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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
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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
4.8 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
good for elderly
handy for morning exercise
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
Just what I need to get strength back.
Had some nerve damage to my arm and sholderI just need a light set of dumbells to get strength back. It fit the bill.The dumbell storage tree was a plus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
The stand DOES work! Amazing weight set! Perfect for beginners.
Style: 18lb, set of 6 with stand (Spring Bloom), Style: 18lb, set of 6 with stand (Spring Bloom)
When I got these for my beginner Pilates workouts, I absolutely loved everything about them except for the stand/rack (keep reading, the rack is actually awesome). The colors are so vibrant and beautiful and the material feels really good. The weights are 2lb, 3lb, and 4lb - this is perfect for a beginner like me who has never any used weights before. 4 lbs sounds light until you do your first 20 bicep curls ever - that’s when I realized they are perfect for my beginner level to build strength without hurting myself or flaring up my previous back and hip injuries. They have the hexagon type shape so they don’t roll away when you set them down. WELL I just couldn’t understand why the stand was pictured as an “A” shape and mine was “stuck” straight up and down so the weights had to be man handled to get them out of the rack. Or so I thought. Keep reading - I went back and I read through all the other reviews and didn’t see any other complaints about the stand, so I decided I had to take another look at mine. Well it turns out it was a user error. Lol. I wrestled with it trying to get a screwdriver under the handle to see if the screws needed to be loosened in order for it to slant in the “A” shape so the weights would come out more easily. I also tried to pull it really hard. Then I finally just grabbed one side of the stand and tried unscrew it to see if I could take it apart and rebuild it better. To my surprise - each side EASILY turned and clicked into place - with the weights FACING OUTWARD instead of inward. There’s plenty of space to get them out of the rack now! Watch the video I posted with this review to see how easy it is. Lol how embarrassing. But I know I can’t be the only one who thought they got a defective stand. Lol.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2024
★★★★★ 5
Perfect little set of weights
Style: Sage 5lb Pair
I really like these dumbbells for at-home workouts. The neoprene coating feels soft but secure, so I never worry about them slipping. They don’t clank around or chip like some metal weights I’ve owned in the past, and the flat edges keep them from rolling on the floor. I’ve used them for strength training, arm toning, and even light physical therapy exercises, and they’ve held up perfectly. The color is bright and makes it easy to find the right pair quickly. Great quality for the price, highly recommend!
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Reviewed in the United States on August 20, 2025
★★★★★ 5
Exactly what I was looking for
Style: 56LB, 10 pieces with rack
Exactly what I was looking for. The colors are super cute and the quality of the set is just as expected. It’s a perfect size and sits out in the open in my living room for convenience in a corner as if it belongs there. I just love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
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