Introduction: Indoor Concrete Table Fireplace (2 Day Build)

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This is the easiest 2-day build for an indoor concrete table Firepit... For making this project you will only need very few items that can be sourced easily in your local hardware shop or even you may already have everything in your house.

This project consists of a concrete firepit, decorative pebbles, and a sprit reservoir. This project is a must-have for extremely cold regions. Not everyone has a dedicated firepit for their house and this can be both a fully functional hand warmer and a nice decorative item for your house.

So without wasting any more time, let's get started in the build process.

Supplies

For re-making this project, you will need these basic items and materials.

  • White Cement
  • Normal cement
  • Plastic Box (2 sizes)
  • M-seal two part Epoxy clay
  • Pebbels as per your decoration
  • Sprit or methanol
  • Self-adhesive rubber feet
  • Sand Paper
  • Old but sharp chisel set
  • Masking tape
  • Spray paint Gold
  • Concrete Sealer (If available)
  • Some random tools and items

With these items, you can easily make this indoor project and can have a decorative piece for your living room table in winter. You can always change every aspect of this project. This is my version. Post your versions down below.

Step 1: Take a Plastic Box As a Mould

Firstly take two boxes of your desired size and shape. I have chosen these two boxes as I wanted to keep my firepit small and simple. You can use your molds and other shapes if you want. just make sure to keep the wall thickness well above 1 cm at least.

also, make sure that you use mold release for any specific molds if needed. I have used these two plastic boxes which didn't require applying any mold release spray.

Step 2: Mix Concrete Mixture and Pour

The very first step of this project is to determine the size of the firepit and after taking an appropriate size container, you have to mix enough of the concrete, to fill the mold.

For the concrete mix, Take 3 parts of the white cement and then take 1 part of the normal cement, This is due to give the concrete some color and make it more attractive.

Now mix the cement with enough water and make sure to not make the mix much runny and not much tight. Thus that will be easy to remove all the trapped bubbles. I mixed the concrete in my newly purchased mixing bowl.

I then poured the concrete mix into the mold until the halfway.

shake the mold to release any of the trapped bubbles.

Now place the inner box to see how much concrete you will need for the second layer.

Step 3: Make the Second Layer and Make the Marble Effect

It's time to make the second layer and thus we are going to make this with just a mixture of white cement and nothing else. No coloring is needed for this second layer.

Make sure to make this layer just after pouring the first layer and don't let the previous layer cure.

Mix enough cement to cover the necessary portions and then the similarity in the previous step, pour the mix into the box.

vibrate the mold to release all the trapped bubbles and then simply mix the two layers with your hand and make a marble type texture. keep that subtle and not too much mixing is needed.

After that, reinsert the inner box and make sure to check if the concrete is leveled with a spirit level, otherwise, the firepit will have unequal sides as per the height.

Step 4: Let the Concrete Cure

Now let the concrete cure for at least 1 whole day and in the meantime, make sure to add sufficient water to rehydrate the mix, otherwise, the concrete will not cue properly.

If needed you can cure the casting for 2 days and thus reduce the fear of breaking in the meantime.

Step 5: Demolding Time

After the concrete has been cured well,its time to de-mold the piece from the box. as I used a brand new box for the job and the sides were extremely smooth, they didn't take much time to simply pop out. If you have any other type of mold, You can use mold release beforehand which will be helpful while removing the part.

While removing make sure not to damage any sides of the parts.

after the successful de-molding, submerge the whole thing underwater for half and hour and let that dry for some time, this will ensure to cure the whole thing is for the last time.

Step 6: Make Some Bevels and Chamfers

Now it's the interesting part of the process where I sanded the top layer and then added some chamfers and the inner beveled curve for better aesthetics. I did this by simply using an old but sharp chisel and a small piece of 220 grit sandpaper.

I later used a small exacto blade for the crisp corners and you can shape the piece however you want. its completely up to your preference.

Step 7: Mask the Areas for Painting

Now before painting, it's time to apply the masking tape, wherever your font wants to paint. This step is also fully optional and you can change how the paint will be applied. You can add some gravity, you can do mandala art, or you can just simply color the piece with your barer hand and a paint brush it's always up to you and your imagination.

As I have gone with a much more minimal look for this project. I simply masked the upper part and sprayed gold spray paint all over the bottom part.

Step 8: Colour the Parts

Its painting time, I sprayed the bottom part with a gold spray paint can and applied two light coats at an interval of 15 minutes.

You can use two or more colors if want, but I have gone with the simple one-tone finish.

This step is very self explanatory so I am not describing this much.

Step 9: Add a Protective Layer of Epoxy Clay

As we all know, concrete is very much pours even after curing for a lot of time and can soak water quickly, and as we are going to make this firepit out of concrete and will be using sprit or methanol as the fuel we didn't want to the concrete soak all the fuel and make either a fire-hazard or simply drain the fuel.

So to tackle this problem, firstly you can simply place a metal bowl in the middle and then pour the fuel into that, but finding a fitting piece of bowl thingy for a specific area is both frustrating and not much practical.

Instead, we will just make sure to cover the inner walls with a compound called M-seal, which is a two-part epoxy clay that is much easy to get and can be shaped in any shape, And after hardening this is both waterproof and heat resistant at some degree. And it's enough for our job.


So take some M-seal and then form an inner wall or layer using your fingers and some water. water is very helpful while sculpting m-seal.

make the surface as smooth as possible and let that cure for at least 2 hours and better 4 hours for the best result. (make sure to mic the two parts well enough if you don't want to have the mixture not set up.)

After this step, your firepit is done and some basic elements are left to add.

Step 10: Add Feets

Add some rubber feet and stick them under the concrete firepit using their their adhedive stickers. or use some glue to fix them in place.

Step 11: Add the Pebbels

Now simply add the Pebbles and your firepit is ready to be fueled up and fired for the first time.

I have used these white pebbles for the project as they nicely blend with the white cement abf the black inner walls. You can use any other rocks and pebbles if you want.

Step 12: Add the Fuel

Load the Firepit with enough amount of methanol or spirit, Make sure to do this in a safe area, and have proper fire extinguishing equipment to tackle any hazardous situations.

I have used my so-called cheap spirit mix from a local hardware shop to keep the overall cost low, and have got an overall 30 minutes of continuous burning time with this much fuel in one go.

Step 13: Light It Up

Now just use a small flame from a stove lighter (I will prefer these long-head flame candle lighters) and light up your very own indoor concrete firepit for the first time.

This project is a very useful decorative and working project for cold days and you can also gift these to your friends dnd family in the next winter season. In this modern era of electronic gadgets, its and nice addition to the old days when the whole family used to gather together at night in the cold around the fire to be warm and get a pleasant time.

So it's me, signing off for today's project,m and I will be back very soon with more awesome but easy projects. Until then keep creative and have a very nice day.

also, feel free to comment down your thoughts and any suggestions and your reactions on this project down below, I will be more than happy to read your lovely comment and help you as much as I can.

Cold Challenge

First Prize in the
Cold Challenge