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Our professional services include HVAC duct design (ductwork layout based on heat loss/gain requirements), radiant in-floor heating design (tubing layout based on required input/output).

Wishing everyone a Happy Thanksgiving Long Weekend from everyone at Red Seal HVAC Designs!
10/10/2026

Wishing everyone a Happy Thanksgiving Long Weekend from everyone at Red Seal HVAC Designs!

Happy Labour Day from Red Seal HVAC Designs!Behind every well-built home are hardworking people who take pride in gettin...
09/07/2026

Happy Labour Day from Red Seal HVAC Designs!

Behind every well-built home are hardworking people who take pride in getting the details right. 🏡

Today, we celebrate the skilled tradespeople, builders, designers, and dedicated professionals who turn plans into places we call home. Your knowledge, craftsmanship, and commitment deserve recognition—not just today, but every day.

To our team, clients, and industry partners: thank you for your hard work, your collaboration, and the trust you place in us.

Whether you’re enjoying a well-earned break or keeping a project moving, we wish you a safe and happy Labour Day! 🍁

Red Seal HVAC Designs | Ontario

𝐖𝐡𝐞𝐧 𝐈𝐬 𝐚𝐧 𝐇𝐕𝐀𝐂 𝐃𝐞𝐬𝐢𝐠𝐧 𝐑𝐞𝐪𝐮𝐢𝐫𝐞𝐝 𝐟𝐨𝐫 𝐚 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐏𝐞𝐫𝐦𝐢𝐭?One of the most common questions we receive is:"𝐃𝐨 𝐈 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐧𝐞𝐞𝐝...
07/20/2026

𝐖𝐡𝐞𝐧 𝐈𝐬 𝐚𝐧 𝐇𝐕𝐀𝐂 𝐃𝐞𝐬𝐢𝐠𝐧 𝐑𝐞𝐪𝐮𝐢𝐫𝐞𝐝 𝐟𝐨𝐫 𝐚 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐏𝐞𝐫𝐦𝐢𝐭?

One of the most common questions we receive is:

"𝐃𝐨 𝐈 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐧𝐞𝐞𝐝 𝐚𝐧 𝐇𝐕𝐀𝐂 𝐝𝐞𝐬𝐢𝐠𝐧 𝐟𝐨𝐫 𝐦𝐲 𝐩𝐫𝐨𝐣𝐞𝐜𝐭?"

The answer depends on the type and scope of work you're planning.

Projects that often require HVAC design include:

✔️ New home construction

✔️ Home additions

✔️ Major renovations

✔️ Mechanical system modifications

The purpose isn't simply to satisfy permit requirements.

A properly prepared HVAC design helps demonstrate that the heating and cooling system has been designed to meet Ontario Building Code requirements and provide the comfort and performance your home needs.

Every project is different, and requirements can vary depending on your municipality and the scope of work.

If you're planning a project and aren't sure whether HVAC design is required, it's always better to ask early rather than discover it after you've submitted your permit application.

📌 𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐩𝐞𝐫𝐦𝐢𝐭 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐛𝐞𝐟𝐨𝐫𝐞 𝐜𝐨𝐧𝐬𝐭𝐫𝐮𝐜𝐭𝐢𝐨𝐧 𝐛𝐞𝐠𝐢𝐧𝐬 𝐜𝐚𝐧 𝐬𝐚𝐯𝐞 𝐭𝐢𝐦𝐞, 𝐫𝐞𝐝𝐮𝐜𝐞 𝐝𝐞𝐥𝐚𝐲𝐬, 𝐚𝐧𝐝 𝐡𝐞𝐥𝐩 𝐤𝐞𝐞𝐩 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐦𝐨𝐯𝐢𝐧𝐠 𝐟𝐨𝐫𝐰𝐚𝐫𝐝.

𝐍𝐨𝐭 𝐄𝐯𝐞𝐫𝐲 𝐇𝐨𝐦𝐞 𝐍𝐞𝐞𝐝𝐬 𝐭𝐡𝐞 𝐒𝐚𝐦𝐞 𝐇𝐕𝐀𝐂 𝐒𝐲𝐬𝐭𝐞𝐦One of the biggest misconceptions we hear is:"What's the best HVAC system for m...
07/16/2026

𝐍𝐨𝐭 𝐄𝐯𝐞𝐫𝐲 𝐇𝐨𝐦𝐞 𝐍𝐞𝐞𝐝𝐬 𝐭𝐡𝐞 𝐒𝐚𝐦𝐞 𝐇𝐕𝐀𝐂 𝐒𝐲𝐬𝐭𝐞𝐦

One of the biggest misconceptions we hear is:

"What's the best HVAC system for my home?"

