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Whole House Propane Generators
Whole House Propane Generators for Dependable Standby Power
Propane's shelf stability makes it a strong fuel choice for whole-home backup, since a tank can sit ready for months or years without degrading the way gasoline does. This collection spans standby systems from Cummins, Briggs & Stratton, and Wildcat that start automatically, alongside DuroMax portable generators offering dual or tri fuel propane capability for buyers who want flexibility without a permanent installation.
Automatic Standby Systems on Propane
Cummins' RS17A and RS20AC Quiet Connect units, Briggs & Stratton's 20kW, 25kW, and 26kW PowerProtect DX models, and Wildcat's 15kW Frontier and Freedom generators all run on propane and install permanently with an automatic transfer switch, starting within seconds of an outage without any manual intervention. This automatic operation is the main advantage over a portable unit: power restores itself even if you're not home when the outage happens.
Wildcat's Extended Range for Larger Properties
Beyond typical residential standby, Wildcat's Renegade 15kW 3-phase model serves properties needing three-phase power, while the Roughneck 30kW and 60kW units, available in both standby and prime power configurations, extend into commercial and industrial territory for buyers with substantially higher continuous power needs than a standard home requires.
Portable DuroMax Alternatives
For buyers who don't want a permanent installation, DuroMax's propane-capable lineup spans from the 7,000 Watt Dual Fuel unit up through the XP28000IH and XP28000IHT at 28,000 watts, with tri fuel models like the XP7000iHT, XP13000HXT, XP15000HXT+, and XP16000iHT adding natural gas as a third fuel option for buyers with a gas line. The Cummins Onan P9500DF also offers portable dual fuel capability with remote start included.
Frequently Asked Questions
Why choose a standby system over a portable propane generator for whole-house backup?
A standby system starts automatically the moment an outage is detected, without anyone needing to be home or take action, while a portable unit requires manual setup and starting each time. If you travel often, aren't always home, or simply want power restored without any involvement on your part, a standby unit like the Cummins RS20AC or a Wildcat Freedom generator is the stronger fit despite the higher upfront cost and installation requirement.
How big a propane tank do I need for whole-house standby backup?
This depends on your generator's fuel consumption rate and how long you want it to run between refills, but whole-house standby systems are typically paired with larger stationary tanks, often 250 to 500 gallons, rather than the smaller tanks used for portable units or grills. Calculating expected hourly fuel usage against tank size, and factoring in how long you want to run without a refill during an extended outage, is worth doing with your installer before finalizing tank size.
Is the Wildcat Renegade's three-phase power something I need for a typical home?
Most residential homes run on standard single-phase power, so three-phase, like the Renegade 15kW offers, isn't necessary unless your property specifically has three-phase equipment or wiring, which is more common in commercial settings or certain larger homes with specific electrical setups. If you're unsure whether your home requires three-phase, checking with an electrician before choosing between the Renegade and a single-phase option like the Freedom or Frontier is worth doing.
