Need help with heating a grow room asap

Hey, I've run into a pretty big problem we weren't expecting very early. This is the first grow I've attempted and until we had already germinated, and planted we hadn't realized that the temperature in the room wasn't getting up to what it should be at. Right now it seems to be very cold, and we're not sure what to do. What do you guys recommend doing? This is something we have to take care of very soon or we'll chance having problems early on. Its about 3'x4'. Anyone have any ideas? We were thinking about going with a heater and thermostat to control the temperature, but for the life of us can't find any thing that could do that.

Um, yeah, a heater and thermostat. An oil filled electric radiator with built in thermostat works well. I'm not going to go find it for you though...

We have a plug in oil heater, but I can't seem to find any sort of thermostat that we can plug that into to keep an ambient temperature. Would it be the type of thing that has to be built into the heater? Sorry, just spent the last hour or so and can't really find much. Thanks for any help.

go pik urself up a 20 dollar electric space heater from walmart tht should wrk

Check out this one.

http://www.horticulturesource.com/c-a-p-custom-automated-products-cooling-heating-thermostat-temp-controller-15-amp-120-volt-50-100-f-day-night-3-5-7-degree-differential-p4890/?osCsid=3e070aed08cf823e8293239be5b70e32

Go to a reptile store and purchase a ceramic heat bulb and a thermostat extension cord.

http://www.google.com/products/catalog?oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&q=reptile+thermostat&um=1&ie=UTF-8&cid=16025023162487603154&sa=X&ei=uJFtTYjJLpKqsAPFn-CrBQ&ved=0CCMQ8wIwAA#
http://www.google.com/products/catalog?q=ceramic+heat+bulb&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&cid=8180217873170528559&sa=X&ei=1ZFtTfGkDYX2tgPatP23BQ&ved=0CCkQ8gIwAA#

Do you guys think this http://www.amazon.com/WIN100-Heating-Cooling-Programmable-Thermostat/dp/B000E7NYY8/ref=sr_1_1?ie=UTF8&qid=1299026192&sr=8-1 with an oil space heater would be the ticket? Thanks for all the help, definitely makes it easier knowing what other people have done

Yeah, that should work.

What type of light are you using? Are you air cooling it? Do you have a fresh air intake? Have you tried turning off the fresh air intake using a timer during the coldest moments You can put your oil heater on a timer and have it turn on during the coldest moments.

My favorite form of heating a room up is more lights more lights! more lights! more lights!!