Every generator we stock. Every model number.
18 standby sizes, 36 model numbers, plus 18 DuroMax portables, all in stock in the Houston area, not on order. This is the same list the shop works from. Tap a size for photos, what it runs, and the numbers in plain English. No prices on the site: call, or ask about the one you like, and you get a real number for your house.
$2,000 off a generator install. While supplies last.
It only comes off the units on our floor, so when they're gone, it's gone. New air-cooled Generac installs come with a free 10-year warranty, and financing is there if you want it. Permit timing depends on your city or county. The install itself is usually one day.
Ten kilowatts to one-fifty.
Grouped the way people ask for them. Updated October 7, 2026.
For the house
Air-cooled Generac Guardian units. Ten to twenty-eight kilowatts, the size range almost every house around here lands in.
| Size | Model number | Electrical | Status | ||
|---|---|---|---|---|---|
 | 10kW Generac Guardian · air-cooled | G0072570 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 14kW Generac Guardian · air-cooled | G0072580 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 18kW Generac Guardian · air-cooled | G0072590 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 22kW Generac Guardian · air-cooled Best seller | G0072600 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 24kW Generac Guardian · air-cooled | G0072610 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 26kW Generac Guardian · air-cooled | G0073270 | 120/240 V single-phase | In stock · Houston area | Photos & details |
| 28kW Generac Guardian · air-cooled | G0072820 | 120/240 V single-phase | In stock · Houston area | Photos & details |
G0072570120/240 V single-phase
G0072580120/240 V single-phase
G0072590120/240 V single-phase
G0072600120/240 V single-phase
G0072610120/240 V single-phase
G0073270120/240 V single-phase
G0072820120/240 V single-phase
Big houses and small businesses
Liquid-cooled Generac Protector units. A car-style engine that runs cooler and quieter, for estates, offices, clinics, and restaurants.
| Size | Model number | Electrical | Status | ||
|---|---|---|---|---|---|
| 25kW Generac Protector · liquid-cooled | XG02525AUAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG02525CUAX | 208/240/480 V three-phase, configurable | ||||
 | 30kW Generac Protector · liquid-cooled | XG03025AUAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG03025CUAX | 208/240/480 V three-phase, configurable | ||||
 | 32kW Generac Protector · liquid-cooled | XG03245ANAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG03245CNAX | 120/208 V three-phase, configurable |
XG02525AUAX120/240 V single-phaseXG02525CUAX208/240/480 V three-phase, configurable
XG03025AUAX120/240 V single-phaseXG03025CUAX208/240/480 V three-phase, configurable
XG03245ANAX120/240 V single-phaseXG03245CNAX120/208 V three-phase, configurable
Commercial and industrial
Single-phase or three-phase, in the voltage your building already has. Grocery, cold storage, churches, warehouses, multi-building sites.
| Size | Model number | Electrical | Status | ||
|---|---|---|---|---|---|
| 20kW Generac Guardian · air-cooled | G0072710 | 120/208 V three-phase | In stock · Houston area | Photos & details |
| 40kW Generac Protector · liquid-cooled | XG04045ANAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG04045ANAC | 120/240 V single-phase, CA/MA emissions | ||||
| XG04045CNAX | 120/208 V three-phase, configurable | ||||
| XG04045CNAC | 120/208 V three-phase, configurable, CA/MA emissions | ||||
