Fire Pit

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By Tim Carter
©1993-2010 Tim Carter

Summary: There are guidelines when you build a fire pit. Fire pits are regulated in many communities. Consider the natural view when planning your outdoor fire pit. Prevailing winds should be considered when placing a fire pit.

DEAR TIM: Last night I sat around a fire pit at a friend's house. Everything about this magical outdoor fire pit, including the occasional puff of smoke, was enjoyable. I've decided I want to build a fire pit. What's involved? Is it a good idea to have a patio fire pit or should I consider a garden fire pit? Do you have to have a fire-pit ring? Valerie C., Brant, MI

DEAR VALERIE: You and I, and thousands of other people, were doing the same thing last night. It was a glorious autumn evening and I watched the last rays of sunlight wash the trees across the lake from my house with my back to the fire. Unfortunately the previous owner of the house I moved into made several mistakes when he built my backyard fire pit. I think he was a victim of carbon monoxide poisoning from all the gas that washes over you as you sit in front of my fire pit. Next spring I intend to move mine.

The first thing you need to do before you get out your shovel and order the material to build your new fire pit is to check with your local officials. There are many communities that are starting to restrict outdoor fires for all sorts of reasons. At the very least, there may be zoning regulations that control if you can build an outdoor fire pit, and if so, its size and where it can be located on your property. Don't overlook this important step.

This fire pit, while attractive, was built in the wrong location by a homeowner who didn't orient it to the view and prevailing wind direction. PHOTO CREDIT: Tim Carter
This fire pit, while attractive, was built in the wrong location by a homeowner who didn't orient it to the view and prevailing wind direction. PHOTO CREDIT: Tim Carter
There are countless fire-pit designs. Some are as simple as the traditional campfire surrounded by a ring of rock. A friend of mine built a fire pit in the middle of his patio and had a welder make a five-foot diameter steel fire pit ring. This homeowner set the top of the steel fire pit ring flush with his brick pavers for a very sleek look.

When I relocate my fire pit in the spring, I'll use large rounded boulders that currently form the back wall of my fire pit. These rocks will be about 9 inches higher than the surface of my patio. The inner diameter of my fire pit will be no less than 5 feet and there's a good chance I'll make it 6 feet in diameter.

The previous homeowner who built my fire pit made two enormous mistakes. The first one was to ignore the natural view. In my case, the patio is immediately adjacent to a very large lake. The fire pit is on the house side of the patio and your back is to the magnificent lake view when you look at the fire. I plan to move the fire pit so that you can see the fire easily and view the lake to the left of the flames.

The second mistake that was made was failure to orient the fire pit with respect to the prevailing winds. More often than not when you are sitting at my fire pit you're bathed in smoke as the patio is downwind of the fire. I can't believe the owner made this basic mistake. The new location will allow the smoke to drift over the lake and away from my patio most of the time. There will be occasions when the wind will shift, but for the most part I'll be smoke-free sitting on the patio.

Consult with your local fire department's fire-prevention officer. She/he may be able to offer some great tips so that you don't set your house on fire, your neighbors' and/or the woods around your home. Be sure you assemble some basic fire-fighting tools and supplies to have at the ready when you do decide to have a roaring fire. A charged garden hose is a must if it's available.

I prefer to build a fire pit that's recessed in the ground about 9 to 12 inches. It's best to construct a gravel-lined drainage ditch away from the bottom of the fire pit to a low spot on your property. This feature prevents standing water from laying in your fire pit. The last thing you want is to have to bail out black ash-laden water some evening when you want to build a fire.

As the trench leaves your pit you can install a drainage pipe to channel the water. Be careful if you choose to use plastic pipe. Don't extend the pipe into the fire pit as the heat of the fire and the coals will melt it in short order. I plan to use a cast-iron pipe in my fire pit to eliminate the possibility of problems.

If you decide to build an outdoor fire pit and you have neighbors who live nearby, you can maintain friendly relations with them if you take the time to burn only very dry wood. Wet wood creates vast amounts of smoke that pollutes the air and irritates neighbors. Dry wood releases far less unburned combustible material into the air.

