Operation

Automatic Draft Control

The heat output is regulated by the automatic draft control on the bottom door. The electric motor (A) opens and closes the flapper door (B). Opening and closing the flapper door regulates the air flow into the firebox.

The maximum air flow can be adjusted by turning the adjusting bolt (C). Turn counter-clockwise for more air, and clockwise for less air. Adjust this bolt only while the flapper door is in the closed position. Otherwise, motor damage could occur.

The idle air adjuster (D) controls the minimum amount of air that enters the firebox. Adjustment is made by turning the adjuster vertical for zero idle air, or horizontal for maximum idle air. It is best to start out with a medium setting as shown in Figure 9.

FIG.8

FIG.9

Starting a Wood Fire

Make sure the boiler and all piping is full of water and that all air has been purged from the system.

Never start a fire without water in the system. An explosion will occur.

Turn on electrical power to the boiler. This should cause the automatic draft control to open.

Open the ash pan door to allow free air movement. With the firebox door open, crumble approximately 8 sheets of newspaper and place on the grates. Lay some small kindling on top of the newspaper. Be sure this kindling is dry and no more than 3/4 in. in diameter. Layer the kindling in a criss-cross type pattern, to allow maximum air flow. Next lay some larger pieces of wood on top of the kindling (approximately 2 in. diameter). Using a match or lighter, light the paper just inside the door. Close and latch the firebox door and allow the fire to burn a few minutes. After about five minutes, close the ash pan door and re-open the firebox door an inch or two, to allow the smoke to clear. Add 4 or 5 larger logs (about 4 in. diameter) to the well established fire and close the firebox door. Leave the ash pan door open for about five minutes only. Now open the firebox door using the same method as before, always closing the ash pan door before opening the firebox door. Now you can load the firebox to the desired level. You may load wood to the top of the firebox. Close and latch the door. The ash pan door may again be opened to speed the ignition process.

Do not leave the boiler unattended with any door open.

After the wood is burning well, close the ash pan door. The automatic draft control will now regulate the fire, based on temperature demand.

The idle air adjuster must be tuned to where the fire doesn’t go out during long periods with no demand. Experience will dictate the best setting for your installation. Normally, the two manual draft controls on the firebox door are kept closed while burning wood.

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Harman SF160 manual Operation, Automatic Draft Control, Starting a Wood Fire
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SF160 specifications

The Harman SF160 is a state-of-the-art speaker designed to deliver high-quality audio performance for a variety of applications, including home entertainment, music listening, and professional audio setups. Renowned for its exceptional sound clarity and powerful bass response, the SF160 has quickly gained recognition among audiophiles and sound professionals alike.

One of the standout features of the Harman SF160 is its advanced speaker technology. It employs a finely-tuned woofer and tweeter combination, ensuring that low, mid, and high frequencies are reproduced with precision. This meticulous engineering results in a balanced sound that is pleasing to the ear, making it perfect for listening to anything from classical music to contemporary pop.

The SF160 also boasts a peak power output that can handle demanding audio requirements. With an impressive wattage rating, it can fill large rooms with sound without distortion, providing an immersive listening experience. This makes it an ideal choice for home theaters, parties, or even professional sound setups.

In terms of design, the SF160 is built with durability and aesthetics in mind. The speaker cabinet is crafted from high-quality materials that minimize resonance and coloration of sound while contributing to an elegant look. It comes in various finishes, allowing users to choose a style that complements their home or studio decor.

Connectivity options are another highlight of the SF160. With modern audio demands in mind, it offers a range of input options, including Bluetooth, USB, and auxiliary ports. This versatility enables users to connect a wide array of devices, from smartphones to computers, easily enhancing their listening experience.

Additionally, the Harman SF160 features built-in smart technology, enabling integration with voice assistants and smart home systems. This functionality allows users to control their music effortlessly, making it a convenience-driven audio solution.

Overall, the Harman SF160 synthesizes cutting-edge audio technology with user-friendly design. Its blend of aesthetics, sound performance, and connectivity makes it a standout choice for individuals seeking a top-tier speaker that fits seamlessly into their lifestyle. Whether for casual listening or professional use, the SF160 delivers exceptional audio performance that is hard to beat.
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