ERV for airtight homes in Greater Vancouver

Modern airtight homes hold heat beautifully, but they also seal in stale air, moisture, and odours that older leaky houses used to let escape on their own. In Greater Vancouver, where homes are increasingly built or renovated to tight standards, an energy recovery ventilator (ERV) is often the planned solution for bringing in controlled fresh air. Here is why airtightness and ventilation go hand in hand.

Why Airtight Homes Need Dedicated Ventilation

When a home is sealed tightly to save energy, the natural air leakage that used to dilute indoor moisture and odours largely disappears. Without a deliberate way to bring in fresh air, humidity from showers and cooking, along with everyday smells, can build up and leave the home feeling stuffy. An ERV solves this by continuously exchanging stale indoor air for filtered outdoor air.

The energy recovery part is what makes this practical in our climate. Rather than throwing away the heat and moisture in the air leaving your home, the ERV core transfers much of it to the incoming fresh air, so you ventilate without giving up the comfort and efficiency an airtight home provides.

• Tighter homes trap moisture, odours, and stale air without planned ventilation
• An ERV supplies a steady, filtered stream of fresh outdoor air
• The core recovers heat and moisture so ventilation does not waste energy
• Balanced supply and exhaust keep the home from feeling stuffy or over-pressurized

Getting It Right in Greater Vancouver

For ventilation to do its job in a tight home, the ERV needs to be sized to the home and balanced so the air it supplies matches the air it exhausts. Undersized or poorly balanced ventilation is a common reason airtight homes still feel stale. Filters and the core also need routine cleaning, because in a tight house the ERV may be the home's primary fresh-air source.

If your sealed or recently upgraded home feels stuffy, has lingering moisture on windows, or just never seems to clear odours, the ventilation strategy is worth a look. HeatLand can evaluate whether an ERV is the right fit and how it should be configured for your specific home.

Frequently Asked Questions

Do airtight homes really need an ERV?

Most do need some form of mechanical ventilation. Once a home is sealed tightly enough to be efficient, it no longer breathes on its own, so a balanced ventilator like an ERV is how fresh air is brought in reliably.

Will an ERV make an airtight home cold and drafty?

A properly sized and balanced ERV should not. The core tempers incoming air using the outgoing stream, and good duct placement keeps fresh air from blowing directly on occupied spaces.

How is an ERV sized for my home?

Sizing is based on the home's volume, number of bedrooms, and the ventilation rate it needs. A technician calculates this so the unit moves enough air without over-ventilating.

Are there rebates for adding ventilation?

Some ventilation work can connect to FortisBC or CleanBC programs depending on the scope. HeatLand can confirm what currently applies to your project.

HeatLand Heating & Cooling is a licensed and insured, TSBC-certified HVAC company serving homeowners across Greater Vancouver. Our technicians diagnose the real fault, explain your options in plain language, and complete the work safely and to code.

{“@context”:”https://schema.org”,”@type”:”FAQPage”,”mainEntity”:[{“@type”:”Question”,”name”:”Do airtight homes really need an ERV?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Most do need some form of mechanical ventilation. Once a home is sealed tightly enough to be efficient, it no longer breathes on its own, so a balanced ventilator like an ERV is how fresh air is brought in reliably.”}},{“@type”:”Question”,”name”:”Will an ERV make an airtight home cold and drafty?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”A properly sized and balanced ERV should not. The core tempers incoming air using the outgoing stream, and good duct placement keeps fresh air from blowing directly on occupied spaces.”}},{“@type”:”Question”,”name”:”How is an ERV sized for my home?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Sizing is based on the home’s volume, number of bedrooms, and the ventilation rate it needs. A technician calculates this so the unit moves enough air without over-ventilating.”}},{“@type”:”Question”,”name”:”Are there rebates for adding ventilation?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Some ventilation work can connect to FortisBC or CleanBC programs depending on the scope. HeatLand can confirm what currently applies to your project.”}}]}{“@context”:”https://schema.org”,”@type”:”Article”,”headline”:”ERV for airtight homes in Greater Vancouver”,”publisher”:{“@type”:”Organization”,”name”:”HeatLand Heating & Cooling”,”url”:”https://heatland.ca”},”url”:”https://heatland.ca/erv-for-airtight-homes-greater-vancouver/”}