The better question is:

"𝐖𝐡𝐚𝐭'𝐬 𝐭𝐡𝐞 𝐛𝐞𝐬𝐭 𝐇𝐕𝐀𝐂 𝐬𝐲𝐬𝐭𝐞𝐦 𝐟𝐨𝐫 𝐦𝐲 𝐡𝐨𝐦𝐞?"

No two homes are exactly alike.

A bungalow, a two-storey home, and a custom build may all have completely different heating and cooling requirements—even if they're similar in size.

That's because factors like:

✔️ Home layout
✔️ Window placement
✔️ Insulation levels
✔️ Ceiling heights
✔️ Building orientation
✔️ Air leakage

all influence how a home performs.

That's why professional HVAC design begins with calculations—not assumptions.

The goal isn't to recommend the most expensive system or the latest technology.

It's to recommend the system that's properly matched to your home's unique requirements.

📌 𝐓𝐡𝐞 𝐛𝐞𝐬𝐭 𝐇𝐕𝐀𝐂 𝐬𝐲𝐬𝐭𝐞𝐦 𝐢𝐬𝐧'𝐭 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐩𝐨𝐩𝐮𝐥𝐚𝐫 𝐨𝐧𝐞—𝐢𝐭'𝐬 𝐭𝐡𝐞 𝐨𝐧𝐞 𝐭𝐡𝐚𝐭'𝐬 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐞𝐝 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐚𝐥𝐥𝐲 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐡𝐨𝐦𝐞.

Have you ever wondered why two similar homes can end up with completely different HVAC systems? Let us know in the comments.

𝐍𝐨𝐭 𝐄𝐯𝐞𝐫𝐲 𝐇𝐨𝐦𝐞 𝐍𝐞𝐞𝐝𝐬 𝐓𝐡𝐞 𝐒𝐚𝐦𝐞 𝐇𝐕𝐀𝐂 𝐒𝐲𝐬𝐭𝐞𝐦There is no one-size-fits-all HVAC solution.A bungalow, a two-storey home, and ...
07/13/2026

𝐍𝐨𝐭 𝐄𝐯𝐞𝐫𝐲 𝐇𝐨𝐦𝐞 𝐍𝐞𝐞𝐝𝐬 𝐓𝐡𝐞 𝐒𝐚𝐦𝐞 𝐇𝐕𝐀𝐂 𝐒𝐲𝐬𝐭𝐞𝐦

There is no one-size-fits-all HVAC solution.

A bungalow, a two-storey home, and a custom home may all require different approaches.

The best system depends on factors such as:

✔ Home layout

✔ Building envelope

✔ Heating and cooling loads

✔ Occupancy patterns

Professional HVAC design helps identify the system that best fits the home's actual requirements.

📌 The best HVAC system isn't the most popular one—it's the one designed for your home.

𝐍𝐨𝐭 𝐞𝐯𝐞𝐫𝐲 𝐫𝐨𝐨𝐦 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐡𝐨𝐦𝐞 𝐡𝐚𝐬 𝐭𝐡𝐞 𝐬𝐚𝐦𝐞 𝐡𝐞𝐚𝐭𝐢𝐧𝐠 𝐚𝐧𝐝 𝐜𝐨𝐨𝐥𝐢𝐧𝐠 𝐧𝐞𝐞𝐝𝐬.Think about it:• A south-facing great room with large...
07/12/2026

𝐍𝐨𝐭 𝐞𝐯𝐞𝐫𝐲 𝐫𝐨𝐨𝐦 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐡𝐨𝐦𝐞 𝐡𝐚𝐬 𝐭𝐡𝐞 𝐬𝐚𝐦𝐞 𝐡𝐞𝐚𝐭𝐢𝐧𝐠 𝐚𝐧𝐝 𝐜𝐨𝐨𝐥𝐢𝐧𝐠 𝐧𝐞𝐞𝐝𝐬.

Think about it:

• A south-facing great room with large windows receives much more sunlight than a north-facing bedroom.
• A finished basement behaves differently than the second floor.
• Kitchens generate additional heat from cooking and appliances.

That's why professional HVAC design doesn't treat your home as one large space.

Instead, we perform 𝐫𝐨𝐨𝐦-𝐛𝐲-𝐫𝐨𝐨𝐦 𝐡𝐞𝐚𝐭 𝐥𝐨𝐬𝐬 𝐚𝐧𝐝 𝐡𝐞𝐚𝐭 𝐠𝐚𝐢𝐧 𝐜𝐚𝐥𝐜𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬 to determine how much heating and cooling each room actually requires.

