A standby generator is a serious purchase, and the decisions you make up front (size, fuel, which circuits) determine whether it is worth it. This guide walks a Kansas City homeowner through every choice in order. For the deep dives, each section links to a focused article.
Generators are rated in kilowatts, and the right number depends on which circuits you want running during an outage, not how big your house is. Two same-size homes can need very different units. In Kansas City, two loads drive most decisions: summer air conditioning, which draws a heavy surge when the compressor starts, and the sump pump, because outages during heavy rain are exactly when a basement floods. Get the full method in what size generator you need.
If your home has natural gas, the generator ties straight into the line and never needs refueling. Homes without gas (common on the rural edges of the metro) run the same unit on a propane tank. The choice usually comes down to what is already at your address. See natural gas vs. propane.
| Approach | Best for | Trade-off |
|---|---|---|
| Whole-house | Outages are a non-event; everything runs | Larger, costlier unit |
| Essential circuits + smart switch | Furnace, fridge, sump, well, key outlets, often one AC | Smaller unit; sheds low-priority loads |
The automatic transfer switch is what makes a standby generator automatic: it senses the outage, starts the unit, and switches your home over within seconds, then switches back when utility power returns. It must be installed by a licensed electrician to code. A smart/managed switch is what lets a smaller generator cover the loads you care about.
Eastern Jackson County and the tree-lined Johnson County suburbs lose power to summer storm lines and winter ice that drop limbs on overhead lines. Repairs can stretch a day or more. If you rely on a sump pump, a well, or medical equipment, put those on the must-run list.
A standby unit only earns its keep if it starts on the day you need it. It self-exercises weekly, and it needs a professional service about once a year (oil, filter, battery, load test). The battery is the most common failure point. See generator maintenance.
The short version: size to your priority circuits, match fuel to what is already at your home, insist on a code transfer switch, put the sump and well on the must-run list, and service it yearly. Then an outage stops being a problem.
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