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Smith Cast Iron Boilers > News
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| Model | AFUE |
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GC160 |
93% |
| GT150 |
95.1% |
| GT200 | 95.1% |
2/6/2009 New Cast Iron Facility to Open in Boyertown, PA
Mestek announces cast iron manufacturing to be consolidated to one facility in Boyertown, PA
2/6/2009 New Manufacturing Facility
New cast iron manufacturing facility set to open in Boyertown, PA.
3/25/2008 THERMAL SHOCK
9/25/2007 Return Temperature Stabilizer
“Boiler Thermal Shock” can be loosely defined as a sudden thermal change that occurs within the boiler causing rapid and uneven expansion and contraction of a boiler’s structure. The problem of thermally induced stress has been apparent for many years, particularly in hot water heating systems. Several conditions can contribute to boiler stress and reduced life expectancy. In recent years the problem has become more common as energy saving measures have been increased. All involve introducing excessively low temperature water or cool water at high flow rates into a hot boiler. The term “shock” suggests a sudden impact type failure, which in the vast majority of cases is far from what actually happens. Most failures of this type occur over a period of time, sometimes materializing within as short a time frame as a few
weeks, but often a considerably longer time period ensues before damage is detected. Boiler Thermal Shock was the challenge until now.
Return Temperature Stabilizer is now standard equipment on all Smith 28 and 28HE (900 – 4629MBH) water boilers. Smith has developed this integral system that evenly distributes return water throughout all the boiler sections. RTS promotes flow and temperature equalization that results in minimal temperature differentials, effectively eliminating wide temperature variations that are associated with thermal shock and decreased boiler life. RTS is an integral component with no moving parts and will not interfere with prioritized building management control systems.
BASIC GUIDELINES WOULD BE:RTS Efficiently protects from thermal shock, however the boiler cannot be operated as a condensing boiler.
1. The boiler shall reach and maintain a minimum outlet water temperature of 140° F within 10 minutes of burner operation
2. For low water temperature hydronic systems such as water source heat pumps and snow melt, the minimum outlet water temperature shall reach and maintain 160° F within 10 minutes of burner operation.
9/20/2007 NEW SMITH DV-8 RESIDENTIAL BOILER AVAILABLE
WESTFIELD, Mass., February 23, 2007
Smith Cast Iron Boilers has introduced the DV-8, a residential, direct vent, sealed combustion cast iron boiler for water and steam based heating systems. The DV-8 water boiler is available with an optional hot water coil that can produce up to 3.5 gallons of domestic hot water per minute, eliminating the need for a separate hot water tank.
The DV-8 is small and compact designed for newer homes with tight construction and no chimney. The system is ideal for use in retrofit applications – particularly in older homes where the chimney is unusable – or homes being converted from electric heating.
The DV-8 is available in sizes ranging from 91 to 150 MBH and features extra deep cast iron sections; thicker walls with a higher-mass, oversized combustion chamber for clean combustion; quiet rear outlet design; gas-tight cleanout cover for easy maintenance; and a limited lifetime warranty. Concentric sidewall venting and 15 feet of double wall insulated stainless steel flexible vent pipe is also provided.
For more information about new DV-8 Boiler or the company’s complete line of residential or commercial boilers, contact Smith Cast Iron Boilers
260 North Elm Street
Westfield, MA 01085
tel. (413) 562-9631
or visit www.smithboiler.com
6/11/2007 RUSSELL SAGE COLLEGE
Smith Russell Sage College.pdf
The college turned to Carrier Corporation’s Commercial Service Division of Middletown, Conn., to design an updated and more efficient heating system. Al Berry, project engineer for Carrier explained the problem. “Each of the failing boilers was housed in a separate boiler room in the basement of the building that it was heating. To make the system more efficient, we wanted to centralize the boiler room and feed low pressure steam to several buildings from one location. Not only would a centralized boiler system be less expensive to install, but it would also be easier to manage and provide for maximum efficiency.”
The criteria for the new boilers were that they meet an efficiency rating established by NYSERDA, the New York State Energy Research and Development Authority.
Due to the space limitations and the location of the central boiler room, the new boilers would have to be sectional and installed and assembled on location in the boiler room. The college also wanted a system that had vastly improved efficiency and would help them cut energy consumption in the long-run. We specified the Smith Series 28HE for several reasons,” said Berry.“First, it is a sectional boiler and available in several sizes and in different output capacities. Second, the Smith 28 HE boiler was the only steam boiler we found that met the 83.5% minimum efficiency rating set by NYSERDA.”
“We initiated this project in order to gain energy improvements,” said Bob Pattee, director of facilities, planning and management at The Sage Colleges. “We anticipate a payback for the new boiler system in terms of years, not decades,” he said.
FPI Mechanical of Cohoes, N.Y., was hired to install the system. “Our part of the project was to turn the plans into reality,” said Joe Herkenham, of FPI Mechanical. The new boilers were brought into the facility in sections and assembled on location in the boiler room. Three Smith boilers were specified for the job to meet the college’s heating and hot water demands year round. The two large 17-section boilers were designed to handle the winter heating and hot water requirements while the smaller, eight-section, boiler was designed to provide sufficient domestic hot water during the spring and summer months when it is not necessary to heat the facility.
