What Size Whole-Home Generator Do You Need?
The right generator covers what matters when the power goes out, without paying for capacity you will never use.
Callison Electric Heating & Cooling sizes a standby generator to the loads you want to keep running, from essentials like the furnace, well pump, and refrigerator up to a whole-home system that powers everything. We assess your home and recommend the right size, then handle the electrical and permits. Call 540-294-3189.
Generator sizing comes down to one question: what do you want running when the power is out? The answer sets the size, and the size sets the price. We walk homeowners through it before quoting a generator installation.
Essentials vs. whole-home
A smaller unit can cover the essentials: heating, the well pump, the refrigerator, and some lights and outlets. A larger whole-home system runs everything, including central air. Most valley homes land somewhere in between, and we help you decide where.
What drives the size
The big loads are the ones that matter: central HVAC, the well pump, an electric range or water heater. Callison adds up what you want to run and matches a generator to it, so you are not paying for capacity you will never use or coming up short in an outage.
The electrical hookup
A standby generator ties into your electrical system through a transfer switch and, in many homes, works alongside the main panel. Because Callison is a licensed electrician, we handle the transfer switch, the panel work, and the permits as one project.
Automatic operation
A standby generator starts on its own within seconds of an outage and shuts off when power returns. You do not have to be home or do anything.
Related guides
Have a question about your system?
Want the right-sized generator for your home? We assess the loads and recommend the size. Call before noon and a crew can usually be there the same day.
Common questions
Real questions from Staunton and Augusta County, with straight answers.
Call 540-294-3189