HPAC Magazine


Figure 1 Fan coils for condensing boilers. Larger coil with greater HX surface area.
Article CoolingHeatingHydronics

Ramping Up System Performance

August 2, 2014 MARK NORRIS

How do you determine the efficiency of the heating system that you are recommending to a customer? It is an important question that comes up regularly, but there is no simple answer. The simple answer would be the published boiler

Figure 1 Single loop primary with loads
Article CoolingEngineeringHeatingHydronics


August 2, 2014 MIKE MILLER

Get the flow you want, where and when you want it.

High velocity systems are hidden from view except for the diffusers.
Article CoolingHydronics

Cooling Options For Hydronic Applications

August 2, 2014 MIKE BUTLER

Cooling in a hydronic heating environment suggests that the heating is already present. In the perfect total system design, heat is delivered from the floor and cooling from the ceiling or high wall. This approach also carries the potential to

The ice storm of 2013 definitely illustrated the advantages of older, simpler technology.
Article CoolingHeatingHVAC SystemsHydronics

Complex Times Call For Basic Measures

August 2, 2014 STEVE GOLDIE

I love how Mother Nature every now and again gives us a good old fashioned smack down, just to remind us who is really boss. The ice storms eastern Canada experienced this past winter are a good example, leaving hundreds

When it comes to air cooled chillers, one size does not fit all for freeze protection methods.
Article CoolingHVAC Systems

Avoid Unfortunate Surprises

August 1, 2014 ADAM MEDDAUGH

Freeze protection methods for AC chillers and suggestions to minimize impacts on system performance.

Figure 1 Segregated design leads to abbreviated design considerations to meet the  minimum requirements of the building code.
Article EngineeringGreen TechnologyHeatingHydronics

Integrating Elements To Improve Comfort

August 1, 2014 Robert Bean

Design wholeness can be achieved by proficiency in energy, environmental standards and guidelines.

Article HydronicsPlumbing

CIPH 82nd ABC – Elevating Our Passion

August 1, 2014 by hpac

The Canadian Institute of Plumbing & Heating (CIPH) welcomed more than 250 delegates at its 82nd Annual Business Conference from June 22-24 in Kelowna, BC, held at the Delta Grand Okanagan Resort & Conference Centre.Senior executives, industry professionals and representatives

Robert Fortin of MacEwen Petroleum joined COHA a decade ago. He stepped down as chair but will remain on the board for another year as past chair.
Article Heating

COHA National Symposium-Elect To Make A Difference

August 1, 2014 by hpac

The Canadian Oil Heat Association (COHA) held its annual symposium, Cleaner Heat, in Ottawa on June 18-19, 2014. Market challenges and a need for rejuvenation have prompted many changes within the association over the past year. Stephen Koch, COHA’s president

Denis Tanguay with Dr. Sophie Hosatte, director of the Buildings Group, CanmetENERGY and a member of the international organizing committee following the close of the 11th IEA Heat Pump Conference.
Article Heat Pumps

EVENTS: 11th IEA Heat Pump Conference

August 1, 2014 by hpac

Montreal was the host city of the 11th International Energy Agency (IEA) Heat Pump Conference, held May 12 to 15, 2014. Heat pump professionals from Canada and around the world gathered at the Fairmont Le Reine Elizabeth to learn about

Article Management

Ontario’s Proposed Provincial Pension Plan – Does It Make Sense?

August 1, 2014 Hank Bulmash

In 2011, Kathleen Wynne started to promote the idea of an expanded Canada Pension Plan (CPP). The federal Conservative government totally rejected the concept. The Ontario Liberals responded by putting forward the idea of a made-in-Ontario pension. At first, most

Temporary bracing of heritage facade during seismic upgrade of Ridgeway Elementary School in North Vancouver.
Article EngineeringHVAC Systems

Rockin’ and Rollin’

August 1, 2014 Rod Yeoh with Fadi Ghorayeb

Considerations when designing a building to withstand a seismic event.

Article Plumbing


June 2, 2014 by hpac

As many of our readers will remember, in our last edition (March 2014) we looked at kitchens trends for 2014 in the article Contemporary Design to ‘Steel’ Top Spot. As the title suggests, contemporary design is predicted to be the

Effect of system renovation repairs on HVAC system performance. Source: NCI certified contractor survey
Article CoolingForced AirGeothermalHeat PumpsHeatingHydronicsSolar

READER FAVOURITE FROM HPAC’S ARCHIVE: New Technology Enters The Residential Mix

June 2, 2014 IAN MCTEER

Are you ready for home automation and its implications for your business?

