SECTION VII: VENTING AND AIR INTAKE PIPING

A.GENERAL VENTING GUIDELINES

1.Vent system installation must be in accordance with these instructions and applicable provisions of local building codes. Contact local building or fire officials about restrictions and installation inspection in your area.

2.The V8 is designed to be vented into a fireclay tile-lined masonry chimney or chimney constructed from type L vent or a factory built chimney that complies with the type HT requirements of UL103. The chimney and vent pipe shall have a sufficient draft at all times, to assure safe proper operation of the boiler. See Figure 16 for recommended installation.

a.Install a draft regulator (supplied with boiler) following the instructions furnished with the regulator. See Figure 17 for alternate draft regulator locations.

b.For the V82W, V84W and V86W the minimum recommended chimney size from Table 1B

is one size larger than the smokebox outlet. For a vertical vent, place the increaser on the smokebox outlet collar. Otherwise, locate the increaser in the horizontal vent at the entrance to the chimney.

c.With any new or replacement installation the chimney has to be considered. Chimneys that have a high heat loss may become less suitable as the heat loss of the home goes down and the efficiency of the boiler installed goes up. Most homes have a chimney appropriate for the fuel and the era in which the home was built. That may have been a coal fired or an inefficient oil fired boiler built into a home without insulation or storm windows. With increasing fuel prices that home probably has been insulated and fitted with storm windows so that the heat loss of the home has been reduced. This requires less fuel to be burned and sends less heat up the chimney.

A new boiler probably has a higher efficiency than the boiler being replaced. That probably means that the stack temperature from the new boiler will be lower than that from the old boiler and with less room air being drawn up the chimney to dilute the stack gases. The combination of a large uninsulated chimney, reduced firing rate, reduced firing time, lower stack temperature and less dilution air can, in some cases, contribute to the condensing of small amounts of water vapor in the chimney. Such condensation, when it occurs, can cause chimney deterioration. In extreme cases, the chimney may have to be lined to insulate the chimney and

thus prevent the condensation. The addition of dilution air into the chimney may assist in drying the chimney interior surfaces.

A massive chimney on a cold, or exposed outside wall may have produced adequate draft when it was fired with a higher input and greater volumes of heated gases. With reduced input and volume, the draft may be severely affected. In one instance our research showed a new chimney of adequate sizing produced only .035" W.C. after 30 minutes of continuous firing at 13.0% CO2. Outside wall chimneys take longer to heat up and can have .00" W.C. draft at burner start- up. You may have to consider a special alloy chimney flue liner with insulation around it and a stabilizing draft cap or even a draft inducing fan in severe cases.

d.For the same reasons as in c. above, heat extractors mounted into the breeching are not recommended.

3.For minimum clearances to combustible materials refer to Figure 2.

B.OPTIONAL AIR INTAKE PIPING INSTALLATION - All air for combustion can be supplied directly to the burner from outdoors (ONLY AVAILABLE WITH BECKETT BURNER). See Figure 18.

WARNING

Do not reduce siz e of air intake pipe.

Read, understand and follow combustion air instruction restrictions contained in the Pre-Installation Section of this manual.

1.General

a.Use 4 inch diameter, single wall galvanized metal pipe and fittings available at most heating distributors for air intake piping. Maximum allowable air intake length is 50 equivalent feet. Each elbow is equal to 6 equivalent feet.

WARNING

Do not exceed maximum allowable air intake length.

b.Start at Burner. Work toward air intake terminal.

c.Maintain minimum of ¼ inch per foot slope in horizontal run to air intake terminal. Slope down toward air intake terminal.

d.Seal all joints gas-tight, using silicone caulk or self-adhesive aluminum tape.

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Burnham V8 Series manual Section VII Venting and AIR Intake Piping, General Venting Guidelines
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V8 Series specifications

The Burnham V8 Series is a prestigious line of oil-fired boilers renowned for their efficiency, reliability, and advanced design features. Tailored for residential and light commercial applications, this series exemplifies the perfect blend of tradition and modern technology, ensuring long-term performance and comfort for users.

One of the hallmark features of the Burnham V8 Series is its exceptional cast iron construction, which provides durability and superior heat retention. This robust design allows for an extended lifespan while ensuring that the boiler can withstand the rigors of daily use. The cast iron sections are engineered to facilitate optimal heat transfer and efficiency.

The V8 Series boasts an impressive fuel efficiency rating, often exceeding 85%. This high efficiency is achieved through a combination of advanced combustion technology and the boiler's thoughtful design, which minimizes heat loss. Users benefit not only from lower energy bills but also from a reduced environmental footprint, making the Burnham V8 Series a sustainable choice for heating solutions.

In terms of technology, the Burnham V8 Series features a standing pilot ignition system or an optional intermittent ignition device that enhances safety and efficiency. The advanced burner design allows for smooth operation and excellent fuel utilization, further contributing to the overall economy of the system.

Another notable characteristic is the versatility of the Burnham V8 Series. It can be easily adapted to work with various heating systems, including hot water heating applications. Its compatibility with different fuels, such as natural gas or oil, gives users the flexibility to choose the best energy source for their needs, providing longevity and value.

The installation process is made straightforward with ample connectivity options for plumbing and flue. Its compact design enables easier placement within homes or commercial spaces without compromising performance. Furthermore, the boiler is backed by extensive warranties, ensuring peace of mind for homeowners and businesses alike.

In conclusion, the Burnham V8 Series stands out as a reliable and efficient heating solution, blending robust construction with advanced technology. Its commitment to performance, versatility, and efficiency makes it an excellent choice for meeting the heating demands of various applications while promoting environmental responsibility. Whether for a single-family home or a light commercial building, the Burnham V8 Series remains a trusted leader in the industry.
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