Hi, I would like to know if I could use this heater in my porch which has 3 walls and an open front; rain doesn't get in there?

Using a portable gas heater or stove in a porch can be safe if you follow key precautions: Ventilation is essential—porches must have adequate airflow to prevent buildup of carbon monoxide. Never use gas appliances in fully enclosed or unventilated spaces. Keep heaters/stoves away from flammable materials and ensure a stable, level surface. Always follow the manufacturer's instructions for safe use and maintenance. For well-ventilated, open porches, short-term use can be suitable with caution.