Back up power for incubator?

Hey everyone,
I was just wondering, do any of you use any type of back up power for your incubators in case you loose power? If so, what do you use and how long will it provide power. I was looking at the back up power supplies for computers, and like for instance , one states that:
Estimated Runtime at Full load (980 Watts) 7 minutes
Estimated Runtime at Half load (490 Watts) 20 minutes
Just wondering how long this would run a Herpstat II and 60 watts of flexwatt and two small computer fans?

Thanks,

Dave

I have 2500 watt generator that will run entire snake equipment if power goes out.

Your best bet is to get a nice generator of some sort. I have gone down this route instead of the plug back up power pack. Also I keep about 10 gallons of water in the form of gatorade jugs at all times at the bottom of my incubators. The water mass keeps the temps from fluctuating and will also help during those unexpected power outages.

I am guessing that you are looking at a UPS of some sort. Very few run with PURE Sine wave systems proportional thermostats usually will not work properly with modified or close to pure sine wave power systems (they will stick in 100 percent power and not shut down) The second part is that the ups devices are designed to give you enough time to save a file and shut down a system they often only run for a short time 10-15 min. not long enough to be useful. A back up genny is about the only way and at that a PURE sine wave one (honda is the only one that comes to mind.)

"What you want to look for is to make sure
when powered by the supply that the thermostat can shut off properly. This
is because the component in a proportional thermostat (triac) once fired in
the half ac cycle stays on until the voltage reaches the 0vac crossing point
of the sine wave. If the supply does not properly pull the sine wave to
zero then the triac would stay on into the next half cycle and you basically
have a runaway voltage scenario where its full on and the thermostat can do
nothing about it. This is why some cheap surge suppressors can cause
problems if the capacitors they use to prevent surge load the line enough to
not fully drop to zero volts."
Dion Brewington
Owner, Spyder Robotics

Gas powered generator. Mine was stolen, now I have to buy another one. >.<