| 48kW Generac Protector · liquid-cooled | XG04845ANAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG04845CNAX | 120/208 V three-phase, configurable | ||||
| 60kW Generac Protector · liquid-cooled | XG06045ANAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG06045CNAX | 208/240/480 V three-phase | ||||
 | 80kW Generac Protector · liquid-cooled | XG08045ANAX | 120/240 V single-phase | In stock · Houston area | Photos & details |
| XG08045CNAX | 208/240/480 V three-phase | ||||
| 100kW Generac Protector · liquid-cooled | RG10089ANAC | 120/240 V single-phase | In stock · Houston area | Photos & details |
| RG10089GNAC | 208/120 V three-phase | ||||
| RG10089JNAC | 240/120 V three-phase | ||||
| RG10089KNAC | 480/277 V three-phase | ||||
 | 130kW Generac Protector · liquid-cooled | RG13089ANAC | 120/240 V single-phase | In stock · Houston area | Photos & details |
| RG13089GNAC | 208/120 V three-phase | ||||
| RG13089JNAC | 240/120 V three-phase | ||||
| RG13089KNAC | 480/277 V three-phase | ||||
| 150kW Generac Protector · liquid-cooled | RG15089ANAC | 120/240 V single-phase | In stock · Houston area | Photos & details |
| RG15089GNAC | 208/120 V three-phase | ||||
| RG15089JNAC | 240/120 V three-phase | ||||
| RG15089KNAC | 480/277 V three-phase |
G0072710120/208 V three-phase
XG04045ANAX120/240 V single-phaseXG04045ANAC120/240 V single-phase, CA/MA emissionsXG04045CNAX120/208 V three-phase, configurableXG04045CNAC120/208 V three-phase, configurable, CA/MA emissions
XG04845ANAX120/240 V single-phaseXG04845CNAX120/208 V three-phase, configurable
XG06045ANAX120/240 V single-phaseXG06045CNAX208/240/480 V three-phase
XG08045ANAX120/240 V single-phaseXG08045CNAX208/240/480 V three-phase
RG10089ANAC120/240 V single-phaseRG10089GNAC208/120 V three-phaseRG10089JNAC240/120 V three-phaseRG10089KNAC480/277 V three-phase
RG13089ANAC120/240 V single-phaseRG13089GNAC208/120 V three-phaseRG13089JNAC240/120 V three-phaseRG13089KNAC480/277 V three-phase
RG15089ANAC120/240 V single-phaseRG15089GNAC208/120 V three-phaseRG15089JNAC240/120 V three-phaseRG15089KNAC480/277 V three-phase
Which one is yours?
Same units, with the one-line answer to "who is it for."
For the house
Townhouse or a smaller home. Fridge, lights, Wi-Fi, one AC.
See this one →The starter. Fridge, lights, one AC, in a smaller home.
See this one →Most 2,000 to 2,500 sq ft homes. Essentials plus a second AC.
See this one →Best sellerThe one. Whole-home for a standard 2,500 to 3,500 sq ft house.
See this one →Whole-home with a bigger AC load or a pool pump.
See this one →Larger homes. 3,500 to 4,500 sq ft, two big ACs.
See this one →Big house, multiple ACs, EV charging. Don't want to think about it.
See this one →Big houses and small businesses
Commercial and industrial
Small shops, offices, and strip-center suites on three-phase service.
See this one →Retail, small clinics, churches. Big houses, too.
See this one →Larger clinics, small multi-tenant buildings.
See this one →Warehouses, manufacturing, car washes, mid-size retail.
See this one →Bigger facilities, multi-tenant buildings, larger clinics.
See this one →Grocery, larger clinics, churches with a campus, multi-building.
See this one →Cold storage, light industrial, restaurants with a big walk-in.
See this one →Industrial, data and telecom, multi-building sites.
See this one →Not ready for a standby? Eighteen portables, in stock.
DuroMax inverters and open-frame units, on the showroom floor next to the standbys. Every one runs on gas or propane; the tri-fuel ones also hook to your natural gas line. A manual transfer switch, installed by us, is the safe, legal way to run a house off one.
