2.Through the ceiling/roof (see fig.3) or through a sidewall (see fig. 4). Type B-1 vent pipe (inch min. diameter) may be used when venting vertically through the roof, provided a one inch minimum clearance to combustible material is maintained throughout and the vent terminates into a listed wind cap above the roof.

3.Vented freely into the room or space where it is installed, provided that:

a)A Mechanical exhaust system is present in the space where the booster heater is installed.

b)An electrical interlock is provided (by others) so that the booster will not fire if the exhaust system is not providing adequate ventilation to the area.

c)The total BTU input rating of all the unvented gas appliances installed divided by

the total cubic foot volume of the room area (including any adjacent areas that cannot be physically closed off from the installation area) does not exceed 20 BTU’s per hour per cubic foot of space.

For sidewall venting, the booster heater should be located as close as possible to the wall being used. The minimum and maximum wall thickness is determined by the wall thimble available from the vent manufacturer. Refer to the vent manufacturer’s installation instructions.

All horizontal runs of vent pipe must have a minimum rise of 1/4 inch per foot of length and must be supported every 5 feet or less (3 feet in Canada) and at every elbow.

For horizontal venting: The total length of approved 4 inch diameter vent pipe can be a maximum of 40 feet, including two 90 degree elbows and one termination vent. For each elbow above two, reduce the total allowable vent length by ten feet. Minimum horizontal vent length is 2 feet.

For vertical venting: The maximum length of approved 4 inch diameter vent pipe is the same as above; the same requirements for elbows and termination vent apply; the minimum length for vertical venting is 5 feet. An auxiliary power vent kit is available for installations where the vent length must exceed these lengths. Call the factory for assistance. Additional requirements when venting through a sidewall:

-The vent terminal shall be located at least three feet above any forced air inlet located within ten feet; at least four feet below and four feet horizontally from, or one foot above

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Vanguard Heating PM200, PM400 operation manual
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PM200, PM400 specifications

The Vanguard Heating PM200 and PM400 models represent a significant advancement in the world of heating solutions, designed specifically to provide efficient and effective warmth to various spaces. These heating units are renowned for their performance, reliability, and innovative features, making them ideal for both residential and commercial applications.

The PM200 is a compact yet powerful heating solution that delivers an impressive 200,000 BTU output. This model is particularly favored for smaller spaces or areas where precise heating is required. One of its standout features is its user-friendly digital thermostat, allowing for easy temperature adjustments and precise control over heating schedules. This digital interface enhances user experience, providing necessary information at a glance and facilitating efficient energy usage.

On the other hand, the PM400 offers an even more robust heating capacity, with an output of 400,000 BTU. This model is designed for larger spaces or commercial environments that demand higher heating output. Both units come equipped with advanced technology that allows them to operate efficiently while minimizing energy consumption. The high-efficiency heat exchangers used in both models are engineered to maximize heat transfer, ensuring that energy is used judiciously.

Vanguard Heating has also incorporated safety features into the PM200 and PM400 to enhance user protection. Each unit comes with an integrated overheat protection system, ensuring that operations are safe even during extended usage. Additionally, the units are designed with durable materials that contribute to their longevity, minimizing the need for frequent replacements or repairs.

Both models are versatile, allowing for various installation methods, including wall-mounted or freestanding configurations. This adaptability ensures that they can fit seamlessly into any space without disrupting the overall aesthetic.

Moreover, the PM200 and PM400 units are engineered for quiet operation, which is a crucial feature for both residential and commercial settings. Their design ensures that they do not become a source of distraction, allowing users to enjoy a comfortable environment without the accompanying noise often associated with traditional heating systems.

In summary, Vanguard Heating PM200 and PM400 models are excellent choices for those seeking reliable, efficient, and user-friendly heating solutions. With their range of features and technologies, they continue to set the standard in the heating industry, ensuring users enjoy optimal comfort in any setting.
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