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John Betlem Heating & Cooling Inc - Electrical
4.7(
157
)
Fixed Generator - Install

Serving Bergen, NY and surrounding areas

Approved (Corporate)

In business since 1941

Free estimates

Emergency services offered

John Betlem Heating & Cooling is a 3rd generation company founded in 1941. They provide Residential HVAC, Electrical and Insulation Services to Rochester, NY and the surrounding towns. John?s slogan that still holds true today is to do ?whatever it takes? to satisfy customers.\n\nJohn Betlem is a premier family operated solutions provider, passionately committed to the health, safety, and comfort for all they serve.

41 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Loos Electric, Inc.
Loos Electric, Inc.
4.9(
16
)
Portable Generator - Install

Serving Bergen, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"They were great I like them they cleaned up after themselves I will use them again and I will call him again to do more jobs even though we use them for installing a fan as well he was great thank you for the service."
Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Schedel Electric
Schedel Electric
5.0(
10
)
Fixed Generator - InstallPortable Generator - Install

Serving Bergen, NY and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Project was replacement of breaker box and electrical riser (the wires on the side of the house from the power company) whose insulation deteriorated and caused water leakage into breaker box during heavy rains. Got three proposals and went with Schedel. Very satisfied. Their honesty, flexibility, and punctuality were commendable. Unlike other contractors, they don't listen to the radio while working. Their quote included relabeling the circuit breakers, a plus since other contractors charge extra. Finally, their quote was significantly lower than the other two contractors. And the payment terms were flexible, to say the least."
Response time5 hrs
Response rate98%
Recommended by100%of homeowners
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Generator Install questions, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

The Bergen, NY homeowners’ guide to generator installs

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