HPAC Magazine


Commercial Design

Large diameter, low speed fans reduced the rate at which Federated Co-operative Ltd.'s warehouse was losing heat.
Article CoolingHeatingHVAC Systems

Movin’ Air

March 1, 2013 by Erin Hsu

Destratification can resolve a number of heating and air quality issues.

Figure 1 Series piping layout.
Article HVAC SystemsHydronics

Multiple Boiler Option

March 1, 2013 by Mark Norris

When and how to use hybrid systems.

Figure 1 Uniform (l) versus non-uniform (r) environment. Mean radiant temperature (MRT) integrates the non-uniform surface temperatures into a single representative value. Operative temperature then integrates the MRT with the dry-bulb temperature (tdb).
Article CoolingEngineeringForced AirGeothermalGreen TechnologyHeatingHVAC SystemsHydronics

READER FAVOURITE FROM HPAC’S ARCHIVE: Formulas For Success

February 1, 2013 by Robert Bean

Solve the mean radiant temperature problems to solve building energy problems.

Exterior design of Welland Toyota results in minimal heat loss.
Article EngineeringGreen TechnologyHydronics

In The Loop

February 1, 2013 by Mike Miller

Radiant system design and performance a key factor in meeting LEED requirements.

Formula 1 Flow equation for water-based systems.
Article EngineeringGreen TechnologyHydronics

Don’t Just Go With The Flow

February 1, 2013 by Ryan Westlund

Creating hydronic radiant equipment schedules is the key to successful radiant projects.

Reconditioning and leveling the surface.
Article EngineeringGreen TechnologyHVAC SystemsRefrigeration

A Solution For The Future

February 1, 2013 by Luc Boily

Marcel-Dutil Arena in Quebec is the first rink in the world that uses 100 per cent carbon dioxide in its cooling system.

News CoolingEngineeringGreen TechnologyHPAC GeneralHVAC Systems

Danfoss expands its compressor portfolio

January 21, 2013

Danfoss has extended its compressor portfolio up to 200 tons following the full acquisition of Danfoss Turbocor, in which Danfoss has had a 50 per cent owner’s share since 2004. Danfoss Turbocor develops, produces and markets high-efficiency variable speed compressors in the capacity

News CoolingEngineeringForced AirGreen TechnologyHeatingHPAC GeneralHVAC Systems

Registration opens for Montreal balancing and commissioning conference

January 4, 2013

The National Environmental Balancing Bureau (NEBB) will hold its 2013 Annual Conference in Montreal at the Hyatt Regency, marking the first time the conference has been held outside the U.S. The conference agenda features industry experts who will be addressing

News GeothermalGreen TechnologyHeat PumpsHPAC GeneralHVAC SystemsSolar

Renewable Heating Workshop to explore options for Canadian consumers

November 22, 2012

Solar and geothermal industries work together to explore technology and policy

News Green TechnologyHPAC GeneralPlumbing

Groups scrutinize reclaimed water use

October 31, 2012

Alternative Solutions Guide for Reclaimed Water Reuse, a new Fact Sheet available from Alberta Municipal Affairs, was developed by the Reclaimed Water Working Group. Established by The Government of Alberta, the group is tasked to develop a framework to facilitate

News HPAC GeneralPlumbing

Water-use efficiency objective considered for building and plumbing codes

October 17, 2012

A proposed addition of a water-use efficiency objective for the National Building Code and National Plumbing Code is being considered. The Canadian Commission on Building and Fire Codes (CCBFC) is expanding the mandate of the Joint Group Task Force on

News CoolingForced AirHeat PumpsHPAC GeneralHydronicsPlumbing

Fall 2012 public review of proposed changes to 2010 National Codes

September 17, 2012

The Canadian Commission on Building and Fire Codes (CCBFC) invites interested parties to take part in the fall 2012 public review of proposed changes to the 2010 editions of the National Model Construction Codes. The review runs until November 16,

News CoolingEngineeringForced AirGeothermalHeat PumpsHeatingHPAC GeneralHVAC SystemsHydronicsPlumbingSolar

New methodology in effect for LEED Regional Priority Credits

September 4, 2012

The LEED Canada 2009 rating systems introduced the concept of Regional Priority Credits (RPCs) to incentify the achievement of credits that address geographically specific environmental priorities. For each rating system and each region of Canada, a series of six RPCs

News Green TechnologyHPAC GeneralHVAC Systems

North American energy efficiency revenues to double by 2020

July 18, 2012

Efforts to retrofit commercial and public buildings to make them more energy-efficient have many different drivers, including a sense of social responsibility to reduce greenhouse gases (GHGs) and carbon footprints, an attempt to retain tenants and gain a market edge

News CoolingForced AirHeatingHPAC GeneralHVAC SystemsRefrigeration

Share your commissioning, ventilating, adjusting and balancing expertise

July 4, 2012

The National Environmental Balancing Bureau (NEBB) will hold its 2013 annual conference at the Hyatt Regency in Montreal, QC on May 2-4. It will address the theme Solutions for Optimizing High Performance Buildings. A call for papers is currently open.

