get out - go out

[britfan]

Can I say these?
It's cold out outside. So I decided to stay at home.
1. Good thing I don't have to get out of the house.
2. Good thing I don't have to get out of house.
3. Good thing I don't have to go out.

 

[Rover_KE]

Please use Edit Post to number your sentences.

 

[GoesStation]

Number 3 is grammatically correct and natural.

Write It's cold out or It's cold outside.

 

[Skrej]

#1 is also grammatical.* It's perhaps not the most natural in the given context, but it still works for me.

'Get out' implies some sort of emergency, danger, or other pressing concern.

The house in on fire, we have to get out of here!
If I stay cooped up in here any longer, I'll go crazy. I've got to get out of this house.
I told the man to get out of my house before I called the police.

"Go out" simply means to leave the house for more mundane reasons.

Let's go out and get some food.

*Edit: I see the OP was edited, perhaps it wasn't grammatical originally.