Articles
One side or the other
March 1, 2015 John SiegenthalerAlternate ways to pipe up a buffer tank.
Methods to prevent motor failure
March 1, 2015 Dave DemmaOperation and troubleshooting of electric motors – Part II.
Grow the business you can afford
March 1, 2015 Hank BulmashEntrepreneurship comes with risks, but there are steps you can take to improve your chances of success.
Preventive measure proves profitable
March 1, 2015 Rick EnsleyUsing waterless floor drain traps to eliminate sewer odours and evaporation.
Why don’t my floors feel warm?
February 1, 2015 John SiegenthalerSimple solutions to avoid the dilemma of unfulfilled customer expectations.
A little math goes a long way
February 1, 2015 Lance MacNevinWhat you need to know about the financial reality of operating snow and ice melt systems.
Pressure and high school chemistry
February 1, 2015 Cliff McNeillHow the often misunderstood expansion tank protects closed hydronic systems.
Electric Motors: Operation and Troubleshooting
February 1, 2015 Dave DemmaImagine a world without the electric motor: No elevators, no DVD players, no computer hard drive, no electric clocks, no Toyota Prius’, no washing machines or dryers, no conveyor belts at the supermarket checkout stand, no manufacturing plants of any…
Tips for restaurant hot water systems
February 1, 2015 Amin DelagahWarming up to a new design perspective-Part I
Ones and zeros
February 1, 2015 by hpacHow to incorporate relays into your design strategy.
Ice Machine Basics
February 1, 2015 Mark MastersonThere are many choices of commercial ice machines on the market today. While you might think that the technology for making ice has changed little over the years, this is actually not the case. Technology has advanced and so have…
Heat loss/heat gain considerations
February 1, 2015 Robert BeanWhen I joined ASHRAE in 1990, I did not imagine that 25 years later HVAC equipment would be selected and installed in the absence of a heat loss and gain calculation. It is like bad reruns on late night television;…
Exploring the agricultural market
February 1, 2015 Bill BossBiofuel heating system raises profits for organic poultry farmer.
Technology pumps out savings
February 1, 2015 Mike MillerVariable speed pumping has brought new levels of energy efficiency to the HVAC industry. While many larger buildings utilize system pumps operating on variable frequency drives (VFDs) with the guidance of pressure differential sensors, pumps that do not require external…
Ghost-Busting Heat Transfer In Return Air Plenums
December 1, 2014 ROBERT BEANCommon sense, a bit of heat transfer knowledge and strict adherence to specifications go a long way to improving the air/hydronic dynamic.
In Defence Of Compressors
December 1, 2014 DAVE DEMMASteps to getting at the root cause of compressor failures.
Long Name… Nice Concept…
December 1, 2014 JOHN SIEGENTHALERUse the conditions created by piping, together with circulator characteristics to prevent cavitation.
Why PVC Pipes Sometimes Fail And How To Prevent It
December 1, 2014 BRANDON PEACHOver the years, flexible PVC pipes have become more stable and reliable, achieving a rather low failure rate. However, there are still several ways they can be misused, with the user or installer typically to blame. Here are some do’s…
System Performance Boils Down To Location, Location, Location
December 1, 2014 MIKE MILLERPoints to be mindful of when installing and troubleshooting snow melt control.
Safety, Savings and Sustainability
December 1, 2014 RON AUVILSimple test offers several benefits.
Minimize The Risk Of Legionella In Building Plumbing Supply Systems
December 1, 2014 DEREK BOWERIn the plumbing industry in the North America, there is an increasing focus on water quality and waterborne pathogens. For public water systems, the Environmental Protection Agency (EPA) regulates 88 different contaminants, including microbial contaminants, disinfection by-products, organic and inorganic…
Big Van Gets Boost In Worksite Prowess
December 1, 2014 bill roebuckMajor new features revealed at a press event showcasing the capability of the 2015 Mercedes-Benz Sprinter.
Mechanical Industry Plays Starring Role In NHL’s Goals
December 1, 2014 PATRICK CALLANThe National Hockey League (NHL) released its 2014 NHL Sustainability Report this past summer and with it became the first professional sport in North America to compile a detailed analysis of its carbon footprint. The report looked at the operations…
Take A List – Check It Twice
October 1, 2014 by hpacStep-by-step annual servicing of gas appliances.
Pellets To PEX
October 1, 2014 JOHN SIEGENTHALERCombi-systems supplied by modern pellet-fueled boilers.
Be Aware Of Potential Risks
October 1, 2014 MICHAEL GLASCOJust how much of a threat is asbestos to mechanical contractors?
News Feature: From The Rock To New Orleans
October 1, 2014 PATRICK CALLANTrades students help rebuild hurricane-ravaged communities.
Anatomy of a single-zone system
October 1, 2014 by hpacWhen John Raftis, owner of Ivan Armstrong Trucking in Arthus, ON moved forward with a 40,000 sq. ft. warehouse expansion, he decided to go with an in-floor heating system. Raftis wanted a simple system for the insulated steel frame structure,…
Refrigerants, Controls Top Of Mind At AGM
October 1, 2014 KERRY TURNERThe Heating Refrigeration and Air Conditioning Institute of Canada (HRAI) held its 46th Annual General Meeting and Conference in Montreal, QC, from August 20-23. HRAI, which is in the final year of implementing its three-year strategic plan, opened the conference…
Snow Melt System Performance
October 1, 2014 ROBERT BEANUnderstand the influence of sensitivity and storm characteristics.