Canada takes action almost a decade after e-mail spam was identified as an issue.


June 2, 2014 MARK EVANS

Canada’s anti-spam legislation and what it means to you

Article CoolingHVAC SystemsRefrigeration

READER FAVOURITE FROM HPAC’S ARCHIVE: Pressure-regulating Valves: The Basics

June 2, 2014 DAVE DEMMA

It is likely that we have all had firsthand experience with someone who has a compulsive need to control all aspects of his or her own life, such that he or she often views others (particularly those closest) as attempting

Table 1 Summary of All Basic Test Results (Butcher, 2007)i
Article HeatingHydronicsPlumbing

READER FAVOURITE FROM HPAC’S ARCHIVE: An Integrated Hydronic Alternative

June 2, 2014 ROBERT BEAN

It has always made some sense that if you use hydronics to provide space heating, you ought to also use it for generating domestic hot water. This is especially true if space heating loads exceed domestic water loads and especially

Figure 1 Methods To Achieve Hydraulic Separation
Article Hydronics

READER FAVOURITE FROM HPAC’S ARCHIVE: The Wide World Of Hydraulic Separation


Several methods to achieve the same results.

Phil Gagnon in his CASS lab.
Article Human Resources

Learning model a good fit for skilled trades

May 1, 2014 Patrick Callan

Masters Challenge winner instrumental in partnering of institutions.

In-ceiling mount air curtain at Salle Andr-Mathieu in Laval, QC.
Article CoolingGreen TechnologyHeatingHVAC Systems

Reduce doorway energy losses

May 1, 2014 Stephen Benes

Air curtains may be a niche for commercial contractors.

The industry has changed from the analog controls of the 20th century to digital controls that will allow technicians to save time in set up and troubleshooting.
Article CoolingEngineeringHVAC Systems

Digital controls optimize performance


The airside economizers of today bear little resemblance to their predecessors.

Just now coming into its own in geothermal applications, PEX has been used as geothermal ground loop piping in Europe for more than a decade.
Article GeothermalHeat Pumps

Expanding Piping Options

May 1, 2014 by hpac

Crosslinked PolyEthylene accepted in revised CSA C448 Standard.

Figure 1 Radiant ceiling system design
Article CoolingHydronics

I Need This Controller…


Expanding the possibilities for radiant ceilings with a “year round” controller.

Article Engineering

Sleeping With The Enemy To Save The World

May 1, 2014 by hpac


TABLE 1 Sample rack legend.
Article EngineeringPlumbing

The Quest For The Smoking Gun

May 1, 2014 DAVID DEMMA

Performing a complete and thorough leak check of all potential leak paths is an art.

Article EngineeringPlumbing

Putting Good Design Into Practice

May 1, 2014 ROD YEOH

Even though it sounds like a system where the pipes are also holding up the building – which is never a good idea – structured plumbing is actually a term used to describe a domestic hot water system designed to

Compared to Ford's E-Series standard-size cargo vans, the 2015 Transit gets 25 per cent better fuel economy
Article Management

What’s new in cargo vans?

May 1, 2014 by hpac

Options now include office-like features in these high-roof and “old-style” vehicles.

2014 Chevrolet Silverado
Article Management

Game changers

May 1, 2014 BILL ROEBUCK

Fuel economy is the new mantra for new and upcoming full-size pickup trucks.

Stephen Carpenter P.Eng., LEED AP BD+C

Green building guru awarded the Order of Canada

March 1, 2014 PATRICK CALLAN

Stephen Carpenter, founder of Enermodal Engineering in Waterloo, ON – Canada’s largest green buildings consulting firm – has been awarded with the nation’s highest civilian honour: the Order of Canada. A founding father of green building in Canada, Carpenter was recognized

Figure 1 Steps to building a marketing plan
Article CoolingGeothermalGreen TechnologyHeat PumpsHeating

Know Your Target


Marketing geothermal heat pump systems to residential customers

The push is on to harmonize codes and standards on both sides of the border
Article CoolingForced AirGeothermalHeat PumpsHeatingHVAC SystemsHydronicsPlumbingRefrigerationSolar

Setting The Standard

March 1, 2014 PATRICK CALLAN

Plumbing industry leads harmonization charge