When you want to build a outdoor fireplace, you should consider views from the house, focal points, privacy, screening and prevailing wind (direction that wind blows from most often) when deciding where to set this large permanent structure.  Remember this large piece of furniture will match the garden area. 
Seating Considerations
We should take patio areas into account for it is next to fireplaces and should be big enough to meet today's larger "deeper seating" style of outdoor patio furniture. Do not set overlarge patio areas for you will lack enough area for plants and flowers. Some householders will prefer some couch style or large lounge chairs adjacent to their fireplace.
You can also make a balance between softscape and greenery with your hardscape requirements. Outdoor living room patios should be large enough to meet typical furniture layouts and a walk-about pathway, but not too overlarge. For this will leave enough space in the garden for some greenery. There is a minimum area of 12 feet by 12 feet and a maximum of 18 feet by 18 feet for the patio size.

Gas Only or Wood Burning Fireplaces？
When you want to set a fireplace in the yard, the first thing you should consider is what type of ourdoor fireplace you want. Do you want to burn wood logs or only faux logs with a gas flame. The construction and code requirements differ largely between the two and in some fire-hazard regions, wood burning is prohibited near slopes, or at all  out of the consideration of safety. And also wood burning fire features need a "spark arrestor" to decrease hot sparks from igniting your neighbor's home by accident. 
Placement of an Outdoor Fireplace
Since the region guidelines differ from city to city, but in most restrict the distance you can build a fireplace to the existing home will have a side and rear propety line setback guidelines. What's more, many regions have some more regulations  in relation to slope setbacks and restrictions of height of taller structures on view lots. Make sure and ask the local 
City Planning Office to ensure appropriate locations of your outdoor fireplace construction before you begin your designs. 

Do you stay inside on those cool spring and fall days when it’s a bit chilly? If you had an outdoor fireplace you probably wouldn’t! What about in the heart of summer when the sun goes down and it feels surprisingly cool? Do you call it a night and go inside? Wouldn’t it be nice to enjoy your outdoor living space longer? Outdoor fireplaces are good items for you.
Outdoor fireplaces keep to enjoy popularity with the outdoor room boom fueling the fire, for outdoor fireplaces make your deck or patio more inviting, stylish and comfortable. There are more and more magazines and web-publishers publishing photos of large stone fireplaces to attract customers and more and more housewives are now requiring fireplaces, not that type of fire pits in their outdoor living rooms.
The outdoor fireplace will create a kind of romantic atmosphere out of your house. The glow of the flickering flame invites guests to sit down, relax and enjoy life. Properly designed fire features will make people active to talk with each other. Design and installation of these popular features can be lucrative, but make sure to teach yourself on the proper construction techniques beforehand to avoid some mistakes.

Choosing a Design
When choosing a fireplace, you should fit in scale with the size of the home.  I often look to the architecture of the main home for details to replicate on my fireplace.
Is there stone or stucco on the house that we can match?
Architectural elements that I can bring down into the shape of my mantle or chimney?
For help with fireplace design ideas visit The Concrete Network's backyard fireplace photo gallery and browse through hundreds of outdoor fireplace perspectives.
Chimney Considerations
Wood burning outdoor fireplaces will cause a lot of smoke. Code requires that chimney height be 2 feet taller than adjacent structures like patio covers and homes, so plan accordingly.
Getting a fireplace to draw properly outdoors has its challenges. Indoors you control the air flow and fireplace chimneys draw easily due to buoyancy (action of the hot smoke rising in the flue because it weighs less than cool air). Outdoors the slightest wind can downdraft your fireplace and force smoke forward of the hearth. To reduce this, a "smoke shelf" must be designed into all wood burning fireplaces, your flue sizing must be calculated properly, and chimney height must be tall enough to encourage proper draw.

Nothing goes better of fixing an outdoor living room than a real outdoor fireplace. Garden Artisan Scott Cohen will share his design and construction insights with us from his high-end residential experience for more than 20 years in this article.

This article will help you understand the key questions when choosing and installing an outdoor fireplace.

Outdoor fireplaces continue to enjoy popularity with the outdoor room boom fueling the fire. You can usually see beautiful photos of large stone fireplaces in Magazines and web-publishers and a lot of homeowners are now beginning to require fire places, and the not fire pits in their outdoor living rooms cannot satisfy them.

There is a certain romantic atmosphere that surrounds an outdoor fireplace. The glow of the flickering flame invites guests to sit down, relax and enjoy life. Properly designed fire features make people have a real conversation and expose their real inner world. Design and installation of these popular features can be lucrative, but make sure to teach yourself on the proper construction techniques before you begin to install them thus costly mistakes can be avoided.