Standby generator installation in Harrison

The parts of the system

Every standby system has the same core pieces. The generator is an engine and alternator in a weatherproof housing, set on a pad or base. The fuel supply is either a line from your natural gas meter or a propane tank. The automatic transfer switch sits by your panel and decides when the house runs on utility power and when it runs on the generator. A controller on the generator manages starting, the weekly self-test and alerts.

How the installation goes

A typical job follows the same order. First comes the site visit and load calculation, then the quote. Once you sign, the contractor files permits and orders equipment. On install days, the crew sets the pad, places the generator, runs the gas line and the wiring, and installs the transfer switch. The utility may need to be scheduled for any meter work. After inspection, the installer starts the unit, tests a transfer and shows you how the controller works.

• Site visit and written load calculation
• Permit filing with Harrison or your town
• Pad, generator, gas line and wiring
• Transfer switch at the panel
• Inspection, start-up and walkthrough

Placement in Harrison

Manufacturers require minimum distances from windows, doors, vents and other openings so exhaust cannot get inside. The town may have its own setback rules. On smaller downtown lots, those distances can rule out much of a side yard. On larger Purchase properties, the bigger concern is the cost of long gas and wire runs. Near the Sound, flood exposure may push the pad higher.

Natural gas or propane

Natural gas is convenient where it is available because it never needs a delivery. The installer and utility have to confirm that your meter can supply the generator along with your other gas appliances. Propane works anywhere and gives a slightly higher rating on many models, but the tank must be sized for how long you want to run. All fuel connections should be made by licensed professionals.

Reading a quote

Look for the generator brand, model and output on your fuel, the transfer switch type and amp rating, the pad, the fuel work, wiring, permit fees and inspection. Ask about the warranty and who registers it. Confirm the contractor's Westchester County home improvement license and insurance before you sign.

After the installation

Once the system is running, keep the paperwork together: the permit sign-off, the warranty registration and the installer's contact details. Set a reminder for the first service visit, and make sure everyone in the house knows what the controller lights mean and who to call if one turns red. See generator maintenance for what a yearly visit covers.

Questions homeowners ask