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Product Description
Amazon.com Product Description
Experience fast-acting, automatic protection from power loss with the Generac Guardian Series 5870 8,000 / 7,000 Watt Air-Cooled Propane/Natural Gas Powered Automatic Standby Generator with Steel Enclosure. Ideal for home use, this generator powers up automatically and within seconds of a power outage without the need for any manual startup. Without any buttons to push or cords to plug in, an automatic standby generator starts up by itself even when you're away! Featuring easy installation, it comes pre-wired and packaged with virtually everything necessary to connect to your home's electrical system and existing LP or natural gas fuel supply, so you can be protected the next time the lights go out.
Hands-Free Automatic Operation
When the power goes out, this generator eliminates the trouble of dealing with a fuse box in a dark basement or going outside in a storm to start a portable generator. After all LP or natural gas and electrical connections are completed, the Generac 5870 is ready to run 24/7 and requires absolutely no manual operation, no fueling, and no extension cords. The generator responds within seconds of power outages, so inconveniences like heat or air conditioning loss and burst pipes or spoiled food are quickly avoided. Find the Generac Generator That's Right for Your Needs
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 A 410cc Generac OHVI® Engine delivers reliable performance with its long-life design. View larger . |
 Standby generators power up automatically within seconds of a power outage to keep your family safe and comfortable. View larger . |
When the power goes out, this generator eliminates the trouble of dealing with a fuse box in a dark basement or going outside in a storm to start a portable generator. After all LP or natural gas and electrical connections are completed, the Generac 5870 is ready to run 24/7 and requires absolutely no manual operation, no fueling, and no extension cords. The generator responds within seconds of power outages, so inconveniences like heat or air conditioning loss and burst pipes or spoiled food are quickly avoided.
Initial setup is easy. The generator arrives pre-wired and equipped with the necessary installation gear: an 8-circuit transfer switch (NEMA 1, indoor-rated only), pre-wired conduits, an outdoor connection box, a flexible fuel line pigtail, and a composite mounting pad. (Additional items and tools may be needed to complete the installation to meet local codes. Consult a licensed professional for further details.)
The unit can be programmed to perform a weekly exercise at the time of your choice, so it will be ready for continuous and reliable operation on a moment's notice.
Superior Technology for Secure Output, Quiet Operation, and Durability
Thanks to Generac's exclusive True Power Technology, this generator provides clean, continuous power, so sensitive electronics and microchip appliances like laptops and HVAC equipment can be operated without the worry that unexpected power surges bring. The ultra-quiet design means that noise levels during self-tests are 1/3 quieter than portable generators, so your daily routine is unaffected.
The generator's corrosion-resistant, galvanized steel enclosure is protected by Generac's proprietary RhinoCoat system--a unique process that binds the paint to the metal surface for a long-lasting, durable finish. This allows the generator to sit outdoors and withstand harsh weather conditions without developing an unsightly appearance.
Like all Generac generators, this model is UL (Underwriters Laboratories) listed for safety.
Rugged, Worry-Free Design
The generator features the 410cc Generac OHVI® Engine, an exclusive air-cooled generator engine with a high-performance design that can accommodate large electrical loads. The engine optimizes power to respond swiftly to changing conditions. To add to your peace of mind, the engine requires routine maintenance only once every two years, or after 200 hours of use.
This Generac generator meets CARB requirements. It requires a Group 26R 12-volt minimum 350 CCA battery (sold separately).
What's in the Box
Generac Guardian Series 5870 8,000 / 7,000 Watt (LP/NG) Automatic Standby Steel Generator (48- by 24- by 29-inches); 100 Amp NEMA 1 automatic transfer switch with 8-circuit load center; 30-foot, 5-foot, and 2-foot pre-wired conduits; outdoor connection box; 1-foot flexible fuel line pigtail; composite mounting pad; installation guide and owner's manual.
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| Model # | Rated Power (Watts) | Enclosure Type | Automatic Transfer Switch | CARB Compliant |
|---|---|---|---|---|---|
| 5870 | 8,000 | Steel | 100 Amp NEMA 1 8 circuit load center | Yes | |
| 5871 | 10,000 | Steel | 100 Amp NEMA 1 10 circuit load center | Yes | |
| 5872 | 14,000 | Steel | 100 Amp NEMA 1 14 circuit load center | Yes | |
| 5873 | 17,000 | Steel | 100 Amp NEMA 1 16 circuit load center | Yes | |
| 5874 | 17,000 | Aluminum | 100 Amp NEMA 1 16 circuit load center | Yes | |
| 5875 | 20,000 | Aluminum | 200 Amp Nexus Smart Switch NEMA 3R service rated | Yes | |
| 5887 | 20,000 | Aluminum | Not Included | Yes | |
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| Model # | Rated Power (Watts) | Enclosure Type | Transfer Switch | CARB Compliant |
| QT02516ANSX | 25,000 | Steel | Not included | Yes | |
| QT03016ANSX | 30,000 | Steel | Not included | Yes | |
| QT04524ANSX | 45,000 | Steel | Not included | No | |
| QT042524ANSC | 45,000 | Steel | Not included | Yes | |
| Model # | Rated Power (Watts) | Enclosure Type | Transfer Switch | CARB Compliant |
| QT02224ANAX | 22,000 | Aluminum | Not included | Yes | |
| QT02724ANAX | 27,000 | Aluminum | Not included | Yes | |
| QT03624ANAX | 36,000 | Aluminum | Not included | No | |
| QT04842ANAX | 48,000 | Aluminum | Not included | No | |
Product Description
Generac provides peace of mind for homeowners with 24/7 automatic power protection from blackouts whether you are home or away. Back up preselected circuits or the whole house within seconds of a power outage. Permanently installed.
