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Avatar for Anderson Water & Power
Anderson Water & Power
4.4(
618
)

Serving Andover, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"We really like the professional job done by Paul, James III and Nate, they answered all our questions and explained everything to our understanding. They are no doubt well-trained in their field and dedicated to the reputation of the company. Kudos to our saleperson Tom, who also happens to be the president. We had on-location visits from 3 companies to have a whole-house generator installed and no doubt picked the best company."
Free Water Test!
Cummins
Cummins Install
Cummins
Transfer switch Cummins

+62

Response time2 days
190 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Hurricane Home Solutions, Inc.
Hurricane Home Solutions, Inc.
4.3(
12
)

Serving Andover, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"They were fantastic! They were polite, fast, organized, good clean up, and explained everything. The quality of the generator looks durable, and could last longer. They are the only company who told me that the generator needed to be serviced for every 2 years instead of every year. They also installed it on a stoned pad instead of a concrete which saved me a lot of money. The piping inside of the house was a flexible steel coil. They also do service calls."
Completed installation of a Cummins Home generator.
We do installations all year round, rain, snow or whatever else.
A member of the Hurricane Team wrapping some work on a generator Installation.
Additional Photos
Additional Photos

+4

Response time9 hrs
Response rate100%
27 neighbors recently requested a quote
Avatar for KWD Electric Inc
KWD Electric Inc
4.5(
46
)

Serving Andover, NY and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Pleasure to work with on recessed lighting install. Ken was responsive to questions and time changes via email/phone. We removed the old lighting, did some of the recessed lighting layout, and obtained the materials (he reviewed to make sure it was OK). His installation and electrical work was handled professionally and on schedule. Any adjustments were reviewed with me as a courtesy. We thought the price was fair for the work done. Nice job."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+15

Recommended by97%of homeowners
Avatar for Anderson Water Systems Inc
Anderson Water Systems Inc
3.1(
30
)

Serving Andover, NY and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"Were very happy with the installation because immediately when the power goes out. The generator turns on and the problem is solved. It was the lowest bid we had so we took it and actually were very happy with the company's efforts. We bought the generator and had it installed for a great price. They offer a great yearly service plan too."
Recommended by61%of homeowners
TNC Electric
New to Angi

Serving Andover, NY and surrounding areas

In business since 2009

Free estimates

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

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Generator Install questions, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Andover, NY homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.