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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Generac 7258 14kW Air-Cooled Whole Home Standby GeneratorFeatures Financing options offer you solutions that meet your budget. Electronic fuel & ignition control optimizes fuel use for a more cost efficient and lower emission back up power solution.* *On average versus Generac Guardian Series standby generators. Long, best in class service intervals mean you spend less time on maintenance and more time enjoying the comfort that comes with owning a standby generator. Remote diagnostics monitor your
Features
- Financing options offer you solutions that meet your budget.
- Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution.*
- *On average versus Generac Guardian Series standby generators.
- Long, best-in-class service intervals mean you spend less time on maintenance and more time enjoying the comfort that comes with owning a standby generator.
- Remote diagnostics monitor your generator’s performance and help detect issues before they become a problem, helping you save time & money on maintenance.
- Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link whether you're home or away.
- Mobile LinkTM keeps you connected and provides real-time updates and maintenance alerts.*
- *Requires Mobile Link TM premium subscription
- Oil level sensors monitor oil level to help ensure generator readiness.
- Improved cold start performance enables generator start-up in cold climates.
- Sloped roof and rear air intake reduce risk of snow and ice intrusion.
- Compatible with ecobee by Generac thermostats and Generac PWRcell battery systems to seamlessly monitor & control your home’s energy.
- Every Generac Standby Generator comes with a 5-year limited warranty, and over 65 years of innovation behind it.
- 24/7/365 Customer Support Team is ready all day, every day, from our headquarters in Wisconsin to answer any questions you might have.
- Generac generators and engines are engineered and assembled in the USA*.
What's in The Box
- 14kW Generac Air Cooled Standby Generator
Warranty
- 5 Year Limited Warranty
- 30 Day Satisfaction Gauranteed
Specifications
| SKU | GNC-7258 | |
| Model | 14 kW | |
| Rated maximum continuous power capacity (LP) | 14 kW* | |
| Rated maximum continuous power capacity (NG) | 14 kW* | |
| Rated voltage | 240 V | |
| Rated maximum continuous load current – 240 Volts (LP / NG) | 58 / 58 | |
| Total Harmonic Distortion | Less than 5% | |
| Main line circuit breaker | 60 amp | |
| Phase | 1 | |
| Number of rotor poles | 2 | |
| Rated AC frequency | 60 Hz | |
| Power factor | 1.0 | |
| Battery requirement (not included) | 12 volts, AGM Powersport Battery Group BTX20L 310CCA minimum | |
| Unit weight (lb / kg) | 391 / 177 | |
| Dimensions (L x W x H) in / cm | 46.4 x 26.3 x 30.7 / 117.9 x 66.8 x 77.9 | |
| Sound output in dB(A) at 23 ft (7 m) with generator operating at normal load | 65 | |
| Sound output in dB(A) at 23 ft (7 m) with generator in Quiet-Test™ low-speed exercise mode | 55 | |
| Exercise duration | Adjustable 5 - 20 min (5 min factory default) | |
| Engine type | GENERAC G-Force 800 Series | |
| Number of cylinders | 2 | |
| Displacement | 817 cc | |
| Cylinder block | Aluminum w/ cast iron sleeve | |
| Valve arrangement | Overhead valve | |
| Lifter type | Hydraulic | |
| Ignition system | Solid-state | |
| Governor system | Electronic | |
| Compression ratio | 9.5:1 | |
| Starter | 12 VDC | |
| Oil capacity including filter | Approx. 2.5 qt / 2.4 L | |
| Operating rpm | 3,600 | |
| Fuel consumption Natural Gas 1/2 Load | 189 ft³/hr (5.35 m³/hr) | |
| Fuel consumption Natural Gas Full Load | 243 ft³/hr (6.89 m³/hr) | |
| Fuel consumption Liquid Propane 1/2 Load | 63 ft³/hr (1.76 gal/hr) [6.66 L/hr] | |
| Fuel consumption Liquid Propane Full Load | 106 ft³/hr (2.92 gal/hr) [11.03 L/hr] | |
| Controls AUTO | Automatic start on utility failure; programmable exerciser | |
| Controls MANUAL | Start with starter control; unit stays on; transfers to load if utility fails | |
| Controls OFF | Stops unit; generator will not automatically start on utility failure; control and charger operate if utility power is available | |
| Controls SERVICE | Diagnostic mode to prevent remote commands and nuisance Mobile Link notifications during testing | |
| Ready to Run/Maintenance messages | Standard | |
| Engine Run Hours indication | Standard | |
