Related Posts

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  Customizing the standard S-Series for better performance in humid environments

  In warehouse and distribution center spaces where our standard S-Series HTHV (high-temperature heaving & ventilation) heaters are commonly installed, the units see 20-30+ year lifespans under routine maintenance and within the range of normal environmental conditions. However, not all applications are “standard” and need specific conditions to be considered in the system design. A prime example of a situation where a facility needs the heat throw and efficiency that our S-Series provides, but with an overly humid environment, is that of heating a carwash tunnel.  First, the facts: the car wash industry is one of the fastest-growing industries in the U.S., valued at a record $14.21 billion in 2020 and expected to expand 4.8% annually from 2021 to 2028. Based on conversations with industry leaders, a significant portion of their profit comes in the winter months; however, outside winter weather conditions paired with open bay doors present a challenge to keeping the tunnel warm enough for the car wash equipment to stay optimally functional. Closing the bay doors to retain heat is not an option because people may assume it is ...
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  Retrofit Case Study: Cambridge HTHV Heaters vs Direct Fired Recirculation

  In Fairmont, WV, a manufacturer with a 160,000 ft2 building faced a challenge. They were using direct-fired-recirculation units to heat their facility, but this resulted in uneven temperatures, high operating costs, cold dock areas, and maintenance headaches. They knew they needed a solution that would not only reduce their energy consumption and carbon emissions but also save on annual operational costs. That's when they decided to turn to the Cambridge S-Series. Choosing the Cambridge S-Series proved to be a game-changer for the manufacturer. The Cambridge system provided more even temperatures, warmer dock areas, lower operating costs, and lowers maintenance costs. Their total operating cost with the Cambridge system was only $0.65/ft2, which is significantly lower than the previous operating cost of $1.12/ft2. What's more, the Cambridge system used less total energy, resulting in a remarkable 42% reduction in carbon emissions, or 410 fewer metric tons of CO2 per year. Thanks to their choice of going with the Cambridge S-Series, the manufacturer can now enjoy annual savings of up to $1.54 million over 20 years. Cambridge units are built to last, with low maintenance ...
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  The Path to Net Zero Utilizing HTHV Technology

  *This article was originally published as an advertorial in ASHRAE Journal, July 2022 More and more, leaders want to provide comfortable workspaces for their employees with HVAC that’s both reliable and sustainable. Persistent challenges such as uneven temperatures and inadequate ventilation can be addressed head on with the right equipment and technology. These systems also play a vital role in the reduction of natural gas consumption resulting in lower carbon emissions.  While electrified systems that produce zero carbon are a long-term goal for some, the reality is that leaders will need to make decisions for their facilities long before that goal will be achievable. Finding partners and technology that require less carbon, especially for large, high-bay facilities is instrumental to helping these leaders along that path. Cambridge Air Solutions’ proprietary HTHV technology in our S-Series heaters enables industrial space heaters to be more energy efficient than all other types of indirect and direct gas-fired systems. Since they only require a very low energy use per square foot, facilities can realize a 20-70% reduction in energy usage, according to a DOE study. This energy ...
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  Cambridge S-Series Preventative Maintenance Schedule

  Proper maintenance is essential to keep your Cambridge S-Series heating unit running efficiently and prevent costly repairs. This blog outlines a preventative maintenance schedule for your unit. Depending on whether your unit has filter sections, inspections should be done two or four times a year. In this guide, we'll cover crucial tasks like checking air filters, greasing bearings, inspecting belts, and more. By following these steps, you'll extend the lifespan of your equipment and optimize its performance, reducing energy costs and minimizing downtime. Let's get started on maintaining your Cambridge S-Series unit.  *Full maintenance procedures and instructions may be found in the applicable product tech manual. Suggested inspection Frequency:  2 times per year for units without filter sections  4 times per year for units with filter sections  Check the air filters: Clean these filters if necessary because dirty filters will reduce CFM and could damage the discharge air sensor.  Service the filters as needed based on the “loading” experienced. Clean filters typically start out with a pressure drop across the filters between 0.15 and 0.25” WC. Cleaning or replacement is generally required below the pressure drop increased by ...
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  Cambridge Information Bulletin - Selection, Placement & Installation of an S-Series Unit - Thru Wall Mounting

  THRU WALL UNITS  Thru wall units are an excellent choice for many warehouse applications. They do not require any floor space. Typically, the units are mounted in shipping/receiving areas to address the cold air gain at the dock doors.  For manufacturing areas, due to the presence of overhead cranes, thru wall units are frequently not a viable option. The clearance required for an overhead crane at the side wall typically does not allow adequate room to install a thru wall unit.  The heater may have an external gas train. The gas train should be positioned such that the equivalent distance from the outlet of the gas train to the inlet of the heater does not exceed 4 feet. Usually the best location is to place the gas train perpendicular to the side of the heater, so it can be piped directly into the heater’s gas inlet, as illustrated in the S-Series Technical Manual.  Servicing the unit is another potential problem if overhead cranes are present. Accessing the unit via a boom lift or scissors lift will entail entering crane space. This usually means ...
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  What is the Difference Between Blow Through and Draw Through?

  This blog was guest written by Chris Leach, Applications Engineer. There are two main non-recirculating direct gas-fired heater designs for commercial and industrial applications and those are blow-through and draw-through. The main difference in these two systems is the location of the blower relative to the burner. While a simple difference, blow-through units provide multiple benefits for large industrial space heating driven applications. Blow-through, as defined by the DOE (Department of Energy) as HTHV (High Temperature Heating & Ventilation) and employed in our S-Series heaters, places the blower before the burner and benefits from a higher LAT (Leaving Air Temperature) and temperature rise (∆T). HTHV units are not limited by the fan components in the hot airstream and can safely discharge at the maximum allowable limit for CSA certified direct fired applications. Draw-through units place the blower after the burner and have a lower LAT and ∆T due to limitations of the fan components in the hot air stream. Each of these systems has a specific purpose for large industrial spaces. For heating driven applications, maximizing the BTU to CFM ratio maximizes efficiency ...