Blow hot air on plants

I have 2 week old seedlings in a cabinet in my garage. I want to use a space heater to keep them warm this winter. I can set my heater to keep the cabinet at a certain temperature. Can I use the space heater as a fan too and have it blow the hot air over my plants?

NO. Your trying to put a space heater in a cabinet? What are your temps now? I like mine around 75 when I can and less then 80 but not going below 65. What is your set up like?

Right now it's about 68 degrees. It's going to get a lot colder outside very soon. I probably should have waited to start in the spring but I got too anxious. I decided to put the space heater outside of my air intake. I'll keep an eye on the temperature and see how it goes.