Generators, Blowers and Extension Cords

How much electricity does my blower use?

Very minimal, as illustrated in the example below:
Example: One (1HP) Blower is running at 115Volts at 7.0 Amps.

(115V X 7.0 Amps) =0.805 Watts / hour, which means the 1HP blower consumes approximately 0.805 KWT (Kilowatts) X (an average rate $0.16/ hour of electricity) =  $0.13 per hour cost of electricity.

What size generator should I use to power up my blowers?

We recommend using a minimum of 2000W for an average sized blower. If you need to connect more than one unit, then you will find it useful to use this formula to calculate running watts from the labeled amps on the blowers.

For Example: The KP-1 uses 7.0 running amps. Therefore 7.0 (amps) x 115V (volts) = 805 watts to run continuously with back pressure (connected to an inflatable) However, on startup it will use up to 17 amps (17 x 115V = 1955 watts), which is just under a 2000-watts generator.

Note: The startup is high because it needs back pressure from the inflatable to insure continuous low amp draw; otherwise the amps stay high at 17 on free flow.

Can I use an extension cord?

Yes. However make sure it’s a 12-G thick and you do not exceed 25?.

What are the bounce house power requirements?

Inflatables need to be connected to a dedicated or semi dedicated electric outlet. For most homes this means an outlet on the outside of your home such as deck or garage.

Why can’t I use extension cords longer than 50ft?

No, this is unsafe and could damage the blower, extension cord or even worse – start an electric fire in a worst case scenario. If you need to place an inflatable more than 50? from an electrical source you must use a generator.

Using an extension cord with too small a gauge of wire for the current draw will cause the wire and cord to heat up! This can lead to melting of receptacles, damage to your electrical device (and could potentially cause an electrical fire).

What size generator should I use to power up my blower?

We recommend using a minimum of 2000 watts per an average sized blower. If you need to connect more than one unit, then you will find it useful to use this formula to calculate running watts from the labeled amps on the blowers:

For Example: The average small blower uses 7.0 running amps.
Therefore 7.0 (amps) x 115V (volts) = 805 watts to run continuously with back pressure (this is achieved when the inflatable is completely full of air (blown up)  and the blower is just maintaining the pressure or air lost from the seams.)

However on start-up, it will use up to 17 amps (17 x 115V = 1955 watts) , which is just under a 2000 watts generator.

Note: The start up is high because it needs back pressure from the inflatable to insure continuous low amp draw; otherwise the amps stay high at 17 on free flow.

Generator Do’s and Dont’s

  • Never start all of the blowers at the same time. Always start one at a time and
  • If you run out of fuel make sure you turn the blowers off or unplug before restarting the generator and restart each blower one at a time.

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