hvac contractor Articles

  • Minimizing Refrigerant Emissions in HVAC Systems

    Managing the operation and maintenance of a facility's air conditioning equipment has always been a major responsibility, as chillers often represent the single largest electrical load in a facility. Since the annual cost of operating chillers is a major ...


    By IHS Markit

  • HVAC Monitoring Saves Costs for a School Building

    Wireless Technology from CAS DataLoggers Monitors Energy Usage in Real-Time This summer, CAS DataLoggers recently supplied the wireless datalogging solution for a middle school maintenance supervisor who needed to perform power factoring on the building’s HVAC system before winter arrived. The school needed a lightweight ...


    By CAS DATALOGGERS

  • Monitoring and control of CO emissions in parking structures

    Until recent years most parking garage owners and managers did not realize the detrimental effects that carbon monoxide emissions from motor vehicles have on the air quality inside parking garages. With increasing awareness of indoor air quality, astute parking garage owners and managers place great importance on the reduction of CO in parking garages. Ventilation systems are a must for today's ...


    By Conspec Controls Limited

  • UVC lights enhance IAQ, reduce AHU operating costs

    Southern California Air Conditioning Distributors (SCACD), the world's largest Carrier distributor, wanted to investigate additional indoor air quality (IAQ) improvement meth- ods in its 30-year-old administra- tive facility located here.  According to Bruce Fuhrmann, com mere iaf manager for SC ACD, he knew from visual inspections that there were typical accumulations of dirt and mold ...


    By E-CO

  • Choosing Data Loggers for Your Green Building Project

    Environmental Construction and Energy Projects Require High-Accuracy Devices The green building industry is growing quickly, and successful projects benefit from assessment and evaluation from start to finish. From hospitals to industrial operations to single-family homes, measurements of conditions such as temperature, solar radiation, and energy consumption are essential to carrying out ...


    By CAS DATALOGGERS

  • Water: the natural choice - safe, natural water delivers better comfort, lower cost

    Using water to heat or cool your building is the safest alternative, as hydronic systems can be installed and serviced by any licensed professional contractor. Because other refrigerants are toxic, they must be installed by specially trained technicians. You'll see those same technicians on expensive service calls installing factory replacement parts because components are not interchangeable ...


    By Evapco Inc.

  • Fuel Oil Spill during maintenance in Ohio

    During replacement of oil furnace by an HVAC contractor in Ohio, there was an accidental release of almost 250 gallons of No. 2 heating oil in the basement. The oil seeped below the concrete surface and the smell of heating oil fumes was so strong that the home owner was advised to relocate in a hotel to prevent chemical burn of throat tissues. Environment company in charge of the cleanup removed ...


    By Sarva Bio Remed, LLC

  • Vehicle assembly building, Kennedy space center

    Situation: In January of 2000, Zentox Corporation replaced the existing ozone treatment system on the Vehicle Assembly Building (VAB) and Launch Control Center (LCC) cooling towers with a state-of-the-art ozone water treatment system that is centered on the Clean Streams™ Ozone Transfer Process. The cooling towers, a launch critical system located adjacent to the VAB, had been on ozone ...


    By Zentox Corporation

  • Case study: Kelleher residence

    Customer Name: Kelleher Residence Location: Virginia Beach, Virginia The challenge: Mr. Terry Gearhart of Virginia Power contacted Steril-Aire to see if it could help in solving mold problems in one of the power company's "energy efficient" sponsored homes. The homeowner complained about moldy odors, black particles and allergy type reactions. Steril-Aire contacted one of ...


  • Lead safety for renovation - New EPA training requirements

    The Lead Based-Paint Renovation, Repair, and Painting (RR&P) rule became effective June 23, 2008 and will be fully implemented on July 22, 2010. This rule is a federal regulatory program that applies to all renovations performed for compensation in target housing and child occupied facilities constructed before 1978. The RR&P rule includes pre-renovation requirements, as well as training, ...


    By The EI Group, Inc.

  • UnderDuct contributes to LEED design at library (FRP)

    Application Spotlight Location: Eastern Avenue Library, Davenport, IA UnderDuct Details: Over 1500-linear feet of UnderDuct from 36" diameter down to 8" diameter Project Details (from Davenport Library Press Release): A successful public and private collaboration raised $8.2-million toward construction of Eastern Avenue Branch ...


    By Monoxivent

  • Getting ready for the phase out of R-22 (HCFC) refrigerant gas

    Market Demand for R-22 HCFC Refrigerant Gas Will be 20% Higher than Available Supply The HCFC refrigerant gas called R-22 is the most pervasive refrigerant in everyday use around the world. Since the 1940's R-22 has been the refrigerant gas that we use in central air-conditioning (AC) systems at home and work. It is efficient, non-toxic and easy to use. It's difficult to grasp how important ...


    By Verisae

  • Confused about Carbon Monoxide and Ventilation?

    How does it affect you, the Building Owner and HVAC Contractor? There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the ...


    By Arjay Engineering Ltd.

  • Proactive Indoor Air Quality Surveys Save Budgets

    As facility budgets tighten, managers are realizing the many benefits that money spent for proactive indoor air quality is a smart investment. Here is a simple comparison to exemplify the point. Indoor air quality investigations conducted in response to employee complaint or illness clusters cost $3.00 to $10.00 per square foot of space investigated compared to 2 to 10 cents per square foot for a ...

  • METH: THE NEW MOLD - New Markets in Clandestine Laboratory Clean-up

    Untitled Document Intro Clandestine labs have become prevalent across America. They are used for the ...


    By EMSL Analytical, Inc.

  • Development Series: Standard vs Equity Property Condition Assessment (PCA) Report

    Understand the differences between Property Condition Assessment Reports If you’re making a significant investment on a piece of property, you will likely want to know if the HVAC will stop working in a year, or if the roof will need replacing in five, or if the cracking in the brick masonry means there is a bigger issue going on structurally.  So how do you go about uncovering ...


    By PM Environmental

  • Prevent hospital acquired infections during construction projects

    The issue of hospital acquired infections is a serious problem. According to several sources, three to four million hospital-acquired infections occur annually, with up to 80,000 fatalities. The costs of these infections are estimated to be between $4 billion and $5 billion per year (Air-Treatment Systems for Controlling Hospital acquired Infections, HPAC Engineering, April 2, 2008).Healthcare ...

  • Confused about Carbon Monoxide and Ventilation?

    There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the difference between private residential monitoring for personal safety ...


    By Arjay Engineering Ltd.

  • Blower Door Pressure Testing, Unvented Attics and Florida Homes

    I recently traveled to theCaribbean on a building science investigation. A large multi-national corporation owns several homes there for local executives. These homes had been plagued with dampness and mold growth problems for several years.  After several attempts to correct these problems, IET was called in, as we had ...

  • Superinsulated Houses

    Superinsulated building is a method of energy-efficient construction that can be adapted to any structure, commercial or residential, in any climate. A superinsulated (SI) home can save 75% of the annual energy costs for heating and cooling compared to a standard home, and is also more comfortable and healthy for the occupants. SI houses can be of any design—Colonial, Victorian, Contemporary, ...


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