7. Exhaust Venting

The B10 boiler is a high efficiency unit that requires proper venting. The boiler must be vented to the outdoors by means of a tile lined masonry or a approved pre-fabricated chimney of the size and height recommended by the manufacturer or by a listed "power venting" unit which provides draft by mechanical means. In many installations, particularly older interior and most exterior chimneys, a corrosion resistant liner should be installed and may be required by code. Please consult liner manufacturer for the appropriate chimney liner.

The chimney discharge opening must be located at least 24 inches above any part of the building structure within 4 feet of the chimney. Be sure the chimney and smoke pipe won't become obstructed by squirrels, bird nests, soot buildup, chimney liner deterioration, etc.. If using a "power venter" system, it is suggested that it should be installed on the leeward side of the house. (Please consult with manufacturer of "power venter" for requirements concerning clearances from combustibles and distances from doors and windows.) The "venter" must be installed by a licensed burner mechanic and done in accordance with local codes. This is a very low stack temperature boiler (350F gross temp.) so caution should be used when connecting to an outside built chimney. Should you have concern that the flue gases could condense, then you should consider lining the chimney or using a listed, "power venting" or " direct venting unit". If "power venting" is used to discharge flue gases, then the power vent unit should be equipped with a postpurge control such as a delay-off, timing control to prevent problems with fogging and nozzle post drip.

The exhaust pipe connection from the boiler to the chimney should be as short as possible, with a minimum number of elbows. The vent pipe must have a vertical rise of at least 1/4 inch per foot of horizontal run. The vent pipe must be of the same diameter as the flue outlet on the boiler. The chimney connector should have a minimum thickness of 26 gauge, corrosion resistant (galvanized) steel, and be assembled with a minimum of three (3) sheet-metal screws in each joint. In some one and two story houses, a barometric draft control isn't required as the B-10 is designed to be pressure-fired. However in high draft situations which exceed the flue gas resistance through the boiler, a barometric draft control is recommended. The over fire draft should be positive and between 0 and .06 inches of water column. The draft at the breech should be enough to overcome the resistance through the boiler.

7.1 Common Exhaust Venting Cont.

Common vent exhaust:

If this boiler is replacing one that was part of a common venting system, it is likely that the vent is to large to vent the appliances still attached to it. To prevent this, at the time of removal, the following steps shall be followed with each appliance re- maining connected to the common venting system. Place each appliance in opera- tion, while the other appliances remaining connected to the common venting system are not in operation.

1.Seal any unused openings in the common venting system.

2.Visually inspect the venting system for proper size and horizontal pitch and deter- mine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

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QHT B3-B9 installation instructions Common Exhaust Venting
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B3-B9 specifications

The QHT B3-B9 is a remarkable series of versatile vehicles designed to cater to a wide array of industries, including construction, mining, and heavy-duty logistics. With a focus on durability, efficiency, and innovative technology, the QHT B3-B9 stands out as a preferred choice for demanding tasks.

One of the key features of the QHT B3-B9 series is its robust frame construction, which employs high-strength steel to ensure maximum durability in harsh working conditions. This resilience allows the vehicle to withstand significant payloads while minimizing wear and tear, reducing maintenance costs over the long haul. Additionally, the design includes advanced corrosion resistance treatments, extending the vehicle's lifespan even in challenging environments.

The QHT B3-B9 is powered by a state-of-the-art engine, which adheres to the latest emissions standards while delivering impressive fuel efficiency. This engine utilizes advanced fuel injection technology, optimizing power output without compromising environmental responsibility. The combination of high torque and superior power-to-weight ratio enables the vehicle to perform effectively across various terrains, ensuring stability and control under load.

Another notable characteristic of the QHT B3-B9 series is its emphasis on operator comfort and safety. The cabin is ergonomically designed, featuring adjustable seating, intuitive controls, and enhanced visibility. This focus on user experience not only enhances productivity but also minimizes operator fatigue during long hours of operation. To further improve safety, the vehicle is equipped with comprehensive monitoring systems that provide real-time feedback on performance and potential issues.

Technologically, the QHT B3-B9 integrates advanced telematics, allowing operators and fleet managers to track performance metrics, fuel consumption, and maintenance schedules. This connectivity enables proactive management, reducing downtime and improving overall efficiency.

In conclusion, the QHT B3-B9 series represents a harmonious blend of strength, efficiency, and modern technology, making it an invaluable asset for businesses that require reliable performance in demanding environments. Its innovative features and commitment to operator safety and comfort ensure that it remains a top choice among heavy-duty vehicles in its class.
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