R N I N G, Example | Vermont Casting 4030

UVS27 Vent-Free Gas Heater

Example:

A room that is 18’ x 12’ x 8’ has a volume of 1728 cubic feet, ( length x width x height). An adjoining open kitchen that is 10’ x 12’ x 8’ has a volume of 960 cubic feet. An adjoining open dining room is 12’ x 12’ x 8’ with a volume of 1152 cubic feet. The total space volume is 3840 cubic feet. (1728 + 960 + 1152).

2.Divide the volume of space by 50 cubic feet. The result is the maximum BTU/Hr that the space can sup- port.

Example:

3840 divided by 50 = 76.8 or 76,800 BTU/Hr.

3.Add the BTU/Hr ratings of all fuel-burning appliances installed in the same space, including the following:

Gas Water Heater	Gas Furnace
Gas Fireplace Logs	Unvented Gas Heater
Vented Gas Heater*	Other Gas Appliances*

*Do not include Direct Vent appliances as these utilize outside air for combustion and vent to the outdoors.

Example:

Gas Range	55,000 BTU/Hr
Unvented Heater	+33,000	BTU/Hr
Total	88,000	BTU/Hr

4.Compare the maximum BTU/Hr rating the space can support with the total BTU/Hr used by the appliances.

Example:

76,800 BTU/Hr - max. the space can support

88,000 BTU/Hr - total used by appliances

In this example, the maximum BTU/Hr that the space can support is less than the total used by the appli- ances, the space is considered to be Conﬁned space. Additional air must be provided to meet the require- ments of the Unvented heater.

A conﬁned space may be ventilated in two ways:

A)Open up or provide at least two ventilating grilles to an adjoining unconﬁned space. Use any of the options illustrated in Figure 3.

Each of the two grilles must provide an opening of at least 50 square inches, with all opening dimensions being at least 3”. One grille must be located within 12” of the ceiling; the other within 12” of the ﬂoor. (If the total exceeds 100,000 BTU/Hr, additional grilles will be required.)

B)Vent the room directly to the outdoors. (Provide one square inch of opening for each 4,000 BTU/hr.

If the total BTU/Hr used by the appliances is less than the maximum BTU/Hr the space is able to support, the room meets the Unconﬁned space criteria and no further ventilation is required.

For further information on ventilation guidelines and sizing speciﬁcations follow the National Fuel Gas Code NFPA 54/ANSI Z223.1 Section 5.3.

W A R N I N G

This heater shall not be installed in a conﬁned space or unusually tight construction unless provisions are made for adequate combustion and ventilation air.

W A R N I N G

If the area in which the heater may be operated is smaller than that deﬁned as an unconﬁned spaceof if the building is of unusually tight constructins, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/ NFPA 54, Section 5.3 or applicable codes.

Option 1 Vents to Ad- joining Room

12”

Option 3 -

Vents to

Adjoining

Room

	Option 2
	- Remove
	Door to	12”
	Adjoining	12”
	Adjoining
	Rooms

VO370-2

Fig. 3 Vent options to provide additional air.

20007068

4030 - 4049 specifications

Vermont Castings is renowned for its commitment to producing high-quality wood and gas stoves, fireplace inserts, and outdoor grills. Among their esteemed lineup, the Vermont Castings 4030 and 4049 models showcase a blend of traditional craftsmanship and modern technology, epitomizing the brand's philosophy of combining functionality with aesthetics.

The Vermont Castings 4030 is particularly celebrated for its efficiency and robust design. One of its standout features is the advanced catalyst system that allows for cleaner burning and reduced emissions. The stove operates with a specially designed catalytic combustor, enhancing the combustion process and increasing overall efficiency. This results in longer burn times and a warmer, cozier atmosphere with less frequent refueling.

The 4049 model builds upon this foundation, delivering enhanced heating capacity suitable for larger spaces. It boasts a high BTU output, ensuring that even expansive areas remain comfortably warm during the coldest months. One of the defining characteristics of the 4049 is its impressive ability to provide a long-lasting heat source, thanks to its large firebox and innovative design.

Both models feature a beautiful cast iron construction, which not only exudes an old-world charm but also allows for superior heat retention. This heavy-duty material ensures that once heated, the stoves radiate warmth over a long period, making them efficient choices for home heating.

A unique feature found in both models is the air wash system. This technology keeps the glass panel clean, allowing homeowners to enjoy the mesmerizing view of the flames without worrying about soot buildup. The stoves are also designed with adjustable airflow controls, giving users the ability to fine-tune the heat output and fuel efficiency according to their preferences.

Aesthetically, the Vermont Castings 4030 and 4049 are designed to complement a variety of home decors, featuring multiple finishes and door styles to suit individual tastes. The craftsmanship extends to decorative features, including embossed designs that add elegance to any room.

In summary, Vermont Castings 4030 and 4049 are exemplary models that embody the brand's dedication to quality. Their advanced technologies, efficient heating systems, and timeless designs make them ideal choices for homeowners seeking both functionality and beauty in their heating solutions. Whether you're looking for a reliable source of warmth or an impressive centerpiece for your living space, these stoves represent an investment in comfort and style.