Bosch Thermotechnology has introduced its Heatronic 4000 commercial boiler control for producing and maintaining a set target temperature in up to four boilers. The Heatronic 4000 controls and monitors both condensing and non-condensing commercial boilers that have modulating, single-stage, two-stage, and dual fuel burners. The company claims the BacNet® and Modbus® compatible burner controller allows for a more flexible, cost-effective mixed boiler plant solution, providing better system control, energy efficiency and overall boiler performance.
Bosch Thermotechnology has expanded its Buderus brand GB162 gas condensing boiler offering. The company claims by combining condensing and cascade technologies together in one compact design provides ultra-high performance efficiencies (up to 93% AFUE) with the ability to fit multiple boiler units into tight spaces.
Schebler says its Sequence Draft Control™ (SDC) design service offers boiler and hot water heater manufacturers a complete engineered venting system. SDC is capable of maintaining the desired condensing dew point of combustion, preventing excess draft which impacts efficiency and fuel/air ratio’s – especially with high turndown modulating burners.
The new MagnaTherm from Laars is a 95% thermal efficiency modulating-condensing boiler or volume water heater available in 2, 3, and 4 million Btu/H sizes. MagnaTherm says it offers a 5:1 turndown, small footprint, slim vertical design with removable top section, a stainless steel heat exchanger, and multiple voltage options to match building service. Designed and made in the U.S.A, the MagnaTherm meets all ASME requirements and is AHRI certified.
The ClearFire®–LC from Cleaver-Brooks integrates the company’s heat exchanger, burner, and control technology into a large capacity condensing boiler product. The CFLC's integrated premix burner and linkageless control, work together to provide full modulation, ultra-low emissions, and optimum turndown, according to company officials.
Ajax Boiler introduced the Triton™ – Atlas Series™ of high-efficiency, near-condensing boilers. The boilers feature up to 86% thermal efficiency and a double row, double pass, high finned copper finned heat exchanger.
Cambridge Engineering has introduced a new line of Blow-Thru® Direct Gas-Fired Space Heaters designed to efficiently and safely heat smaller commercial and industrial facilities. The new line of space heaters, called the Cambridge SA-Series, uses the same technology as the larger ultra high-efficiency Cambridge S-Series, but is sized for smaller applications.
Harsco Industrial Patterson-Kelley has launched the P-K SONIC™ boiler with Duet™ technology. The company claims the P-K Sonic boiler is the first practical stainless steel design for condensing applications in the industry.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.