Ferrous impurities form when iron or steel oxidizes. Abrasive and often microscopic, the impurities can deposit onto heat exchanger surfaces and accumulate in pump cavities, causing reduced thermal efficiency and premature wear. The new Caleffi flanged DIRTMAG® is a commercial dirt separator that is especially effective at removing ferrous impurities. As fluid enters the separator Read more
Heating & Cooling
Ferrous impurities form when iron or steel oxidizes. Abrasive and often microscopic, the impurities can deposit onto heat exchanger surfaces and accumulate in pump cavities, causing reduced thermal efficiency and premature wear.
The new Caleffi flanged DIRTMAG® is a commercial dirt separator that is especially effective at removing ferrous impurities. As fluid enters the separator, the impurities are attracted to and captured by a concentrated magnetic field created by a stack of powerful neodymium rare-earth magnets housed inside a brass sleeve located beneath the flow stream.
With 2½ times the ferrous impurity removal performance of standard separators, DIRTMAG removes up to 100% of total system impurities.
For Residential & Light Commercial Buildings Heatspring Learning Institute, in partnership with the Biomass Thermal Energy Council and John Siegenthaler, will soon launch a new “lite” version of their 10-week online course: Hydronic-Based Biomass Heating Systems. The new course will focus specifically on residential and light commercial building systems that use high efficiency / low Read more
For Residential & Light Commercial Buildings
Heatspring Learning Institute, in partnership with the Biomass Thermal Energy Council and John Siegenthaler, will soon launch a new “lite” version of their 10-week online course: Hydronic-Based Biomass Heating Systems. The new course will focus specifically on residential and light commercial building systems that use high efficiency / low emission wood gasification and pellet-fired boilers. The course is designed to be completed in one week, and provides 7 AIA continuing education hours.
This self-paced course focuses on system design. It shows how to use modern hydronic heating technology to enhance the performance characteristics of wood gasification and pellet-fired boilers, while providing safe, efficient operation, as well as unsurpassed comfort.
It covers fuel sources, energy cost comparisons, boiler sizing and selection, venting, thermal storage, auxiliary heat source integration, control concepts, and low temperature hydronic distribution systems. It pulls these design elements together into several complete and fully documented combisystem designs.
Students can ask post questions to John Siegenthaler on a facebook style bulletin board. They can also interact with other students, download PDF files of all course materials for future reference, and test their level of understanding.
After completing this course, heating professionals will be equipped with the knowledge needed to design and install efficient, safe, and reliable heating systems fueled by an abundant and fully renewable fuel source.
The course begins on May 11, 2015, For more information please visit:
Bosch Thermotechnology has introduced a New System Control (NSC) package of intelligent modules designed to control single or multiple zone systems for increased indoor comfort and greater energy savings. The NSC tightly controls energy use through two-way communications with a range of high efficiency (95% AFUE) Bosch and Buderus condensing boiler offerings: Greenstar wall-mounted and Read more
Bosch Thermotechnology has introduced a New System Control (NSC) package of intelligent modules designed to control single or multiple zone systems for increased indoor comfort and greater energy savings. The NSC tightly controls energy use through two-way communications with a range of high efficiency (95% AFUE) Bosch and Buderus condensing boiler offerings: Greenstar wall-mounted and floor-standing boilers, Buderus GB142 and GB162 boilers for larger homes and light commercial applications.
The Bosch NSC is similar to other multi-zone control systems for installation, wiring and set-up purposes using plug and play wiring terminals. However, it also comes with these unique features and functionality assets:
- Ability to have two-way communication from the Bosch or Buderus boiler to the NSC’s Comfort Room Controller (CRC100) and Comfort Zone Manager (CZM100) modules.
- Indoor feedback/load compensation operations to increase efficiency and comfort.
- Load compensation that targets supply water temperature similar to outdoor reset functions. This allows the boiler to fire to a lower supply water temperature to satisfy demand, increasing energy savings while reducing complexity and OA Reset curve set-up.
- Need for only one zone module (CZM100) for either system zone valves and circulators.
The Bosch NSC residential-light commercial zone control package consists of three modules:
Comfort Zone Manager (CZM100)
The CZM100 is a three-zone control that is expandable up to eight zones and can activate either circulators or zone valves. The CZM100 monitors changes in room temperature and adjusts the boiler’s water temperature and firing rate to reduce energy use.It operates the heating system at the lowest possible input in order to reduce room temperature swings. No programming of the CZM100 is required.
Comfort Room Controller (CRC100)
The CRC100 is a simple, easy to operate thermostat with an integrated temperature sensor that can be used as a boiler control or in conjunction with the CZM100 for multi-zone room control. Providing the boiler with more than a simple on/off signal, the CRC100 provides an exact supply water temperature command. It comes preprogrammed with default settings for the most common application and is installed using a simple boiler integrated plug and play control.
