construction, air for combustion and ventilation must be obtained from outdoors or from spaces freely communicating with the outdoors. A permanent opening or openings having a total free area of not less than 1 square inch per 5,000 BTU per hour of total input rating of all appliances shall be provided. Ducts may be used to convey makeup air from the outdoors and shall have the same cross-sectional area of the openings to which they are connected.

4.When air for combustion and ventilation is from inside buildings, the confined space shall be provided with two permanent openings, one starting 12 inches from the top and one 12 inches from the bottom of the enclosed space. Each opening shall have a minimum free area of 1 square inch per one thousand (1000) BTU per hour of the total input rating of all appliances in the enclosed space, but must not be less than one hundred (100) square inches. These openings must freely communicate directly with other spaces of sufficient volume so that the combined volume of all spaces meets the criteria for an unconfined space.

5.When the boiler is installed in a confined space and all air is provided from the outdoors the confined space shall be provided with one or two permanent openings according to methods A or B. When ducts are used, they shall be of the same cross sectional area as the free area of the area of the openings to which they connect. The minimum dimension of rectangular air ducts shall be not less than 3 x 3 inches or 9 square inches.

A. When installing two openings, one must commence within 12 inches from the top and the other within 12 inches from the bottom of the enclosure. The openings shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. One of the following methods must be used to provide adequate air for ventilation and combustion.

1.When directly communicating with the outdoors, each opening shall have a minimum free area of 1 square inch per 4,000 BTU per hour of total input rating of all equipment in the enclosure. See figure 2 below.

FIGURE 1

FIGURE 2

2.When communicating with the outdoors by means of vertical ducts, each opening shall have a minimum free area 1 square inch per 4,000 BTU per hour of total input rating of all appliances in the enclosed space. See figure 3 on page 6.

3.If horizontal ducts are used, each opening and duct shall have a minimum free area 1 square inch per 2,000 BTU per hour of total input rating of all appliances in the enclosed space. See figure 4 on page 6.

B.One permanent opening, commencing within 12 inches of the top of the enclosure,

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Utica Gas-fired Boiler manual
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Gas-fired Boiler specifications

The Utica Gas-fired Boiler is a highly efficient heating solution designed for residential and commercial applications. Recognized for its reliability and durability, the Utica Gas-fired Boiler utilizes gas as a clean energy source, which not only reduces emissions but also lowers operational costs. With various models available, this boiler caters to a wide range of heating needs, making it a versatile choice for different environments.

One of the main features of the Utica Gas-fired Boiler is its impressive energy efficiency. Many models are equipped with advanced combustion technology that ensures optimal fuel utilization, resulting in lower gas consumption and environmental impact. This efficiency is often reflected in high AFUE (Annual Fuel Utilization Efficiency) ratings, confirming the boiler's ability to convert a significant portion of fuel into usable heat.

The Utica Gas-fired Boiler employs a diversified product line, which includes both steam and hot water boiler systems. This flexibility allows users to choose the system that best suits their heating requirements. Additionally, the boilers are designed with user-friendly controls that facilitate easy operation and maintenance.

In terms of technology, Utica integrates multiple innovative features into their gas-fired boilers. The use of a modulating gas valve enables the boiler to adjust its output to match the heating demand, promoting energy efficiency and comfort. Many models also utilize a sealed combustion design that pulls in outside air for combustion, enhancing safety and improving performance in tightly sealed homes.

Moreover, the construction of Utica Gas-fired Boilers emphasizes durability. They are built from high-quality materials like cast iron or stainless steel, ensuring a long lifespan and resistance to corrosion. The robust design also facilitates easy servicing, with accessible components that minimize downtime in the event of maintenance or repairs.

Safety is another critical aspect of the Utica Gas-fired Boiler design. Features such as built-in safety controls, pressure relief valves, and flame rollout switches contribute to a safer operating environment.

In conclusion, the Utica Gas-fired Boiler exemplifies an exceptional heating solution characterized by efficiency, flexibility, and durability. With advanced technologies and a strong commitment to safety, it remains a preferred choice for those seeking reliable heating options for their spaces. The combination of low emissions, high performance, and user-friendly operation makes it ideal for modern heating applications.
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