What It Costs
| System | Installed price |
|---|---|
| Essential-circuit system (13kW RS13A) | from $8,000 |
| Whole-home air-cooled (17–20kW RS17A/RS20A) — most popular | $11,000–$16,000 |
| Liquid-cooled / multi-zone (RS25 and up) | $16,000–$20,000+ |
One turnkey number covers the generator, automatic transfer switch, concrete pad, gas connection, wiring, permits, and final inspection. No surprises.
What's Included in Every Installation
- Genuine Cummins equipment through an authorized dealer, with valid factory warranty — gray-market units from unauthorized resellers frequently are not covered
- Load calculation to size the unit to your home — not a guess
- All permits, utility coordination, city inspection, and HOA paperwork
- Natural gas or propane hookup (most units are dual-fuel capable)
- Automatic transfer switch programmed and tested before we leave
Air-cooled or liquid-cooled?
The Cummins air-cooled range covers most DFW homes: 13kW to 20kW, natural gas or LP, published at 65 dB(A) at 23 feet, and carrying a 5 year / 2,000 hour limited warranty. Above that the liquid-cooled RS range starts at 25kW for larger homes and multi-zone HVAC, and carries a 2 year standby base warranty rather than five — a real difference worth knowing before comparing two quotes. The automatic transfer switch is a separate product with its own 2 year warranty. Sizing is decided by air conditioning load, not square footage, so the recommendation comes from a load calculation rather than a quota.
