SERVICE

HINTS

REPLACEMENT PARTS

SERVICE PUBLICATIONS

ACCESSORY

When gas pressure is too low

pilot will not stay lit

burner(s) will have delayed ignition

heater will not produce specified heat

When gas quality is bad

pilot will not stay lit

burner(s) will produce flames and soot

heater will backfire when lit

You may feel your gas pressure is too low or gas quality is bad. If so, contact your local natural gas supplier.

Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.

Parts Under Warranty

Contact authorized dealer from whom you purchased this product. If they cannot supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-323-5190 for referral information.

When contacting your dealer or DESA International, have ready:

your name

your address

model number of your heater

how heater was malfunctioning

type of gas used (propane or natural gas)

purchase date

Usually, we will ask you to return the defective part to the factory.

Parts Not Under Warranty

Contact authorized dealers of this product. If they cannot supply original replace- ment part(s), call DESA International’s Parts Department at 1-800-972-7879 for information.

When calling DESA International, have ready:

model number of your heater

the replacement part number

You can purchase a service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA International.

Purchase this heater accessory from your local dealer. If they cannot supply this accessory, call DESA International’s Parts Department at 1-800-972-7879 for information. You can also write to the address listed on

the back page of this manual.

MANUAL SHUTOFF

VALVE - GA5010

Manual shutoff valve with 1/8"

NPT tap.

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Vanguard Heating VN6B, VN12A installation manual Parts Under Warranty, Parts Not Under Warranty, Valve GA5010

VN6B, VN12A specifications

The Vanguard Heating VN6B and VN12A represent cutting-edge solutions in residential heating technology. Designed to meet a variety of heating needs, these systems combine efficiency and user-friendly features, catering to an increasingly eco-conscious market.

The VN6B model is ideal for smaller homes or spaces, boasting a compact design without sacrificing power. It uses advanced condensing technology, which allows it to achieve impressive efficiency ratings. With an Annual Fuel Utilization Efficiency (AFUE) of up to 96%, the VN6B maximizes heat output while minimizing fuel consumption. This leads to significant cost savings on heating bills, making it an attractive choice for homeowners looking to upgrade their heating systems.

Meanwhile, the VN12A is built for larger areas, providing robust heating solutions for bigger residential spaces. With similar condensing technology, it features an AFUE rating that matches its smaller counterpart, ensuring that it also operates with remarkable efficiency. The VN12A is engineered with a modulating burner, which adjusts the flame size according to the building’s heating needs. This means it can operate quietly and smoothly, offering comfort without the jarring temperature fluctuations that other systems may create.

Both models incorporate innovative safety features, including a built-in flue gas condensation sensor that ensures safe operation under varied conditions. Additionally, they include a user-friendly digital thermostat, which enables precise temperature control and can be programmed for optimal efficiency. Homeowners can easily customize their heating schedule, making it convenient to maintain a comfortable living environment while also conserving energy.

Another notable characteristic of the Vanguard VN6B and VN12A is their durable construction. Made from high-quality materials, these heating units are designed to withstand wear and tear, ensuring a long lifespan with minimal maintenance. Regular maintenance reminders are a feature, making it straightforward for homeowners to keep track of service needs.

In summary, the Vanguard Heating VN6B and VN12A models stand out in the market for their exceptional efficiency, smart technologies, and user-centric features. They are excellent choices for homeowners seeking reliable and environmentally friendly heating solutions that promise comfort year-round, all while keeping energy costs low.