When planning an event that includes a bounce house, one of the most essential considerations—besides size and safety—is the power source required to keep it inflated and functioning properly. Bounce houses aren’t simply inflated once and sealed shut. Instead, they use a continuous airflow system powered by an electric blower. This blower must remain on and plugged in throughout the entire duration of use, as it constantly pushes air into the inflatable while allowing small amounts of air to escape through the seams. Because of this, a reliable and adequate power source is non-negotiable for safe and uninterrupted operation.
Standard Power Needs for Most Bounce Houses
The typical residential bounce house uses a blower rated between 1 HP and 2 HP (horsepower). These blowers usually run on standard 110-120V outlets—the same kind you’d use for everyday household appliances. The average blower will consume around 7 to 14 amps, which means it’s safe to plug one into a dedicated 15-amp circuit. However, it’s important not to overload the circuit by plugging in other high-draw appliances like refrigerators or large sound systems at the same time. For most backyard parties, simply ensuring a nearby outdoor outlet is available and tested will be enough to run a single blower. For safety, using a heavy-duty extension cord rated for outdoor use (12-gauge or thicker) is recommended if the outlet is more than 25 feet away.
Multiple Inflatables or Larger Units
Events that use larger inflatables or multiple bounce houses will require additional planning. Bigger inflatables like combo units, obstacle courses, or inflatable slides may use two or more blowers, each needing its own circuit to prevent overloading. Some commercial-grade setups may even require 20-amp circuits, especially if the blower operates at higher horsepower or if several are running in tandem. In these cases, you’ll either need to identify multiple circuits on the property or use a portable generator to supply the extra power. This is often the case at parks, open fields, or other public spaces where electrical outlets are limited or unavailable.
Using Generators for Bounce Houses
When electrical outlets are out of reach, a generator becomes essential. Most bounce house providers will supply or recommend a generator if your location lacks accessible power. A generator with 3,000 to 5,000 watts can typically support one to two blowers, depending on their horsepower. Always ensure that the generator you use is rated for continuous output (not just peak power) and has clean power suitable for sensitive equipment. Additionally, generators should be placed at least 10–20 feet away from the bounce house to minimize noise and exhaust exposure. Remember to refuel only when the generator is turned off and cooled down, and never operate one indoors or in enclosed spaces due to carbon monoxide risks.
Safety and Weather Considerations
Power interruptions, whether due to a tripped breaker, unplugged cord, or generator failure, can quickly deflate the bounce house, posing a safety hazard. That's why constant monitoring is crucial—especially in settings where small children are playing. Wet weather can also create risks with electric cords and outlets. If rain is expected, make sure all electrical connections are covered with waterproof protectors and elevate cords off the ground to avoid water pooling. It’s also advised to shut down the bounce house during heavy rain or thunderstorms to prevent electrical hazards and protect the unit from damage.
Why Professional Setup Matters
To avoid these risks and ensure everything runs smoothly, it’s always best to work with experienced providers who understand the technical and safety requirements of bounce house setup. Companies like Big and Bright Inflatables LLC take the guesswork out of power planning by offering professional installation, proper blower sizing, safe extension cords, and even generator rentals if needed. They ensure that each unit is matched with the right power source and that all components are properly secured, monitored, and maintained throughout your event. With knowledgeable providers, families and event planners can enjoy the fun without worrying about power disruptions or safety issues.
Conclusion: Keep It Inflated with the Right Power Source
Operating a bounce house safely and effectively depends on more than just plugging in a blower. It requires the right voltage, correct amperage, and often multiple circuits or a generator, especially for larger setups. Using outdoor-rated extension cords, securing connections, and understanding your venue’s electrical limitations are all part of the preparation. Whether you’re setting up in your backyard or organizing a public event, knowing your power needs in advance ensures the inflatable stays up, fun flows uninterrupted, and everyone stays safe. Plan wisely, and your bounce house will be the highlight of the day—fully inflated, fully powered, and full of joy.
