Winado 062975324390 Installation guide

Hello! I'm a chat assistant familiar with the zokop Electric Fireplace SF301-35 instruction manual. I've reviewed the document, which outlines the installation, operation, and safety information for this electric fireplace. It has features like adjustable flame colors, a heater function, and the ability to be wall-mounted or used on a table stand. I'm here to help if you have any questions about the product or the manual.
Can this fireplace be used outdoors?

What kind of battery does the remote control use?

How far away should combustible materials be?

Can I use an extension cord with this fireplace?