Generac recommends a concrete slab size of 54” x 31” x 4”.
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Generac Guardian Series Air-Cooled Home Standby Generator — 20 kW (LP)/18 kW (NG), 200 Amp Transfer Switch, Model# 7039

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- True Power™ technology delivers superior power quality with less than 5% total harmonic distortion
- OHVI™ engine requires less maintenance
- Quiet-Test™ self-test mode is quieter and uses less fuel
- Tough, durable all-weather, corrosion-resistant aluminum enclosure
- Pre-attached composite mounting pad
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Standby generator
- (1) 200 Amp transfer switch
- (1) Pre-attached composite mounting pad
Features + Benefits
- True Power™ technology delivers superior power quality with less than 5% total harmonic distortion
- OHVI™ engine requires less maintenance
- Quiet-Test™ self-test mode is quieter and uses less fuel
- Tough, durable all-weather, corrosion-resistant aluminum enclosure
- Pre-attached composite mounting pad
- Smart, user-friendly Generac Evolution™ Controller features a dual-line multilingual LCD display
- Includes Mobile Link™ remote monitoring for checking the status of your generator from anywhere in the world using your smartphone, tablet or PC for free
- 24/7/365 Customer Support Team
Key Specs
| Attribute | Specification |
|---|---|
item# | 54314 |
Brand | Generac |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 492.0 LB |
Voltage | 120/240 |
Rated Kilowatts LP | 20 |
Surge Kilowatts LP | 20 |
Rated Kilowatts NG | 18 |
Surge Kilowatts NG | 18 |
Max. Amps | 83.3 |
Fuel Type | Multi-Fuel |
| Attribute | Specification |
|---|---|
Engine Brand | Generac |
Engine Model | OHVI |
Engine Displacement | 999 cc |
Noise Level | 66 dB |
Enclosure Material | Aluminum |
Battery Required | Yes |
Battery Included | No |
Transfer Switch Amps | 200 |
Auto Shutdown | Yes |
Engine Cooling | Air |
Dimensions L x W x H (in.) | 48 x 25 x 29 |
Reviews
Questions & Answers
Questions
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· 6 years ago
Will the genrac mount to a 48” long x 25” width concrete slab?
1 answer-
ProductExpert38· 6 years ago
Helpful?
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· 6 years ago
WHAT SIZE GAS SUPPLY LINE DOES THIS UNIT NEED
1 answer-
ProductExpert30· 6 years ago
The size of the gas supply will depend on the length of pipe that is needed for your installation. Based on schedule 40 black pipe, a 1" inner diameter pipe line can be used for up to 20', a 1.25" inner diameter pipe line can be used for up to 130', a 1.5" inner diameter pipe line can be used for up to 305', and a 2" inner diameter pipe line can be used for up to 945' for a 5"-7" water column. A 1" inner diameter pipe line can be used for up to 10', a 1.25" inner diameter pipe line can be used for up to 60', and a 1.5" inner diameter pipe line can be used for up to 125' for a 3.5"-5" water column.
Helpful?
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· 8 years ago
what size and type of battery is recommended for the 20KW Generac LP generator
1 answer-
ProductExpert38· 8 years ago
This generator requires a group 26R 12 volt battery with 540 cold cranking amps minimum; or a group 35AGM 12 volt battery with 650 cold cranking amps minimum.
Helpful?
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· 9 years ago
Is the transfer switch the service rated one or the non service rated one
1 answer-
ProductExpert9· 9 years ago
The transfer switch for this generator is service rated.
Helpful?
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· 10 years ago
What size is the breaker that is in this unit ?
1 answer-
ProductExpert13· 10 years ago
The main line circuit breaker for this generator is 100 amps.
Helpful?
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Warranty
Manufacturer's Warranty
5 year limited warranty
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Shipping: Sold Out
Item # 43419
$20,369.00Shipping:
Free shipping (lower 48 states) - Factory shippedStore Pickup:
Not available - online only
- $18,859.00
Shipping:
Free shipping (lower 48 states) - Factory shippedStore Pickup:
Not available - online only
- $18,738.54
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
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Specifications
120/240
120/240
120/240
120/240
20
-
-
36
20
-
-
36
18
-
-
36
18
-
-
36
83.3
200
125
108
Multi-Fuel
Diesel
Diesel
Dual Fuel - Natural Gas and Propane
Generac
Generac
Generac
Cummins
OHVI
In-line
In-line
QSJ2.4
999 cc
3,300,000 cc
2,400 cc
2,400 cc
66 dB
-
-
67 dB
Aluminum
Aluminum
Aluminum
Aluminum
Yes
Yes
Yes
Yes
No
No
No
No
200
-
-
-
Yes
Yes
Yes
Yes
Air
-
-
Liquid
48 x 25 x 29
95.4 x 35.0 x 55.4 in
95.4 x 35.0 x 55.4 in
94.0 x 34.0 x 45.5 in
-
Automatic
Automatic
Automatic and Manual
-
62 Gal
62 Gal
-
-
lb
lb
1294.0000 lb
-
-
-
Yes
-
-
-
Yes
-
-
-
Yes
-
-
-
60
-
-
-
<5%