News EngineeringHPAC GeneralHVAC Systems

Report reveals positive program results

April 29, 2012

The Building Owners and Managers Association of Canada (BOMA Canada) has released the English version of its third annual BOMA BESt (Building Environmental Standards) program Energy and Environmental Report (referred to as BBEER). The report offers relevant and timely information

News EngineeringGreen TechnologyHPAC General

Government office first to receive highest level of LEED Canada certification

April 26, 2012

The MOE’s Queen’s Park office on the 10th and 11th Floor of Ferguson Block has received LEED CI Platinum – the first government office to receive the highest level of LEED Canada certification. The Toronto office is home to over

News HPAC GeneralHVAC Systems

Cofely completes Adelt acquisition

April 23, 2012

The recent takeover of Adelt Mechanical Works by Cofely enables Quebec-based Cofely to offer its services across Canada. Adelt, which has annual revenues of  60M $, has operated from offices in Toronto and Vancouver since 1977 and employs approximately 275

News GeothermalHeat PumpsHPAC GeneralHVAC SystemsHydronicsSolar

Hydronic workshops showcase renewable energy applications

April 10, 2012

Sustainability, innovation and new technology will be the focus of the 2012 edition of the CIPHEX West trade show in Vancouver.  The largest event in Western Canada for plumbing, HVAC/R and water treatment, CIPHEX West will take place at the

Jean Gobeil estimates that the buildings will require about 13 000 metric tons of wood chips annually to meet their heating needs.
Article Green TechnologyHeatingHVAC Systems

Greenhouse Company Embraces Biomass

April 1, 2012 by Luc Boily

Les Serres Lefort Inc., a Sainte-Clotilde-de-Châteauguay, QC-based specialty greenhouse company dedicated to the production of seedlings, recently unveiled its new biomass heating system. The leading edge system consists of two 6000 kW boilers, an open buffer tank of 1.3 million

News CoolingEngineeringForced AirGreen TechnologyHeatingHPAC GeneralHVAC Systems

Free webcast highlights dedicated outdoor air systems

March 19, 2012

  While conventional HVAC systems mix fresh outdoor air with the return air in one unit, dedicated outdoor air systems use standard equipment to condition fresh air separately before it enters the building. This break from tradition is quickly becoming

News Green TechnologyHPAC GeneralHVAC Systems

Online presentations available for the 2011 National Energy Code for Buildings

March 19, 2012

Free online presentations explaining the major technical requirements in the 2011 National Energy Code of Canada for Buildings (NECB) are now available on the National Codes website. These presentations, which replace the cross-country seminars traditionally offered during past model code

News CoolingForced AirGeothermalHeatingHPAC GeneralHydronicsPlumbing

Watts Water Technologies, Inc. Completes Acquisition of tekmar Control Systems

February 21, 2012

Watts Water Technologies, Inc. has completed the acquisition of tekmar Control Systems in a share purchase transaction. tekmar is a designer and manufacturer of control solutions for a HVAC applications, including a range of hydronic systems. tekmar had annual revenues

News GeothermalGreen TechnologyHPAC General

Call for papers issued

February 13, 2012

ASHRAE has sent out a call for papers for its 2013 Winter Conference taking place from January 26-30, 2013 in Dallas, TX. Next year’s conference will include the following tracks: HVAC&R systems and equipment, HVAC&R fundamental and applications, refrigeration tracks,

News CoolingForced AirGeothermalGreen TechnologyHeat PumpsHeatingHPAC GeneralHydronicsPlumbingRefrigerationSolar

Green building trends for 2012

February 13, 2012

Earth Advantage Institute (EAI) director of marketing Tom Breunig recently wrote Green Crystal Ball: 10 Green Building Predictions For 2012. The article discusses the EAI’s annual 10 green building predictions, which include: urban density, green multi-family homes, energy education for

Table 1
Article HVAC Systems

Together Forever

January 1, 2012 by Robert Bean

The influence of building materials, furnishings, finishings and a creative solution involving HVAC and interior design.