The value of ice-based energy storage in today’s built environmentJune 10, 2016 Mark MacCracken
Energy storage is all around us, from the phone in your pocket to the vehicle on the street. Some forms of energy storage are suitable for the built environment but it is important to understand that energy should be…
Radiative coolingMay 13, 2016 Robert Bean
Virtually everyone understands how the earth is heated during the day with radiant energy, but few give much thought to radiative cooling, night or daytime. In part it is earth to sky radiation that causes outdoor water to freeze or…
HVAC in the 21st CenturyMay 13, 2016 Ian McTeer
With the prime HVAC sales season starting in earnest now, it is important to remember that air conditioning contractors must be committed to providing the best possible comfort along with the most efficient cooling systems. But here is the thing:…
About motorized control valvesMay 12, 2016 MIKE MILLER
Today the use of motorized control valves in large and small hydronic heating and cooling systems is very common. As a primer on their function and use, this article will explore available valve options, types of actuators and application examples…
Everything including kitchen sinks and faucetsMay 12, 2016 by HPAC Magazine
Out with the ornate and in with the industrial, or at least this holds true when it comes to modern trends in kitchen design. Exposed wooden beams, exposed brick and exposed pipes are in – a tribute to the 19th…
Low ambient air-to-water heat pumpsMay 12, 2016 JOHN SIEGENTHALER
Electrically powered heat pumps, in many varieties, are destined to play an increasingly important role in heating and cooling buildings around the world. They convert vast amounts of otherwise unusable low temperature heat into heat at sufficient temperatures to warm…
CO2 gets a second life-Part IIMay 11, 2016 Dave Demma
The current market drivers that have given CO2, which was a relatively forgotten refrigerant for decades, a second life were discussed in HPAC March 2016. As a review, those drivers are: environmental properties (GWP and ODP); energy efficiency; safety (flammability…
Fresh faces, along with mechanical and design tweaks, are hallmarks of the 2016 service vehicle offeringMay 11, 2016 JIL MCINTOSH
Fierce competition in the auto industry is always great news for buyers. Segments that were previously modernized infrequently, such as service vehicles, are now updated far more often in response to customer needs. Most of the 2016 vehicles underwent minor…
Helping apprentices cross the finish lineMay 11, 2016 by HPAC Magazine
The Canadian Apprenticeship Forum’s (CAF), Ontario roundtable entitled Achieving Certification: Helping Apprentices Cross the Finish Line, attracted attendees from across the country to discuss statistics, stigmas and opportunities for trades apprentices on February 26 in Toronto, ON. The chair of…
Hot Water Made To OrderMay 11, 2016 ROB WATERS
At one time, selecting a water heater was a fairly simple process. There were not a lot of options to choose from; you got a tank type water heater, which was either gas or oil fired, or electric. The water…
The tighter building conundrumMarch 1, 2016 Ian McTeer
Should our industry be promising quality indoor air?
Healthy circulationMarch 1, 2016 John Siegenthaler
It is time to get serious about water quality in every hydronic system.
Options for multiple boiler plantsMarch 1, 2016 Mike Miller
Make your best choice-understand the pros and cons of common designs.
Grease lightning: Have pride in that rideMarch 1, 2016 Andrew Bird
Are you up to speed on grease management?
The Internet of What?March 1, 2016 HPAC staff
Beyond the jargon; there is an opportunity for mechanical professionals who embrace IoT.
INOX-a four-letter word for changeMarch 1, 2016 Mark Evans
The stainless steel option and its influence on the design and installation of potable water systems.
What will the impact of tax changes be on business?March 1, 2016 Hank Bulmash
A dozen factors influencing taxation in the coming years.
Meeting the challenge of Standard compliance and energy cost reductionMarch 1, 2016 by hpac
Outdoor air ventilation seen as a means to curb incidents of hospital acquired infection (HAI).
Do the Math, Trust the MathMarch 1, 2016 Steve Goldie
What is the down side of oversizing equipment?
CO2 gets a second lifeMarch 1, 2016 Dave Demma
Whatever the refrigerant, we are still applying the same basic principles.
The Magic Kingdom of HVAC/R: ASHRAE Orlando 2016March 1, 2016 by hpac
I was in Orlando for the seven day ASHRAE Winter Conference held in parallel with the three day AHR Expo. It was neither sunny nor warm and lived up to its winter billing. For readers who have not been, the…
A look at the bottom lineMarch 1, 2016 Mark Groulx
What kind of business has the best sales appeal?
What’s new in air handlersFebruary 1, 2016 Ian McTeer
The AHU has undergone many changes since gravity warm air furnaces were the norm.
Is the water moving too fast?February 1, 2016 John Siegenthaler
New perspectives on a long-standing question.
Getting it rightFebruary 1, 2016 Steve Goldie
Sizing a pump is a relatively easy exercise.
Keeping up the dialogueFebruary 1, 2016 Luc Boily
Industry stakeholders take advantage of an opportunity to hear from industry experts.
Mixing hydronic heating water with potable waterFebruary 1, 2016 Lance MacNevin
Designers and installers must be aware of potential issues when considering heat sources.
The logic of moisture managementFebruary 1, 2016 Robert Bean
Condensation is not the dark side of chilled water and radiant cooling systems.
Excellent showing for mechanical industry at construction awardsFebruary 1, 2016 by hpac
Alpha Mechanical Contracting Ltd. and Dual Mechanical were honoured for their work on the Vancouver Aquarium and at Seabreeze Farm, respectively, in the Vancouver Regional Construction Association’s 27th annual Awards of Excellence last fall. Eleven winners were selected from 128…
Replacing boilers in existing buildingsFebruary 1, 2016 Mike Miller
Boiler replacement is sometimes viewed as an easy task, but it can be challenging if it is done right.