The Fireplace Chamber – an overview
The fireplace chamber (where the fire or stove is located) is an important but often overlooked part of the fireplace.
Choosing the surround and hearth is much more fun! However, the interior is actually one of the largest areas on view and is especially noticeable when the fire is not lit. It doesn’t matter what kind of fire you have in the chamber, the finish you choose will still play an integral part in the overall appearance of your fireplace.
The finish you choose essentially has three functions;
- Protection
- Decorative
- Heat radiation
There are numerous types of finish available to you and they will perform these functions in different ways. Below is a list of some of the options you have that should assist you in making your decision.
Fireplace chamber – brick
This is the simplest option if the internal brickwork of your chamber is in good order. Having the bricks cleaned up and leaving them exposed can work either for a rustic setting or also in a contemporary one, as shown in this room setting here. The bricks will still radiate minimal heat back into the room.
Fireplace chamber – render
We would not recommend using a standard plaster render as this will not withstand the heat from your fire (even when using a wood burner). Cracks will appear and the plaster will become “blown” very quickly and it will ruin the look.
However, there are specialist fireplace renders available. Vitcas is an example if you are installing yourself, otherwise your fitter will use one that is suitable. Rendering is a great option is you want a totally smooth finish to your chamber.
After rendering, it is possible to have the interior painted entirely in black (using heat resistant paint). This is also possible over exposed brick work.
Fireplace chamber – lining
Another simple and easy way to complete the chamber is to line the inside with fire boards. These are made from vermiculite which, when treated, can withstand temperatures of over 1,000C. Our standard version is ribbed, painted black that looks very smart and is our most popular finish.
There are also fire boards that come in other designs and colours. The faux brick design with arch and returns is popular for the classic or rustic look, or if you prefer a more neutral, contemporary style, go for the plainer boards. There are a selection of other boards at the very bottom of this page.

Fireplace chamber – panels
Cast iron panels are available and are extremely durable. These can also be used as a solitary back panel. These are great at radiating heat and offer the most protection to the interior. They usually the most expensive option. The back plate below is an ornate version, but they are also available plain or ribbed.
Fireplace chamber – tiles
Using stone slabs or tiles will also work and these can continue emanating heat from the fire long after it has gone out. Stone slabs can be a good alternative if you do not want a dark chamber as well.
As ever, when it comes to design it is personal taste. The style of fire surround, the type of fire, the decor in your room, all play a part in making your final choice for the fireplace chamber. Your decision could also be affected once you have had a site survey. As each fireplace is unique, something could be revealed that may limit your choices – e.g. the original brickwork has deteriorated too much and heat exposure could cause further damage if not treated.
If you have any questions about the interior of your chamber, or if you would like to book a survey, feel free to get in touch. I’ll be glad to assist you.
Here are a few more design options when it comes to the lining for your fireplace chamber;

Block fireboard

Red stock brick effect

Charcoal slate effect

Smooth buff effect

Riven limestone effect

Cobble lavender effect
Remember, if you would like any guidance whatsoever about your fireplace chamber, or your project in general, simply call 01730 897 600

