Briggs & Stratton PowerProtect 13kW
#7 in Under 15 kWFull review
For buyers covering essentials who already have, or will buy, a separate transfer switch and want a long warranty.
Norwall $4,460$4,460
13 kW11.5 kW69 dBA
2.9/5
For smaller homes that only need the fridge, furnace and lights backed up, on Kohler’s cheapest kit with its full-coverage warranty.
- 10 kWPropane
- 9 kWNatural gas
- Included, 100 ATransfer switch
- 5 yearsWarranty
Check price at Norwall$4,288
Price checked November 7, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Load center switch comes prewired for 12 essential circuits, which keeps the install simple and cheap
- Warranty covers parts, labor and dealer travel for the full 5 years
- Remote monitoring included at no extra cost
Cons
- Loudest here at 71 dBA running and 67 dBA during the weekly test
- Steel cabinet can rust in coastal air, unlike aluminum rivals
- Monitoring needs a wired Ethernet run to the generator
The Kohler RESV family
Every Kohler RESV model we rank, smallest first. Ratings compare each against its own size.
| Model | Propane | Rating | Price |
|---|---|---|---|
| Kohler 10RESVL 10kW (this one) | 10 kW | 2.9/5 | $4,288 |
| Kohler 12RESVL 12kW | 12 kW | 3.0/5 | $4,728 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | 10RESVL-100LC12 |
|---|---|
| Output | |
| Rated output, propane | 10 kW |
| Rated output, natural gas | 9 kW |
| THD | Under 5% |
| Engine | 725 cc |
| Engine speed | 3,600 rpm |
| Install | |
| Transfer switch | Included, 100 A |
| Load management | No |
| Remote monitoring | Yes |
| Enclosure | Steel |
| Dimensions | 30.6 x 28 x 32.4 in |
| Weight | 428 lb |
| Noise and warranty | |
| Noise, normal operation | 71 dBA |
| Noise, weekly self-test | 67 dBA |
| Warranty | 5 years |
Alternatives in this size
Kohler 12RESVL 12kW
#8 in Under 15 kWFull review
For smaller homes that want a well pump or a small air conditioner on top of the essentials, with Kohler’s full-coverage warranty.
Norwall $4,728$4,728
12 kW11 kW71 dBA
Kohler 14RCAL 14kW
#9 in Under 15 kWFull review
For homes that want essentials plus one air conditioner managed automatically, with a full parts and labor warranty.
Norwall $5,899$5,899
14 kW12 kW69 dBA
Compare
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