installing energy recovery ventilation / Guides

Condensation on windows leads to mold & mildew in homes, ERV & HRV systems help
Ventilation

Ventilation & air exchangers

...energy recovery in the USA is the ability to meet the ASHRAE ventilation and energy standards, while improving indoor air quality and reducing total HVAC ratings and energy requirements. ERV technology is not only an effective means of reducing energy cost and heating and cooling loads, but allows for smaller equipme...

Heat Recovery Ventilation - Lunos video
HRV and ERV

Lunos ductless air exchanger

...Energy efficiency : The system has a high heat recovery, and performance is not dependant on the quality of duct installation. Operational cost: The energy required to operate the fan is very low (0.11 - 0.14 W / cfm), corresponding to about $5-10 a year to run all the units, depending on the size of your house and l...

How to Choose between an HRV and ERV system
HRV and ERV

Choosing between an HRV and an ERV

...Energy recovery from exhaust air is becoming common place in cold regions, and two types of equipment can do this - an HRV (Heat Recovery Ventilation) and an ERV (Energy Recovery Ventilation.) Both HRVs and ERVs are somewhat new to mainstream home construction, and can often be confused. In an effort to clear that up...

Decentralized Energy Generation for LEED, Passive House & Green Homes
Renewable energy

Which is the Best Type of Home Energy Generation for Green Homes?

...installing energy recovery ventilation rather than paying for your own personal power generation, so you conserve the energy you have already paid for instead of ramping up your supply of home grown energy. Solar thermal systems in particular can be a great heat source if you have a hydronic heating system . Rather t...

What is Interstitial Condensation? (And how to stop it!)
Walls and Roofs

What is Interstitial Condensation in Walls or Roofs? (And how to stop it!)

...installing adequate heat recovery ventilation , and a dehumidifier sized properly for the volume of air you need to condition if necessary. Ironically, interstitial condensation is more of a common issue in new, modern structures than older structures. This is due to them being built to be both warm and cool, whereas...

Naugler House: the most energy efficient Passive House design in New Brunswick
Efficient home design

New Brunswick's most energy efficient home is Passive House designed

...ventilation: With a PHPP calculated heating load of 7 W/m2, the heating requirements of the Naugler House could easily be met through the HRV ventilation system , eliminating the need and expense of installing a separate heating system. A PH-certified Zehnder Comfoair 200 was chosen for the HRV, with a 92% heat-rec...

Passive home designer Harold Orr, one of the original high performance homes
Passive solar home design

The principal designer of the house that inspired the global Passivhaus movement reflects on the project that started it all.

...recovery unit that used polyethylene film for the heat exchange media. This unit used buoyancy effects and was hot at the top and cold at the bottom. The engineering technician Mr Dick VanEe built the heat recovery unit, and based on his experience building it started a company to make heat recovery ventilation units. ...

Passive House certification - PHI or PHIUS? The Spring House Passive House
Passive House

Everything you need to know about Passive House certification

...energy or that they use their allotted energy in an identical fashion? As for Source Energy, the important thing to understand is that we’re talking about energy at its source. The bulk of energy gets lost in transport - up to two thirds of it here in North America. For every three kilowatts that leaves the power pla...

The Top Twelve Green Building Trends for 2020
Planning and Design

Find out what's trending in 2020 for Green Home Construction

...Energy homes The higher cost of energy combined with an increasing awareness of the global climate crisis is a driving force behind the trend towards more energy-efficient home construction . And Zero Net Energy home construction is a trend that is quickly taking off; read more here about the Canadian Zero Net Energy...

Crawlspace radon barrier installation for radon mitigation
Radon in Homes - Mitigation

Removing radon gas from basements and crawlspaces

...recovery ventilator) or ERV unit (energy recovery ventilator ) dedicated to the basement can be very effective. There is a continuous radon monitor called a Radostat that controls ventilation equipment by activating it when radon levels reach a peak 150 Bq. The HRV will kick in to high speed, and once levels have dropp...

Earthship in Taos, New Mexico, shame they don't work in cold climates
Concept and design

Do Earthships work in cold climates?

...Ventilation: Heat recovery ventilators (HRVs) are mandatory in performance rating systems like LEED, Novoclimat and Passivhaus. They are also mandatory in some regional building codes, but they are not found in Earthships. Instead, an Earthship gets ventilation through what they call earthtubes, and ventilation openi...