| Programmable start delay | 2–1,500 seconds (dealer programmable) | |
| Utility nominal voltage setting | Adjustable 90–110% of 240V (default 100%) | |
| Utility Voltage Loss/Return to Utility adjustable (brownout setting) | Adjustable 75–80% dropout / 84–89% pickup | |
| Future Set Capable Exerciser/Exercise Set Error warning | Standard | |
| Run/Alarm/Maintenance logs | 50 events each | |
| Engine start sequence | Cyclic cranking | Engine cranks a maximum of five times at factory set intervals and durations |
| Starter lock-out | Starter cannot re-engage until 5 sec after engine has stopped | |
| Smart battery charger | Standard | |
| Charger Fault/Missing AC warning | Standard | |
| Low Battery/Battery Problem Protection and Battery Condition indication | Standard | |
| Automatic Voltage Regulation with Over and Under Voltage protection | Standard | |
| Under-Frequency/Overload/Stepper Overcurrent protection | Standard | |
| Safety Fused/Fuse Problem protection | Standard | |
| Automatic Low Oil Pressure/High Oil Temperature shutdown | Standard | |
| Overcrank/Overspeed (@ 72 Hz)/RPM Sense Loss shutdown | Standard | |
| High Engine Temperature shutdown | Standard | |
| Internal Fault/Incorrect Wiring protection | Standard | |
| Common external fault capability | Standard | |
| Automatically upgradable firmware via Cellular or Wi-Fi | Standard |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Size seems spot on shoe is beautiful
Size: 12, Color: White
These are beautiful shoes. A great cross between the ubiquitous flat as a board shoes like vans and tennis shoes. More comfortable than the super flat shoes and more formal than sneakers. Very soft leather. Not much arch support and I don't know if an insert would fit well. I am between an 11.5 and 12 in most brands (actual foot length from heel to tip of big toe is 11 and 1/8 inches). These fit perfectly in a 12 with room for comfort. An 11.5 probably would fit but snugly. I do not agree that they should be sized down at least based on my experience. If you can get these for under eighty dollars like I did they are well worth it. I'll be wearing them all summer.
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Reviewed in the United States on May 15, 2021
★★★★★ 4
Weightless, well made. But there are problems with size
Size: 8.5, Color: White
I bought it for a teenager, for size 81/2. This, according to the dimensions on the page, is 25.9 centimeters. They came, the size was indicated correctly, but they are large for the child. Very large. They fit me, size 10. The child is disappointed.
Well made, look neat on the foot. Almost weightless
But I can't give the maximum rating. I wish the seller to deal with the size grid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
★★★★★ 5
Amazing Shoe!
Size: 9 Wide, Color: Blazer Blue Hand Stain
Amazing shoe!! Comfortable to wear for long periods of time! Highly recommend!! 👍🏾
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
★★★★★ 5
Calzado elegante para oficina de excelente calidad
Producto de excelente calidad. La entrega fue rápida y el empaque llegó en perfectas condiciones. Cumple completamente con lo descrito en la publicación.
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Reviewed in the United States on April 28, 2026
★★★★★ 3
Not A Walking Shoe
Size: 9.5, Color: Black/British Tan
In the photo online this shoe looks like it will be very comfortable. Kind of a classy Coach's Shoe. Also in the photo the heel portion of the sole looks thick and supportive. I bought them thinking they would be my go-to travel shoe. Wrong.
This is not a comfortable shoe for extended wear. Short durations, OK. The main problem is that the sole is very thin and flexible in all directions. There is no, as in zero arch support, plus that thin heel means that you tend to rock back on your heels and it feels like you're pounding the pavement.
I've worn once and I'm very disappointed. They look great, definitely high quality materials, but using them for the intended purpose of travel.... fah get about it.
If you're looking for a good looking shoe to wear around the gym and you don't intend to use the treadmill, or elliptical, then this is the shoe you want.
They would definitely be returned if I hadn't already worn them outside.
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Reviewed in the United States on August 11, 2023
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