About us
Training Manual
Quick Links
Recent Posts
God’s Earth, Our Responsibility: The Faithful Path to Clean Energy
Long before climate change became a headline, Scripture called us to care for creation. In today’s world, choosing clean energy isn’t just smart—it’s sacred. As people of faith, we have the opportunity to align our values with our actions and leave behind a legacy of life, not loss.
HVAC logic improvements
APS has developed many unique HVAC logic circuits: improving comfort and reducing energy consumption. The reductions caused the avoidance of over 60,000 person-years of GHG emissions with a three-person crew.
A climate in crisis. There is a workable solution
APS Controls introduces an internationally patented invention capable of reducing global fossil fuel consumption by over 33%, which could save $832 billion annually. Despite its potential, the invention faces rejection from governments, universities, and environmental organizations without substantive technical critique.
A great asset to DDSB
David has been our primary Controls Contractor for last 25 years. We are always surprised that even today he comes up with new and innovative designs.
Letter of support
David Strain’s invention demonstrated an efficiency advantage greater than 15°/o favoring the diamondshaped
actuator over a conventional actuator.
Questions?
Our Business
Analysts of Pneumatic Systems Limited (APS) is a pneumatic controls company specializing in retrofitting Industrial, Commercial and Institutional (ICI) buildings for energy efficiency. Using logic systems designed by President and owner, David Strain, APS has saved millions of dollars in heating and cooling costs in over 45 years in business. These cost savings also translate into a significant reduction in pollution, benefiting our environment. In the spirit of environmental stewardship APS makes their innovative ideas available to anyone who may be looking to improve their systems performance. Please see our R&D section for more information on these designs and to download case studies.
Our Mission
Savings
Our specialty is energy conservation for Heating Ventilation and Air Conditioning (HVAC) systems.
Our customers have realized over $100 million in energy savings by retrofitting their systems to be more energy efficient. More importantly, these savings are passed on to the environment.
I have know Dave Strain for 27 years and his dedication to improve the Environment through his Pneumatic Control Strategies and Hydraulic Experiments have been a great asset to the Durham District School Board. Without them we would have not been able to achieve the millions of dollars in savings over all of those years.
Alex Chasczewski,
Manager of Energy and Mechanical Design (1996-2004) at Durham District School Board
Research & Development
APS is known for their innovative approach to common problems. Over the years we have heard many concerns that comfort will be sacrificed if energy savings are to be gained. Others worry that set-back are undermined by additional energy required to bring systems up to full capacity. Many people don’t know that buildings are ventilated through the HVAC system, as required by law, and feel the need to supplement ventilation. This can be a very costly mistake.
To help people gain a better understanding of how heating and cooling systems work, APS considers common situations, concerns and misconceptions and prepares case studies to help address these areas. APS also works on innovative new solutions to the problem of climate change.
Training
With over 30 years in business, APS shares their knowledge with others. Operating on the philosophy that we are all responsible for the health of our environment, APS offers their knowledge and expertise to others in the following capacities.
Case Studies
All of the case studies developed by APS are made public domain for the sake of the health of our common environment. These studies provide others with an overview of solutions to common issues with control systems that result in reduced energy consumption and associated emissions.