant, often adding thousands to the total price. Portable generators also need to be used outdoors, away from windows and doors, to prevent deadly carbon monoxide poisoning. 

Don’t Overlook Noise and Emissions

Portable units are usually louder than standby models, which often come with sound-reducing enclosures. Check the decibel ratings and think about how much noise you – and your neighbors – can tolerate. Noise ordinances might limit when or how long a generator can run. On top of that, emissions matter too. Gasoline and diesel generators produce more pollutants, while propane and natural gas burn cleaner. Some areas have strict air quality regulations that restrict what kind of generator you can install. If you live in a place with environmental or community restrictions, research them before buying. 

A generator is one of those purchases where doing your homework pays off – big time. Power outages don’t come with a warning, and when the lights go out, you’ll either be ready or you won’t. Take the time to figure out your power needs, understand the pros and cons of different generator types, evaluate your fuel options, and get a grip on installation logistics and long-term upkeep. Don’t forget to think about noise and environmental impact, too. This isn’t just about having electricity – it’s about protecting your comfort, safety, and peace of mind when the grid fails.