VI Venting

Vent installation must be in accordance with local building codes, or the local authority having jurisdiction.

Typical vent installation is illustrated by Figure 9. The components of vent installation are the vent connector (breeching), barometric draft regulator, and chimney.

1)Acceptable Chimneys - The following chimneys may be used to vent a TWZ series boiler:

Listed Type L vent - Install in accordance with the manufacturer’s instructions, the terms of its listing, and applicable codes.

Masonry Chimney - The masonry chimney must be constructed in accordance with the latest edition of Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances (NFPA 211) and lined with a clay liner or other listed lining system. Do not vent a TWZ series boiler into an unlined chimney.

2)Acceptable Vent Connectors - The following may be used for vent connectors:

Listed Type L vent.

Single Wall Galvanized Pipe - Use 0.018” (26 gauge) or heavier.

FIGURE 9: TYPICAL VENT SYSTEM

INSTALLATION AND COMPONENTS

3)Chimney and Vent Connector Sizing - See Table 2 for minimum vent connector and chimney sizing. The vent connector size must not be smaller than boiler flue collar diameter. Where two or more appliances vent into a common vent, the cross-sectional area of the common vent should at least equal the area of largest vent plus 50% of the area in the additional vents.

4)Do not vent this appliance into any portion of a mechanical vent system operating under positive pressure.

5)Do not connect the boiler into a chimney flue serving an open fireplace or other solid fuel appliance.

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Crown Boiler TWZ090, TWZ200, TWZ125, TWZ065, TWZ175, TWZ150, TWZ100, TWZ120, TWZ075 installation instructions VI Venting, 109

TWZ150, TWZ125, TWZ065, TWZ075, TWZ100 specifications

Crown Boiler, known for its solid and reliable heating solutions, has designed the TWZ series to provide effective heating for both residential and commercial applications. The models in this series—TWZ090, TWZ120, TWZ175, TWZ200, and TWZ100—offer varying capacities and features tailored to meet diverse heating needs.

One of the key features of the TWZ series is its efficiency. These boilers are designed with a cast-iron heat exchanger that maximizes thermal efficiency, allowing for optimal heat transfer. This not only helps in reducing energy consumption but also ensures that the home remains warm and comfortable during the colder months. With an annual fuel utilization efficiency (AFUE) rating that can reach up to 85%, users can expect lower energy bills as well.

Each model in the TWZ series is equipped with a durable and robust construction. The cast iron sections provide increased resistance to wear and tear, making the TWZ series a long-lasting solution for heating needs. This is particularly beneficial for users looking for reliability over time, as the longevity of these boilers reduces the need for frequent replacements.

In terms of technology, the TWZ series features advanced controls that enhance functionality and ease of use. These boilers are compatible with various heating control systems, allowing users to fine-tune their heating setup according to their specific requirements. The inclusion of a flame safeguard system further ensures safety during operation, reducing the risk of malfunctions and improving overall reliability.

The TWZ series is designed for easy installation and maintenance. With options for direct venting or conventional chimney venting, homeowners and installers can choose the most suitable configuration for their properties. Additionally, the maintenance access points on these boilers make routine service checks simple and efficient, ensuring that the boilers remain in optimal condition.

Another important characteristic of the Crown Boiler TWZ series is its quiet operation. Advanced engineering minimizes noise production, making these boilers ideal for residential settings where peace and comfort are valuable.

In conclusion, the Crown Boiler TWZ090, TWZ120, TWZ175, TWZ200, and TWZ100 models offer a compelling combination of efficiency, durability, advanced technology, and user-friendly features. Whether for residential or light commercial use, they represent an excellent choice for anyone seeking reliable heating solutions.