Bosch Appliances 125B NG, 125B LP specifications Masonry Chimneys, Figure C

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MASONRY CHIMNEY: Masonry chimneys shall be built and installed in accordance with NFPS 211 or local codes. A minimum 5” diameter gas vent pipe (metal double wall Type B), or an approved clay flue liner or a listed chimney lining system must be used when venting into a naturally drafting, internal masonry chimney. 6 inch is required in elevations greater than 2000 feet, see Fig. 4. Local codes may require the use of both gas vent and an approved lining system when venting into a masonry chimney. The Commonwealth of Massachusetts requires the use of a listed liner. Lining systems include approved clay flue lining, a listed chimney lining system or other approved material that will resist corrosion, erosion, softening, or cracking from exhaust flue gases at temperatures up to 1800 degrees F. The lining system must be listed for use with naturally drafting, draft hood equipped gas appliances. Follow local codes and refer to NFGC 54 and NFPA 58.

When connecting the water heater to a masonry chimney the following connector guidelines must be followed for safe and proper operation: An approved gas vent connector must be attached to the top of the water heater and rise vertically at least 12” before entering into an approved gas vent connector elbow. Any gas vent section that is greater than 45 degrees from the vertical is considered horizontal. If a horizontal vent connector is to be used to connect the vertical gas vent connector on the top of the water heater to the masonry chimney, that approved horizontal gas vent connector must be kept as short as possible and must be sloped upwards at least ¼” per foot of its length. This connector must be supported throughout its horizontal length. This horizontal gas vent connection may be no greater than 75% of the total vertical gas flue vent within the chimney. Also, an approved thimble or collar must be used when penetrating a masonry chimney.

A) Existing INTERIOR Masonry Chimney

The metal gas vent pipe should be permanently mounted inside the masonry chimney. Double wall Type B gas vent is recommended. The masonry chimney may have to be tile or metal lined before the insertion of the gas vent pipe; check local codes for clarification. The lining material must be listed for use only with naturally drafting, draft hood equipped gas appliances. Follow manufactures instructions for installation of listed lining material. You may not vent any other fuel burning appliances into any free space remaining in the chimney. The minimum vertical gas vent length within the masonry chimney should be no less than 5 ft (1.5 m); the vent terminator should extend at least 3 feet (0.9 m) above where the chimney meets the roofline and at least 2 feet (0.6 m) higher than any vertical wall or similar obstruction within 10 feet (3.1 m). The top of the gas vent should have an approved vent terminator. See Figure C.

B) Tile Lined INTERIOR Masonry Chimney

The masonry chimney must have an approved liner, ceramic tile, clay or metal. The masonry chimney must be able to accommodate the spent fuel gasses; consult a venting HVAC contractor for chimney capacity. A common venting like-fuel appliance into this lined masonry chimney is permissible. The chimney’s diameter must be large enough to adequately draft the spent fuel gasses. A venting HVAC contractor will be required to spec a chimney system. The minimum vertical chimney length should be no less than 5 ft (1.5 m); the termination point should extend at least 3 feet (0.9 m) above where the chimney meets the roofline and at least 2 feet (0.6 m) higher than any vertical wall or similar obstruction within 10 feet (3.1 m). See Figure C.

C) EXTERIOR masonry Chimney

Refer to the National Fuel Gas Code and consult a local venting HVAC contractor.

MASONRY CHIMNEYS

LISTED VENT CAP

GAS

VENT

VENT CONNECTOR

ESTABLISH A ONE

FOOT RISE BEFORE

ANY ELBOWS

Figure C

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Contents What to do if YOU Smell GAS For Your SafetyTable of Contents Features Unpacking the Aquastar HeaterAquastar Model 125B Front View Side ViewProper Location for Installing Your Heater General Rules to Follow For Safe OperationCombustion AIR Requirements ClearancesMounting Installation Mounting the HeaterVenting Establish a ONE Foot Rise Before ANY ElbowsMasonry Chimneys Figure CVent Adaptor for High Altitude Installations 6 Adaptor Used on High AltitudeGAS Line Sizing Maximum Inlet GAS Flow Pressure SettingGAS Connections GAS Line Sizing For Natural GAS For LP GASOperating Instructions For Your Safety Read Before Lighting the PilotWater Connections Setting the Water Temperature To Turn OFF GAS to ApplianceAIR Screen Pilot Orifice Pilot Light will not Light Pilot Lights but Flame Goes OUT When Button is ReleasedBurners do Notignite When HOT Water is Turned on Water is TOO HOT Water is not HOT EnoughHOT Water Temperature Fluctuates / Unit Deactivated Unbalanced pressure in waterlines720 607 Diagram of AquaStar 125 B Interior Components Diagram and Parts List Interior Components Diagram Parts List 125B Limited Warranty Flow chart of Aquastar 125 B Maintenance Table see pages 13

125B NG, 125B LP specifications

Bosch Appliances has long been a trusted name in kitchen technology, and their 125B LP and 125B NG models are no exception. These gas appliances combine advanced features with top-notch engineering, ensuring excellent performance and reliability in the kitchen. Designed for both professionals and home cooks, the 125B series caters to diverse culinary needs.

One of the main features of the Bosch 125B model is its dual fuel capability. The LP (liquefied petroleum) and NG (natural gas) options make it flexible for various installations and preferences. This versatility ensures that users can easily find the right setup for their kitchens, whether they're using propane or natural gas.

The burners in the 125B series are designed with precision in mind. Each model features high-efficiency burners that deliver a maximum output of 15,000 BTUs. This level of power enables rapid heating for boiling, frying, or searing, while the low-simmer setting allows for gentle cooking tasks such as sauces and delicate soups. The continuous cast iron grates offer both durability and stability, allowing for easy movement of pots and pans across the cooking surface.

An additional technological highlight of the Bosch 125B series is the flame failure safety device. This essential safety feature automatically cuts off the gas supply if the flame goes out, providing peace of mind for users. The inclusion of electronic ignition also enhances convenience, making it easy to start the burners with just a turn of the knob.

The sleek design of the Bosch 125B appliances blends seamlessly into any kitchen decor. With a professional stainless steel finish, they add an element of sophistication while being easy to clean and maintain. The intuitive control knobs are ergonomically designed, ensuring smooth and precise adjustments to the flame.

In terms of installation, both the 125B LP and NG models are designed for straightforward setup, making them suitable for renovation projects or new builds. Bosch Appliances also offers a range of accessories to further enhance the functionality and aesthetic of the kitchen setup.

Overall, the Bosch 125B LP and 125B NG appliances represent a perfect combination of efficiency, safety, and style. With their robust features and advanced technology, they promise to elevate the cooking experience for anyone who values quality and performance in the kitchen. Whether you're a novice home cook or a seasoned chef, these models are sure to meet and exceed your culinary expectations.
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