Smith cast iron boiler sections are precision-machined to ensure dimensional accuracy. In addition, graphite port connectors provide the installation ease of a gasket and the longevity of a push nipple to minimize callbacks. The graphite connectors are made from flexible, inert carbon material and provide a lifetime seal that is impervious to chemicals, flue gases and high temperatures.
FPI Mechanical had installed another large sectional Smith Boiler in an apartment complex in Albany, NY recently, so the Russell Sage project went smoothly and on schedule.
The system was designed so that each boiler would fire alternatively – one on, the other off. This would not only provide a regular cycle for the boilers, but it would also allow one boiler to be serviced without a heating loss to the facility if necessary.
Not only was the project completed on time, but the boilers performed very well in their first semester away at college.
Read the attached .pdf document for more information.
6/11/2007 NAUGATUCK HIGH SCHOOL
“The boilers were oversized for the school,” said Hugh Leahy, project manager for the Boston office of Siemens Building Technologies, the company hired as the mechanical designers and general contractor for the project.
“One of the boilers ran all year long, the other stayed in stand-by mode. When it was time to replace them, the school district really wanted to make sure they installed an efficient boiler.”
In fact, the ultimate goal of the project was to help the school district to save money by cutting their energy consumption and fuel costs.
Siemens specified four, high efficiency, Smith 28 HE, 12-section cast iron boilers for the project, due in part to their thermal efficiency rating of up to 85 percent. As part of the project the new boilers were brought into the facility in sections and assembled on location in the boiler room. New concrete pads were poured for the new Smith 28 HE boilers, and the existing heating infrastructure was re-used. The only new piping required was from the new boilers to the header. Tucker Mechanical of Meriden, Connecticut installed the new system.
Cast iron sections are precision-machined to ensure dimensional accuracy. In addition, graphite port connectors provide the installation ease of a gasket and the longevity of a push nipple to minimize call-backs. The graphite connectors provide a lifetime seal that is impervious to chemicals, flue gases and high temperatures.
The Smith Series 28 HE boilers -- available in 15 basic sizes with output ratings from 931 to 4,622 MBH - are designed to provide the highest combustion and thermal efficiencies possible with forced draft firing. They can be used in either water or steam systems, and may be fired with light oil, gas or gas/oil combination.One of the primary objectives for the project was to help the school district to save money. And according to Leahy, the estimated fuel savings was nearly 25%. Perhaps more important, the school never had to run more than three boilers at any given time all year, so there is still plenty of heating capacity.
Read the attached .pdf document for more information.
1/31/2005 Smith Cast Iron Boiler Replaces Oldest Working Boiler in New Hampshire
The donation of a new Smith Series 8 Boiler was the result of a holiday-season contest that Wilkins Mechanical Services sponsored in New Hampshire to identify the oldest working boiler in the state. The winner was Marc Palmondon of Nashua, who lives in a house that was built in the late 1800s. The original boiler, an old “snowman” style steam boiler -- manufactured by the Richardson Boiler Company -- was the only heating system that the house had ever had.
“We wanted to host a contest around the holiday season to provide someone with a new boiler,” said Todd Lavery, general manager of Wilkins Mechanical Services. “We do lots of business with Smith and they agreed to participate in the program and help with the donation.”
The contest was promoted throughout the state on three radio stations that Wilkins advertises on, and netted well over 30 entries, including several boilers that dated back to the early 1900s. The replaced boiler was originally designed for use with coal, however, the system was converted in the early 1950s for use with oil.
For his winning submission, Palmondon has received a high efficiency Smith Series 8 Residential Boiler. The new boiler has an efficiency rating of over 85%, a long cry from the estimated 55% efficiency of the old boiler, and a limited lifetime warranty on the heat exchanger. In addition, all Smith Cast Iron Boilers are in compliance with A.S.M.E., and cast iron sections are hydrostatically tested. Per A.S.M.E. code section VI, cast iron boilers are more resistant to corrosion than steel boilers, allowing owners to operate their boilers without water treatment. Smith boilers are designed with full access to the fire side heating surfaces which allows for easy boiler cleaning and maintenance.
The total value for replacing the existing boiler and installing a new one is about $6,000 according to Lavery, however, the old boiler and pipes were wrapped with asbestos, which had to be professionally removed. Thanks for the help of Alpha Asbestos Abatement, of Bedford, NH, and their partnership with Covino Environmental Associates, Inc, Waste Management, NEET, and NHDES, who all donated their services for the project.
“The end result is that we all donated time, money and materials to bring this contest to reality, and best of all, we really made Mr. Palmondon’s holiday special,” said Lavery. “It was a great program and we are very pleased with the results.”
From headquarters in Westfield, Mass., Smith Cast Iron Boilers are available for commercial, institutional and residential applications, and are distributed throughout the U.S. For additional information, contact Smith Cast Iron Boilers at
260 North Elm Street
Westfield, MA 01085.
Tel. (413) 562-9631 or on the web at http://www.smithboiler.com/html/series8.asp.
Wilkins Mechanical Services, Inc. can be reached at
7 Bellemore Drive, #1
Bedford, NH.
Tel. (603) 647-7741 or on the web at www.wmshvac.com.
