Mann Engineering

06/01/2026

Ventilation in winter comes with a hidden challenge, especially in Canada.

Buildings need a constant supply of fresh air to maintain indoor air quality, remove contaminants, and keep occupants healthy. But when it’s -10°C, -20°C, or colder outside, every cubic foot of that fresh air has to be heated before it can be delivered indoors.

That’s where the dilemma begins.

The more fresh air you bring in, the more energy you consume. Heating large volumes of cold outdoor air puts a massive demand on mechanical systems, driving up fuel usage, operating costs, and overall energy consumption. Yet reducing ventilation isn’t an option it directly impacts comfort, health, and building performance.

It’s a constant balancing act:
✔️ Provide enough fresh air for healthy indoor environments
✔️ Manage the energy required to heat that air in extreme cold

This is why modern HVAC design is so focused on high-efficiency solutions heat recovery systems, demand-controlled ventilation, high-performance boilers, and smarter controls all working together to reduce the energy penalty of bringing in fresh air.

Because in cold climates, fresh air isn’t just about ventilation it’s one of the biggest energy challenges a building faces.

📩 DM us to know more
📞 416-201-9109
📧 [email protected]

05/27/2026

Saying goodbye to inefficient baseboard heaters
Electric baseboards and window AC units are notoriously inefficient. In our latest project, we replaced them with high-efficiency air-source heat pumps in every suite. The result? A projected 50% or more reduction in total electricity consumption for heating and cooling.

05/27/2026

Why run your building systems at full speed when no one is there?

Traditional Makeup Air Units (MAUs) operate at 100% capacity all the time, leading to wasted energy, higher heating costs, and unnecessary strain on your systems.

At Mann Engineering, we solve this with Variable Frequency Drive (VFD) upgrades and smart occupancy scheduling.

In this video, you will learn:

How ventilation systems waste energy in most buildings
What a VFD does and how it improves efficiency
Why reducing airflow in winter cuts gas consumption
How this simple upgrade delivers strong ROI
If your building is still running at 100%, you’re overspending.

04/30/2026

When industry leaders speak, we listen.

Mark Kesseler, Former VP of Construction & Physical Operations at Greenwic Corp., shares his experience working with Mann Engineering—delivering consistent quality and maximizing value across large-scale projects.

04/29/2026

Outdated system = high costs.

This retrofit changed everything:
✔️ 75–80% lower heating costs
✔️ 33% less electricity usage
✔️ ~1-year payback

This isn’t an upgrade. It’s a smarter way to run your building.

04/24/2026

Can one upgrade cut both electricity and gas costs? Yes.

This installation by Mann Engineering uses a Greenheck makeup air unit with an ABB VFD to adjust airflow based on demand reducing excess outside air, lowering heating (gas) costs, and cutting fan energy use.

💡 Smarter systems = lower costs + better performance.

To know more, email us at [email protected]

03/08/2026

Unlock up to $100,000 in Enbridge incentives for energy-efficient upgrades.

Let Mann Engineering help you design smarter systems, reduce natural gas consumption, and maximize your project savings.

03/06/2026

03/06/2026

Visit us at Mannengineering.com

07/31/2020

https://www.theatlantic.com/health/archive/2020/07/why-arent-we-talking-more-about-airborne-transmission/614737/

How is it that six months into a respiratory pandemic, we are still doing so little to mitigate airborne transmission?