Combine 1 cup (240 mL) of white vinegar with 1 cup (240 mL) of warm water in a spray bottle. Shake the bottle to make sure they are mixed well. Use a clean spray bottle that has not ever had any harsh chemicals in it. You can buy empty spray bottles at most home goods and hardware stores. Working from the top down, spray your vinegar solution all over the bricks. Pay special attention to areas that have a lot of soot, which could be right around the opening of the fireplace. Make sure you have a drop cloth down to catch any drips. If you have leftover vinegar solution, you can use it as a natural cleaner for bathrooms and countertops. Vinegar is mildly acidic, so it will work to break down the soot and grime stuck onto your bricks. Let the vinegar and water sit on your bricks, but do not let it dry. Don’t let it sit for longer than 10 minutes, or the acidity could start to damage your bricks. Dip your scrub brush in warm water and scrub your bricks. Pay special attention to the grooves in between bricks and any areas that have a lot of soot. Scrub at the bricks until the vinegar smell is no longer there. You can sprinkle baking soda over your bricks to remove the vinegar faster. However, this will cause a foaming reaction on your bricks and could create a mess. Use a soft sponge to quickly spread warm water over all your bricks. Take away any drop cloths or towels you used on the floor around your fireplace. Let your fireplace dry completely before you burn anything in it again.

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Write a summary of the previous text in Vietnamese:
Pha nước với giấm trắng trong bình xịt với tỉ lệ 1:1. Xịt dung dịch giấm vào bên trong và mặt ngoài lò sưởi. Chờ 10 phút cho dung dịch ngấm. Kỳ cọ gạch từ trên xuống dưới bằng bàn chải. Lau rửa gạch bằng nước ấm và dọn bạt phủ sàn.