This allows the system to deliver balanced airflow and more consistent comfort throughout the home.

The result?

✔ More even temperatures

✔ Better comfort

✔ Improved energy efficiency

📌 Comfort is designed one room at a time—not with a one-size-fits-all approach.

Happy Canada Day from all of us at Red Seal HVAC Designs! Today, we celebrate the country we’re proud to call home — and...
07/01/2026

Happy Canada Day from all of us at Red Seal HVAC Designs!

Today, we celebrate the country we’re proud to call home — and the communities, families, and homeowners we’re grateful to serve across Ontario.

Wishing everyone a safe, relaxing, and enjoyable Canada Day filled with pride, gratitude, and time well spent with family and friends.

Happy Canada Day!

🏡 Many homeowners assume that a larger HVAC system will automatically provide better comfort.In reality, oversized equip...
06/29/2026

🏡 Many homeowners assume that a larger HVAC system will automatically provide better comfort.

In reality, oversized equipment can create problems. ⚠️

When a system is too large for the home's actual heating and cooling requirements, it may cycle on and off more frequently than intended. 🔁

This can lead to uneven temperatures, reduced efficiency, and increased operating costs over time. 🌡️📉💸

The goal isn't to install the biggest system possible.

The goal is to install the right system for the home. ✅

Proper HVAC design starts with heat loss and heat gain calculations that determine what the house actually needs. 📐🏠

A properly sized system often delivers better comfort, better performance, and lower operating costs than an oversized one. 🙌⚙️💰

📌 Good HVAC design starts with calculations, not assumptions.

🏠 **Not all HVAC drawings are equal.**For building permit approval in Ontario, mechanical documentation must meet certif...
06/25/2026

🏠 **Not all HVAC drawings are equal.**

For building permit approval in Ontario, mechanical documentation must meet certification requirements. ✅

**BCIN-certified HVAC design ensures:**

📐 Heat loss and heat gain calculations are properly performed
⚙️ Equipment is sized in compliance with the Ontario Building Code
🌬️ Duct systems are engineered — not estimated
🏡 Ventilation requirements are addressed
📄 Documentation meets municipal review standards

Certification is not a formality. ❌
It confirms that the mechanical design has been prepared by a qualified professional authorized to provide permit-ready documentation. ✅

Beyond compliance, certification protects your investment by ensuring:

🔧 The system is properly engineered
📈 Performance is considered long-term
🧮 Design decisions are based on calculations
🏠 The final layout makes practical sense for your home

Red Seal HVAC Designs is led by Brian Eadie, supported by a team with over 80 years of combined industry experience. 👷‍♂️🔥

Our role is to provide clear, compliant, performance-driven mechanical design — and guide homeowners through the decision-making process along the way.

📌 If you are preparing for permit submission, confirm that your HVAC design is BCIN-certified before you submit.

📞 Contact us before finalizing your mechanical documentation.

Equipment selection should never happen before proper calculations are completed. 📐Yet many homeowners are asked:“Do you...
06/22/2026

Equipment selection should never happen before proper calculations are completed. 📐

Yet many homeowners are asked:

“Do you want a furnace or a heat pump?” 🔥❄️
“Single-stage or two-stage?” ⚙️
“Add zoning?” 🏠

Without understanding what the home actually requires.

Proper HVAC system selection is determined by:

• Heat loss and heat gain calculations 📊
• Home layout and square footage 🏡
• Insulation levels 🧱
• Window performance 🪟
• Airflow distribution design 🌬️
• Ventilation requirements 💨

Selecting equipment before these factors are analyzed can lead to:

• Oversized systems ⚠️
• Inefficient operation 📉
• Uneven temperatures 🌡️
• Higher long-term operating costs 💸

The correct approach is:

1. Perform accurate calculations. 📐
2. Design the mechanical system. 🛠️
3. Select equipment that matches the engineered requirements. ✅

At Red Seal HVAC Designs, we guide homeowners through these decisions so the final design makes practical sense — not just code minimum compliance.

System selection is not a sales choice.
It is an engineering decision. 🧠

If you are evaluating HVAC options for your build, ensure the selection is based on calculations — not assumptions.

Book a consultation before finalizing your equipment decision. 📅

Address

104 Sextant Pt
Kagawong, ON
P0P1J0

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+17052072336

Website

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