ERV / Green Building & Sustainable Home Renovation Information & Advice

...erview of the sections we will cover, allowing you to jump directly to the information you need. The conventional wood burner in a standard home The airtight home challenge: depressurization and air supply Room-sealed wood burners by region The critical importance of stove sizing in high-performance homes Wood stoves ...

...ervation House, the world's first Passive House, which was the best insulated and most airtight home made to that point. So to bring older homes up to modern standards, one of the most important steps is making a home as airtight as possible and installing an HRV or ERV (Heat Recovery and Energy Recovery Ventilation). ...

...ERV) is a system that brings in fresh outdoor air while recovering heat or energy from the stale outgoing air. These systems are essential for maintaining a healthy and comfortable indoor environment in a newly insulated attic and are a core principle of high-performance building design. Ductless ERVs and HRVS such as...

...ERV, you need to read: How to stop smoke from wildfires getting in homes with an ERV or HRV system here. 3. Filter the air inside your home Once you've reduced infiltration of smoke into the home, the next step is to actively remove particles that have already entered. This is the most effective way to lower the concen...

...ERV. And note - One may be better than the other for your climate, but you can't really go 'that' wrong as long as you have one or the other. Key features to evaluate before buying and ERV or ERV in 2026 Evaluating mechanical specifications carefully ensures your chosen system will perform reliably over its operationa...

...erview of preventing CO accumulation and selecting the most effective detection technology for modern high-performance homes. Common sources of carbon monoxide in the home Prevention strategies and risk mitigation Choosing detection technology: dedicated vs. combination alarms Installation requirements and global buil...

...ERV rating. Home air quality is a growing issue as homes become more energy efficient and airtight. Ventilation systems are now standard requirements in most national and regional building codes and serve to provide fresh air to indoor environments, but we should also be aware of the types of toxins we are introducing ...

...ERV or HRV unit for ventilation, as a way to keep your home cooler in summer and warmer in winter while saving a ton of money.  Remember, Insulation is the gift that keeps on giving, long after that fancy new central air conditioning system needs major servicing or replacement.  Why are old homes with air-con in great ...

...ERV's can reduce indoor pollutant levels by constantly changing the air in a building. However, this approach does not work when there is a wildfire in the area, since large amounts of harmful substances are released into the air. Additional measures are needed to conserve indoor air quality during wildfires. Outdoo...

...ERV rating of a filter (Maximum Efficiency Reporting Value), which determines the amount of particulate they collect and the quality of air they expel. As a bench mark, the LEED rating system lists MERV 11 as a 'good' quality , MERV 13 as 'excellent'. The higher the number the better. You always want an airtight house ...

...ERV ventilation exchanger systems. The key questions are: How much fresh air is enough? How much fresh air comes in through the building envelope? What is the difference between an ERV and an HRV? How to choose between an HRV and an ERV? How much fresh air is required in homes and the best way to provide it a...