FRESH AIR FOR

Example 2: Locating Heater in Confined (Closed) Area

COMBUSTION

 

 

 

 

 

NOTICE

 

AND

 

 

 

 

 

A confined area has an air volume of less than 50 cubic

 

VENTILATION

 

feet for each 1000 BTU/Hr input rating of all appliances

 

 

in the area (cubic feet equals length x width x height of

 

Continued

 

area). Include adjoining rooms only if there are no doors

 

 

 

between the rooms.

 

 

 

 

 

 

 

If you install this heater in a confined area, you must provide additional fresh air.

 

Ventilating Confined Area

 

This fresh air would come from an adjoining open area or outdoors.

 

 

 

 

 

 

WARNING

 

 

 

 

 

 

 

The adjoining open area must have enough fresh,

 

 

 

outside air ventilation to supply any appliance in that

 

 

 

area plus the confined area. Follow instructions under

 

 

 

Example 1: Locating Heater in Unconfined (Open) Area,

 

 

 

page 17 to make sure fresh air ventilation is adequate.

 

 

 

 

 

 

When ventilating to an adjoining open area, 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 areas. Follow the National Fuel Gas Code NFPA 54/ANSI

 

Z223.1. It lists fresh-air requirements for fuel-burning appliances.

Ventilation

Grills into

Closet for

Hot Water

Heater

12"

Ventilation Grills

Connecting Two Rooms to Meet Unconfined Space

12"

Recommended

Fresh Air Duct into Crawl Space in Furnace Area or in

Closet with Water Heater

Figure 15 - Ventilation Air from Inside Building

After providing ventilation between rooms, check for draft hood spillage (see Draft

Hood Spillage Test, page 17). If draft hood spillage still occurs, provide more

 

ventilation between rooms or provide permanent ventilation from outdoors. See

 

Providing Permanent Fresh-Air Ventilation, page 18.

19

 

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Vanguard Heating GVB35P, GVB50P installation manual Confined area has an air volume of less than 50 cubic

GVB50P, GVB35P specifications

The Vanguard Heating GVB35P and GVB50P models represent a significant advancement in home heating technology, designed to cater to the needs of residential spaces with varying heating demands. These gas-fired boilers not only ensure optimal warmth but also focus on energy efficiency and user-friendly operation.

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Both models incorporate advanced condensing technology, which significantly enhances their efficiency ratings. By capturing and reusing heat that typically escapes through the flue in traditional boilers, the GVB35P and GVB50P achieve high Annual Fuel Utilization Efficiency (AFUE) ratings. This not only reduces the overall energy bill but also contributes to a lower carbon footprint, making these models an environmentally conscious choice.

The construction of the GVB35P and GVB50P features robust, durable materials aimed at maximizing longevity and reliability. The heat exchangers are designed to withstand high temperatures and pressures, ensuring safety and durability. Additionally, these models are equipped with a modulating gas burner, which allows for precise temperature control and minimizes energy wastage during operation.

User convenience is further enhanced by the inclusion of a built-in digital control system. This allows homeowners to easily adjust the heating settings remotely, ensuring homes are warm upon arrival without requiring constant manual input. Moreover, the low maintenance requirements of these models make them appealing to busy homeowners, as regular service intervals are reduced.

In summary, the Vanguard Heating GVB35P and GVB50P models combine advanced technology, high efficiency, and user-friendly features to deliver exceptional heating performance. Their durable construction, energy-saving capabilities, and modern controls make them an excellent choice for homeowners looking to enhance comfort while minimizing environmental impact. Whether for a small apartment or a larger home, these boilers stand out as a reliable heating solution.