| Item | Running watts | Fuel & start | Status | ||
|---|---|---|---|---|---|
 | XP2300iH DuroMax · inverter · 80cc | 1,800 W gas · 1,700 W propane | Dual fuel: gas or propane Pull start, with remote | In stock · Houston area | Details |
 | XP7000iHT DuroMax · inverter · 320cc | 5,500 W gas · 5,225 W propane · 4,750 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP9500iH DuroMax · inverter · 459cc | 7,600 W gas · 7,200 W propane | Dual fuel: gas or propane Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP9500iHT DuroMax · inverter · 459cc | 7,600 W gas · 7,200 W propane · 6,500 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP11000iH DuroMax · inverter · 459cc | 9,000 W gas · 8,550 W propane | Dual fuel: gas or propane Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP11000iHT DuroMax · inverter · 459cc | 9,000 W gas · 8,550 W propane · 7,700 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP16000iH DuroMax · inverter · 744cc | 13,000 W gas · 12,350 W propane | Dual fuel: gas or propane Push-button electric start, with remote | In stock · Houston area | Details |
 | XP16000iHT DuroMax · inverter · 744cc | 13,000 W gas · 12,350 W propane · 11,200 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote | In stock · Houston area | Details |
 | XP28000iH DuroMax · inverter · 999cc | 22,000 W gas · 20,000 W propane | Dual fuel: gas or propane Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP28000iHT DuroMax · inverter · 999cc | 22,000 W gas · 20,000 W propane · 16,000 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP5500HX DuroMax · open frame · 210cc | 4,500 W gas · 4,275 W propane | Dual fuel: gas or propane Electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP13000EH DuroMax · open frame · 500cc | 10,500 W gas · 10,000 W propane | Dual fuel: gas or propane Push-button electric start, with remote | In stock · Houston area | Details |
 | XP13000HX DuroMax · open frame · 500cc | 10,500 W gas · 10,000 W propane | Dual fuel: gas or propane Push-button electric start · CO Alert | In stock · Houston area | Details |
 | XP13000HXT DuroMax · open frame · 500cc | 10,500 W gas · 10,000 W propane · 9,000 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote · CO Alert | In stock · Houston area | Details |
 | XP15000HX DuroMax · open frame · 670cc | 12,000 W gas · 11,400 W propane | Dual fuel: gas or propane Push-button electric start, with remote | In stock · Houston area | Details |
 | XP15000HX+ DuroMax · open frame · 500cc | 12,000 W gas · 11,400 W propane | Dual fuel: gas or propane Push-button electric start, with remote | In stock · Houston area | Details |
 | XP15000HXT DuroMax · open frame · 670cc | 12,000 W gas · 11,400 W propane · 10,260 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote | In stock · Houston area | Details |
 | XP15000HXT+ DuroMax · open frame · 500cc | 12,000 W gas · 11,400 W propane · 10,500 W natural gas | Tri fuel: gas, propane, natural gas Push-button electric start, with remote | In stock · Houston area | Details |
- 9,000 W gas · 8,550 W propane · 7,700 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote · CO Alert
- 13,000 W gas · 12,350 W propane · 11,200 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote
- 22,000 W gas · 20,000 W propane · 16,000 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote · CO Alert
- 10,500 W gas · 10,000 W propane · 9,000 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote · CO Alert
- 12,000 W gas · 11,400 W propane
- Dual fuel: gas or propane · Push-button electric start, with remote
- 12,000 W gas · 11,400 W propane · 10,260 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote
- 12,000 W gas · 11,400 W propane · 10,500 W natural gas
- Tri fuel: gas, propane, natural gas · Push-button electric start, with remote
Ask us anything. These come up most.
Is this list current?
It's the same list the shop works from, and it says when it was last updated at the top. If a unit sells before we update it, we'll tell you on the phone and put you on the next one. Call and ask.
Which one do I need?
Most houses around here land between 14 and 28kW. Five taps on the calculator gets you a size, and we confirm it at the free visit by counting your circuits and checking your gas meter.
Why aren't there prices?
Because the gas run, the pad, the transfer switch, and your panel change the number from one house to the next. A price on a web page would be wrong for most people. Call, or book the free visit, and you get a written number for your house.
Can I see one before I buy?
Yes. Some of these are on the showroom floor at 13910 Alice Road in Tomball, next to the portables. Come by, or call and we'll tell you what's out there right now.
Do you install what you sell?
Yes. Our own crews, our permit, our inspection. Usually one day, and we throw the main with you watching.
What about financing?
Synchrony plans on generators and electrical work, and other lenders if Synchrony isn't the fit. The plans are here. We walk you through them at the visit.
Generators for Sale
Buy with confidence from a trusted local dealer Power up your property with reliable, long-lasting backup energy solutions. Shop industry-leading standby generators designed for homes and businesses. Looking to buy a Generac standby generator or portable generators? We make it easy.
Like one of these?
Call and tell us which. Two minutes on the phone and you'll know if it's the right size.