Ventilation AIR

AIR FOR COMBUSTION AND VENTILATION

Continued

Ventilation Air from Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 3). Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts. You can also remove door into adjoining room (see option 3, Figure 3).

WARNING

Re-calculate work sheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.

			12"
Ventilation			Ventilation Grills
Grills			Ventilation Grills
Into Adjoining	Or		Into Adjoining Room,
Room,	Or		Option 2
Room,	Remove		Option 2
Option 1	Remove		¢QQQ,,¢¢,
Option 1	Door into
	Door into
	Adjoining
	Room,	12"
	3	12"
	Option

Figure 3 - Ventilation Air from Inside Building

Ventilation Air from Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code NFPA 54/ ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts. IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.

Ventilated

Outlet Attic

Air

Outlet
Air	To Attic
	To Attic

Crawl

Space

Inlet

Air

Inlet Air		Ventilated
Inlet Air		Crawl Space
		Crawl Space

Figure 4 - Ventilation Air from Outdoors

101969

UNVENTED (VENT-FREE) PROPANE GAS FIREPLACE specifications

Desa Unvented (Vent-Free) Propane Gas Fireplaces offer a unique and efficient way to provide warmth and ambiance to any living space, without the need for traditional venting systems. These fireplaces are designed to burn propane gas cleanly and efficiently, thus eliminating the need for chimneys or flues. One of the key features of the Desa Unvented propane gas fireplace is its ability to operate without exhausting combustion gases outside, making it an ideal choice for homeowners with limited installation options.

Equipped with advanced safety features, these fireplaces come with oxygen depletion sensors that automatically shut off the unit if oxygen levels in the room decrease to unsafe levels. This ensures peace of mind for users, as safety is a top priority when it comes to heating solutions.

Energy efficiency is another significant aspect of the Desa Unvented propane gas fireplace. These units convert almost all of the fuel they burn into usable heat, which translates into lower energy bills and a smaller carbon footprint. The fireplaces also have adjustable flame settings, allowing users to customize their heating needs according to the room's size and desired warmth.

Aesthetic appeal is paramount in any home heating solution, and Desa offers a variety of styles and designs to suit different interior decors. Whether you prefer a classic look with ceramic logs and glowing embers or a contemporary clean-burning design, there is a model to meet your preferences. With remote control options available, users can easily adjust the heat and flame settings from the comfort of their couch.

Installation is hassle-free, as these units do not require complex venting. This flexibility allows homeowners to place the fireplace in various locations, ensuring that any room can benefit from the charm and warmth of a gas fire. With the additional option to incorporate a wall-mounted thermostat, users can maximize efficiency while maintaining the ideal room temperature.

In summary, the Desa Unvented propane gas fireplace combines safety, efficiency, and style, making it an attractive option for those looking to enhance their home environment. Its innovative technology and user-friendly features set it apart as a reliable and aesthetically pleasing heating solution.

Desa UNVENTED (VENT-FREE) PROPANE GAS FIREPLACE Ventilation AIR, Ventilation Air from Outdoors

Models: UNVENTED (VENT-FREE) PROPANE GAS FIREPLACE