Never burn garbage, plastic or anything other than wood in your fire pit. Different man-made objects can release very toxic gases as they burn. You can poison yourself, your friends or neighbors.

Use common sense in dry weather when there is a possibility of wild fires or forest fires. Follow all outdoor fire bans in dry weather or periods of low humidity and high winds. The seemingly simple fire in your outdoor fire pit can kill people and cause millions of dollars of damage in very short order if conditions are favorable.





Comments:

Bob
27 Oct 2008, 07:52
I am also interested in building a fire pit in my patio area. I have 1 problem though. In the area where I would like to build the pit I have a plastic propane line 6-8"'s underground. Any thoughts on how I could still build a pit in this area?
Ken
28 Oct 2008, 16:33
I have built several fire pits including an above ground pit that I fashioned from an old, round oil tank with flat ends.

I made a template that cut the "tube" of the tank at about a 45 degree angle. After washing the tank repeatedly and venting it with a blower, I cut the tank with a torch and ground the edge smooth with a grinder. Cutting with a metal saw might have been easier!Trimming the edge with 3/8 pipe and adding a few bolts to hold a removable grate (steak anyone?) and the outcome is a simple, but attractive portable "pit" that contains the fire and prevents it from burning down into the ground.

As for the gas line? In plastic pipe? 6 to 8 inches below the surface? Sounds like standing in a bathtub while checking fuses... some things just don't mix!
Brent Leier
31 Oct 2008, 17:44
Something else to consider when using stones around heat is not to use ones that naturally contain air pockets as these can explode under certain conditions when heated. Maybe you can expand on this, no pun intended.
Scott Miller
19 Jan 2009, 09:27
I live in Port Mansfield, Texas. I have to issues. 1. our house direction is north and south and our back yard is enclosed by the mobile home, our lounging area for our customers and a center block storage room and on top of that, we have have about 10ft of fence that encloses the whole yard, to protect my wife's roses and such from the deer and harsh south east winds. After giving details, I assume it just isn't possible to have a fire pit is it? I bought a south Texas "chimonia", we used it, and we smoked ourselves out of the back yard a few times. What or how can we enjoy a small fire during the evenings?
Tom Fuschetto
07 Apr 2009, 19:34
This summer I'm planing to build a pergola in my back yard. The other part of my plan was to put a fire pit under the pergola. I realize that this is probably a bad idea, but is 10 ft of clearence enough to not cause the pergola to burn or should I think of another idea?
John Titor
29 Jul 2009, 23:57
Brent Leier: did you get that from the anarchist cookbook?
jess
06 Nov 2009, 18:29
We too have been wanting to build a fire pit in our backyard. We have a lot of land so don't really know where to put it and what kind of design we are after. There are so many to choose from. The information and tips you have given are great and I have found some ideas on your site, as well as at http://www.yardshare.com. You can load pictures of your projects once they are done, even before and after pictures. Thanks again for the tips, especially the safety tips. Can never have too many of those!
Bill Mansker
18 Jan 2010, 10:31
I have a fire pit built into the deck around my swimming pool, its a 1/2" thick steel recessed into the ground about a foot and extends 18" above the pool deck, my problem is that I used brick around the outside of the steel and it is now falling off, after 15 years. My thought is to replace it with river rock but I don't want to add a lot of thickness to it, and was thinking man made stone. Has anyone done this? And what kind of result did they have. I also installed a gas fire starter when I built it and have been thinking about fake fire logs, I'd miss the real fire but my wife would use it more if she did not have to carry wood to the deck!
Thanks for any and all ideas!
Tom Boyle
16 Feb 2010, 11:05
Bill Mansker:
We have used man made stone many times and it works very well. We also have fire log kits that look great and glass also. Our gas burner gets a huge 24" flame with only 60K BTU so your wife can click a remote control and enjoy a beautiful fire with no mess! Visit us at Warming-Trends.com and contact me personally.Hope this helps!!

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