Yes, as long as it is rated for indoor use and no combustibles are nearby to cause a fire and, if anyone is present inside the house during that time, it is a good idea to have a carbon monoxide detector plugged in for safety and the rest of the house should be ventilated for the time being.

Typical for drying out the home, drywall and helping the spackle set & dry quicker.

It's putting water into the air, not taking it out:

https://www.tinywoodstove.com/how-much-water-does-burning-propane-produce/?srsltid=AfmBOoqX8DYBVW4KSMZHwZjcnt4ciIUZCKHIAbQP1EyF_TpojYykKXy_