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Most Helpful Customer Reviews
89 of 95 people found the following review helpful:
5.0 out of 5 stars
Generac Guardian 5870,
By
Amazon Verified Purchase(What's this?)
This review is from: Generac Guardian Series 5870 8,000 Watt Air-Cooled Liquid Propane/Natural Gas Powered Standby Generator With Transfer Switch (CARB Compliant) (Lawn & Patio)
I purchased the Generac 5870 Generator in July 2010. It arrived by CEVA freight and the driver dropped it off 10 feet from the site that I prepared for it. Upon inspection it was in great condition except for a small ding at the base of the unit; no problem just cosmetic. I decided to keep it versus send it back and wait for a new one. It came with a 5 foot electrical tail protruding from the generator and two tails protruding from the transfer switch (a two foot tail that attaches to your main distribution panel and a 30 foot tail that connects to the generator's 5 foot tail via a connection box). Instructions are well written and easy to follow. I am a retired IT Executive with some knowledge about electrical connections so I did the electrical hookup myself. The gas connection I sub-contracted to a local propane service agent. I am glad I did as the gas connection line depends on the distance from the propane tank to the generator and the number of appliances and associated BTU's that are hanging off the gas line that you want to connect to. Because I was on the cusp of exceeding the exisitng gas line capacity, I decided to run a separate one inch gas line to where the propane tank line enters the house. Since an additional regulator and line was required, the existing piping and regulator had to be re-piped and teed. Switching the generator from natural gas to propane is very easy. Just place the T-handle into the slot located on the air breather housing inside the generator, pull it out (spring tension), and turn clockwise 90 degrees. The orfice is now good to go for propane. The gas contractor charged $98 an hour plus parts. It took him 4 hours (@400). I haven't receive the bill yet for the parts. Also, the amount, length, gender, and threads of nipples and pipe connectors required are numerous when running a separate line. While plumbing the generator is less complex than the electrical, I recommend having the gas connection done by a professional as they have the tools, knowledge, parts, and meters, to ensure a seemless gas connection to the unit.
Prior to activating the generator, you will need to logon to Generac's site to obtain an activtion code. I did this but upon entering the code via the generator's controller, it wouldn't accept it. The instructions state that if this happens to call them. I did so, (9:30 PM on a Monday night), and a generac representaive gave me a new code. The test was successful with out any issue. One other point. The 5870 transfer switch/subpanel comes pre-wired with associated breakers; two 240 volts (one 20 amps, the other 30 amps), six 120 volts (three 15 amps, three 20 amps). There are also 240 volt/70 amp wires that run from the transfer/sub-panel switch to your main distribution panel. Generac doesn't supply the 70 amp breaker required to connect these wires into your main distribution panel;($33 at Home Depot.). Also, you will need to buy the battery that starts the generator (@$70 at Walmart). Since the pre-wired/breakers didn't exactly match the circuits I wanted to back up, I needed to swap out the wire and breaker in the transer/sub-panel box from 30 amp/10 wire to 40 amp 8 wire to match my AC circuit in the main distribution panel. Also, I had to swap out the wire and breaker for one of the 20 amp/12 wire circuits in the transfer/sub-panel box to 15 amp/14 wire. All in all, the install went great. I now have my critical circuits backed-up for less than $3000.
52 of 60 people found the following review helpful:
1.0 out of 5 stars
Failed during the first power outage,
By
This review is from: Generac Guardian Series 5870 8,000 Watt Air-Cooled Liquid Propane/Natural Gas Powered Standby Generator With Transfer Switch (CARB Compliant) (Lawn & Patio)
I had a Generac Guardian 8kw generator installed at my home about 15 months ago. Three weeks ago we experienced a power outage, our first since the unit was installed. The generator failed to provide any backup power. In fact, it did nothing at all. After checking the unit, the person who installed it told me the failure was due to an "over speed" problem. He explained how I could do periodic checks on the generator's status. I had a simple question about his instructions that I posted on Generac's web site. This evening I received a reply from Generac stating that my question had been "rejected". No explanation as to why. So much for the company's customer support.
69 of 81 people found the following review helpful:
1.0 out of 5 stars
False confidence,
By
This review is from: Generac Guardian Series 5870 8,000 Watt Air-Cooled Liquid Propane/Natural Gas Powered Standby Generator With Transfer Switch (CARB Compliant) (Lawn & Patio)
I have the earlier model but I think the same warning applies. I have this generator hooked to vital circuits in my house. During a recent power outage, I noted some of my appliances making humming noises. I did not think a lot about it but found out afterwords that my DSL modum, my security system transformer and my electronic panels and a transformer to my HVAC system were fried. Coincidentally,I had a generac repairman coming out the next day to do regular maintenance. He found that the voltage regulator on the generac was out. Repairs for all of the electrical damage and to the generator are over $2000 dollars so far. Everyone considering a whole house generator must not rely on the voltage regulator on their unit to protect their home from generator surges. So, count on another 120-180 dollars from a good surge protector to protect your house from your faulty generator! This was advice not mentioned in the install book nor by my original electrician. Generac was notified and offered no help other than to say they have had no recall on the voltage regulators........live and learn!
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