Here's an overview of what fireboxes are and why they're important. We'll also cover what they are made from, how they're installed, and how to choose the best one for your home. You can also see our list of the top five brands we recommend.
A fireplace fire box is the structure that contains the fire and holds your wood or gas fuel. In other words, the firebox is just a box. It doesn't include the fuel source like a gas log set or burner.
All fireplaces (including gas, wood-burning, and pellet stoves) contain a fire box. With open wood-burning fireplaces, the firebox is pretty much all there is. The chimney is separate from the fireplace box, but it is the fireplace box that holds the wood and contains the fire. In this case, "firebox" and "fireplace" are essentially the same thing. There aren't other components like a gas burner or gas log set, so the firebox is all there is besides the venting.
Gas fireplaces are a bit more complicated. A gas fireplace includes a "firebox" by design (the area that houses the fire) and a gas log set or fire glass set and burner to create the flame effect. In the case of a gas fireplace, referencing the fire box is just speaking to the area where combustion will occur. Referring to the fireplace itself is talking about the entire unit, including the firebox, gas burner, and log or glass set.
Again, the term firebox refers to the box or opening that contains the fire. A wood-burning fireplace is only composed of a firebox and chimney components. So in the case of wood burning, firebox and fireplace are essentially the same things.
The purpose of a firebox is to provide protection. It keeps smoke and hot gases from seeping into the walls and igniting wood beams within the walls. The firebox also keeps any water from leaking into the walls or floor.
A cracked or damaged fire box is a fire hazard and could also allow water to damage your home. If you notice crumbling mortar or suspect that the firebox could be damaged, have it inspected or arrange to replace it right away. Visible cracks in the firebox also signal that it's time for a replacement. While some cracks can be patched and repaired, the long-term solution is a replacement.
Open wood-burning fireboxes are ideal if you don't want to have a masonry fireplace built on site. If converting to gas, it's possible to use vent-free gas logs, but keep in mind that the chimney will lower the heating efficiency. If efficient heat is a high priority, opt for a gas fireplace box model specifically designed for vent-free use.
The term "firebox" is most common when referring to gas appliances. It houses the vent-free gas logs or glass set, but these are sold separately. The fireboxes come as a metal enclosure with a flat floor and will occasionally have a decorative liner or blower. The Monessen 36 Inch Lo-Rider Clean Face Vent Free Gas Firebox is one example and here's another vent-free model. Note that they will not come with a burner, as these are also sold separately.
These metal fireboxes are made to be framed into a wall and are for vent-free applications only. Because direct vent fireplaces and b-vent fireplaces are designed for use with a specific vent system and diameter, they will always be supplied with their own burner system.
When buying a replacement firebox or shopping for a gas log set, start by measuring the dimensions of the current firebox. You will need to measure the front width, back width, height, and depth of the firebox.
Both wood-burning and gas fireboxes usually ship via LTL freight. The freight company will schedule a delivery time that works with your schedule. They often require two or more people to accept the delivery.
Fireboxes provide a way to buy exactly what you need to customize your fireplace. The wood-burning fireboxes save the extra expense of building a masonry fireplace on-site. The gas fireboxes allow you to purchase or replace the firebox without buying the gas burner or log sets. This is ideal if you already have the gas burner or want more gas log options.
This grate goes in the bottom of the firebox of our grills and smokers, as well as our campers and single-lid grills. It promotes better airflow and helps to prevent burnout in the bottom of the firebox or grill. Below are the prices for our current standard sizes.
Front width: the front width of your firebox needs to have 2-6 inches of clearance on both sides of the gas log set. This allows for proper airflow and room for your gas logs to operate.
Rear width: the rear width of your firebox needs to be at least as long as your gas logs. For example, if your gas log set is 18 inches, then the rear width measurement of your firebox needs to be at least 18 inches.
Many get confused by the differences between a firebox vs. fireplace. The two are very similar but think of the fireplace as a general term for all the interior chimney components such as the damper, hearth, facing, mantel, and firebox. The box is simply one of the many components in the fireplace. They are intertwined in the same system, not separate from one another.
Decorative brick firebox panels are found in factory-built fireplaces. In lieu of the fire brick and mortar assembly fireboxes found in masonry systems, factory-built systems frequently feature a large ceramic panel that is textured in a way to simulate a faux brick pattern.
Steel boxes were manufactured with the intent of being installed in a real brick chimney in lieu of a firebrick firebox. The hope was that having hollow cavities and ducts would allow the fire to heat up the small metal box on the outside. And through convection and the blowers, air would travel through the hollow walls and smoke chamber and exit out the sides of the brick fireplace.
With annual maintenance, cleanings, and repair investments, your masonry firebox will last forever. A prefab unit, however, is not designed to last forever. It varies from 10 to 30 years, depending on your usage, amount of maintenance, and if the technician installed it correctly.
Prefab fireboxes need replacements because they protect the exterior combustibles. When refractory panels start to crack or rust, it exposes the combustibles to high heat from the fire. A cracked firebox in a fireplace constitutes a significant fire hazard and needs repair immediately.
When a prefab system is well-maintained, it will last you a long time. But whether it be due to water leaks, excessively large fires, or natural aging, your fireplaces firebox panels will inevitably fail.
With dangers of catching combustibles and your home on fire, cracks in your fireplace firebox should be taken seriously. That is why you need to schedule annual inspections with a certified chimney sweep!
Now to the ultimate question of, how much does a firebox cost? A new fire-box by itself costs around $500 on most retail websites. A new construction project for building a firebox for your fireplace will include a price increase to cover professional installation and labor fees. Minimal repair cost for damages such as cracking varies depending on the severity.
Park quality construction: 1/8-inch thick steel plate firebox plus 1/2-inch and 3/8-inch diameter solid steel bars for the cooking grate. The grate bars are welded on both sides. The firebox and grate are fully assembled.
Larger Cooking area: The firebox measures 24 x 16-inches to provide 384 sq. inches of total cooking area. This includes an 8 x 16-inch hot plate section. The 10-inch high sides provide wind and draft control. 041b061a72