Comfort Room Controller (CRC200)
An advanced version of the CRC100, the CRC200 adds a programmable time schedule, back lighting as well as push buttons for Menu, Auto Run, Hold Run and Back functions. It also offers additional capabilities and communication with the boiler such as display of the boiler temperature, target temperature and an optional outdoor temperature sensor. Its integrated temperature sensor can be used as a boiler control or, in conjunction with the CZM100, as a room controller.
The CRC200 can also operate an indirect water heater in parallel with the clock program or continuously.
For more information on the Bosch NSC boiler zone control modules package, visit www.boschheatingandcooling.com.
LEESBURG, Va. —REHAU announces the launch of its new web application, REHAU Radiant Calculator, designed to provide contractors and wholesalers with a quick material estimate for different types of radiant heating installation methods. Intended for use by hydronics experts already familiar with sizing pumps, boilers, controls and manifolds, the calculator estimates the requirements for Read more
LEESBURG, Va. —REHAU announces the launch of its new web application, REHAU Radiant Calculator, designed to provide contractors and wholesalers with a quick material estimate for different types of radiant heating installation methods.
Intended for use by hydronics experts already familiar with sizing pumps, boilers, controls and manifolds, the calculator estimates the requirements for REHAU radiant floor heating pipe and installation materials based on simple heated area inputs. Features include an intuitive, easy-to-use interface, English (IP) and metric (SI) units, instant calculations and both print and email outputs. In addition, the calculator automatically scales for use on both mobile and desktop devices.
“We developed the REHAU Radiant Calculator to provide our customers with a faster, more convenient way of obtaining a radiant materials estimate,” said Steve Rohrbaugh, applications engineer, building solutions. “Instead of looking up the material factors and manually calculating material requirements, contractors and wholesalers can now have their answer in less than a minute using a smart phone,” he said.
To use the app, simply select the installation method and enter data for a quick material estimate. REHAU Radiant Calculator is available at http://radiantcalculator.rehau.com. Customers who require a project quote are encouraged to use REHAU LoopCAD® software or to request a radiant design from REHAU or one of the company’s channel partners.
For additional information on REHAU’s complete line of radiant heating solutions, contact: REHAU, 1501 Edwards Ferry Rd., N.E., Leesburg, Va., 20176. E-mail: rehau.mailbox@rehau.com. Web site: http://na.rehau.com/heating.
Wichita, Kan. — Viega announces two radiant training seminars in 2015 for design-build contractors and engineers. Viega, in collaboration with the Center for the Built Environment (CBE), at University of California, Berkeley, is holding the one-day training courses, titled, “Energy and Comfort Performance of Radiant Slab Systems.” The courses are co-presented by Fred Bauman, a Read more
Wichita, Kan. — Viega announces two radiant training seminars in 2015 for design-build contractors and engineers.
Viega, in collaboration with the Center for the Built Environment (CBE), at University of California, Berkeley, is holding the one-day training courses, titled, “Energy and Comfort Performance of Radiant Slab Systems.” The courses are co-presented by Fred Bauman, a prominent scientist at CBE, and Jason McKinnon, director of training, Viega.
Jason McKinnon
Viega recently announced a partnership with the CBE. Educating the industry on new and more efficient technologies for commercial integrated hydronics systems was one of the initial goals of the association between the two organizations.
The radiant training seminars are scheduled for May 13, 2015 in Washington D.C. and November 3, 2015 in San Francisco. The seminars will teach how radiant systems work, heat transfer fundamentals, energy use and thermal comfort in comparison to conventional all-air systems. Project examples and design guidance will also be covered.
“These radiant seminars provide a wealth of industry knowledge,” said Mark Parent, director of product management, Viega. “There is a lack of industry knowledge when it comes to radiant heating and cooling. Our hope is to help educate the industry on newer and more efficient technologies when designing commercial integrated hydronics systems.”
CBE is leading a research program on advanced integrated systems with a focus on radiant slab cooling, also known as thermally activated building systems (TABS). CBE recently accepted a $3 million grant over the next three years on radiant slab systems to research methods for optimizing radiant systems for energy efficiency and comfort.
Viega provides the most versatile radiant heating and cooling systems in the industry. Suitable for residential, commercial or industrial applications, Viega ProRadiant heating and cooling solutions include ViegaPEX™ Barrier tubing, Viega FostaPEX® tubing, Viega PEX Press fittings, manifolds, controls, mixing stations, sensors, mats, panels, tracks and plates.
For more information or to register for one of Viega’s radiant seminars, visit: Viega.us/training.