HPAC Magazine


Grey water from washroom sinks is collected and used to dilute the acid waste from laboratories.
Article Green TechnologyPlumbing

Water reuse: Trends, barriers, and the future

March 1, 2014 ROD YEOH

People are starting to realize that water is a precious resource and we have to treat it as such. In a city such as Vancouver, where I live, it can be easy to think that conserving water is an unneeded

Figure 1 A corroded vent connector pipe after one year of operation.
Article Hydronics



Exposing myths and methods for protecting boilers against flue gas condensation

Figure 1 High-performance radiant heating panels combined with a ground source heat pump (GSHP) can provide more than 30 Btuh per square foot depending on your finished flooring.
Article Hydronics

The path to near net-zero is underfoot

February 2, 2014 Steve Rohrbaugh

Homes use a significant amount of energy to operate. Depending upon the location, about 63 per cent of that energy may be consumed by space heating according to Natural Resources Canada. Given the continual escalation of greenhouse gas emissions, status

A number of factors help the designer and installer create a system that will be the most efficient.
Article HeatingHydronics

Embedded systems: A radiant concept

February 2, 2014 Mike Miller

Snow and ice melt basics.

Figure 1 The pump curve shows how the pump will perform with varying head or flow requirements.
Article Hydronics

Troubleshooting Pump Performance

February 2, 2014 Larry Konopacz

Understanding information provided on pump curves by the manufacturer and taking some simple gauge readings are a great help for analyzing pumped system problems.

Figure 1 Piping Schematic
Article Heat PumpsHydronics

Heat Pump Plus

February 2, 2014 John Siegenthaler

How to combine an air-to-water heat pump with a boiler (Part II).

Figure 1 Lean supply air at 55F @ 50 per cent rh delivered to space to control moisture conditions below dew point of radiant panels. Shown is minimum floor surface temperature of 66F (19C) based on ANSI/ASHRAE 55.
Article CoolingHydronics

Why And How To Do Radiant Cooling

February 2, 2014 Robert Bean

“Have you ever considered that most naysayers of hybrid radiant-based HVAC systems say the problem is that you need two systems, one for comfort and one for ventilation; and yet many ventilation experts agree that independent ventilation systems are preferred – go figure.”

CMPX 2014 opens on March 19 at the Metro Toronto Convention Centre.
Article HVAC Systems

Maximize your visit to CMPX 2014

February 1, 2014 by hpac

Sessions, exhibits, van contest and Tool Take-away – the program is jammed for this mechanicals show.

Valleyview Shell Super Station in northern Alberta a winner in 2013 Cintas' Canada's Best Restroom Contest.
Article Plumbing

Restroom superstars

February 1, 2014 by hpac

Known for its spotless reputation, eco-friendly design, and geothermal heating and cooling technologies, the Valleyview Shell Super Station in northern Alberta has won Cintas’ Canada’s Best Restroom Contest in 2013. The 8350-ft.2 convenience store serves between 2000 to 2500 customers

Article Plumbing

High-performance commercial restroom fixtures

February 1, 2014 Kris Alderson

Next-generation technologies address demands of building management, front-line plumbing staff and end-users.

Article Human ResourcesManagement

Pay Now Or Pay Later

February 1, 2014 by hpac

Pension reform presents a dilemma with serious political and social ramifications.

Figure 1 Views of the world of construction.
Article CoolingEngineeringForced AirHeat PumpsHeatingHVAC SystemsHydronicsPlumbingRefrigerationSolar

Strategy Matters

February 1, 2014 Robert Bean

Our view of construction stands in the way of good buildings.

Article Heating

Ontario, Quebec hit hardest by prolonged propane shortages

February 1, 2014 Patrick Callan

News Feature

Article HydronicsPlumbing

Perplexed by PEX scenario

February 1, 2014 Kerry Turner

I sometimes get asked how I come up with ideas for this column. Editors in all markets approach their editorials in different ways. When it comes to determining subject matter, I generally avoid walking you through the issue’s content. It

Article CoolingRefrigeration

For Better Or For Worse…R-22 RIP

February 1, 2014 DAVE DEMMA

Now, the moment you have all been waiting for…the nuts and bolts of refrigerant conversion. (Part III – the finale).

Article Management

Fleet Tracking: A Boost To Mobile Intelligence

December 1, 2013 RYAN DRISCOLL

Global Positioning System (GPS) fleet tracking is the technology that allows business owners and fleet managers to use location intelligence to improve fleet operations. It is designed to make businesses with mobile assets more effective and efficient, while cutting costs


A Gift Worth Giving

December 1, 2013 KERRY TURNER


Article Management

Harnessing the Power of the Internet

December 1, 2013 BRAD EDWARDS

Three ways to help build your business online

Article Management

Worth A Closer Look

December 1, 2013 PATRICK CALLAN

Are there opportunities for mechanical contractors in home inspection?

Figure 1
Article Solar

Glancing Blow

December 1, 2013 JOHN SIEGENTHALER

Working with the incident angle modifier.

Article Management

Beating Growth Gridlock

December 1, 2013 HANK BULMASH

Understanding what your business can and cannot do.

Figure 1 Single-Wall Serpentine
Article HeatingHydronics

Radiant Loop Layout Patterns

December 1, 2013 MIKE MILLER

A review of radiant loop layout patterns with their differences, as they best represent the heat distribution into spaces with different heat loss characteristics.

Article HydronicsManagement

Building Blocks

December 1, 2013 PATRICK CALLAN

Hydronics supplier joins effort to educate children in developing nations.

Linear drains offer a sleek, modern look.
Article Plumbing

Discover New Opportunities With Linear Shower Drains

December 1, 2013 ERIC CARSON

In the ultra-competitive world of architectural building products it is remarkable that manufacturers and designers can continue to create and develop new ones. But somehow there always seems to be another lightning-hot product or system that jolts the building design

Table 1 EPA R-22 Allocations
Article CoolingHeat PumpsRefrigeration

For Better Or For Worse…R-22 RIP

December 1, 2013 DAVE DEMMA

The nuts and bolts of choosing a suitable refrigerant replacement. (Part II).

Article Plumbing

The Lowdown On Low Lead

December 1, 2013 PATRICK CALLAN

CIPH’s Ontario meeting focuses on low lead changes, coordinating Canada-U.S. stand.

Scheideman competes during one of three timed events en route to winning gold at the WorldSkills competition.
Article CoolingRefrigeration

Golden Touch For Scheideman

October 1, 2013 Patrick Callan

Alberta native takes home top prize in refrigeration and air conditioning category at WorldSkills.

Figure 1 U shape droplet separator
Article Green TechnologyHVAC SystemsRefrigeration

Innovative Conversion Program Targets HCFC-22 Rinks

October 1, 2013 Luc Boily

The City of Montreal has been moving forward with a cooling system conversion program for rinks still using HCFC-22 refrigerant. This motivated in part by the pressures of the Montreal Protocol, which will result in the phase out of HCFC-22

Summit speaker Mike Miller
Article EngineeringHydronics

Summit Offers View Into Future Of Hydronics

October 1, 2013 by hpac

Heating Plumbing Air Conditioning (HPAC) magazine’s inaugural trade show, Modern Hydronics The Summit, offered a rich conference program, a strong line up of speakers, and an array of leading HVAC manufacturers and suppliers. The event garnered an overwhelming response as more

Code will be the catalyst in making DWHR technology work say some manufacturers. Photo EcoInnovation
Article Green TechnologyPlumbing

Building Code Changes A Vanguard For DWHR Systems

October 1, 2013 Patrick Callan

Manufacturers are hopeful that the rest of Canada will follow Ontario’s lead.