Air circulation / Guides

Aeratron AE2 ceiling fan
Ventilation

Ceiling fans and air circulation- video

...air needs to move around. Our air source heat pump and our heat pump water heater work together in boosting the efficiency, and the ceiling fan is a big part of making that happen. This video explains the relationship between those systems. Thanks to our sponsor Aeratron for providing super efficient and quiet ceiling ...

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

Ventilation & air exchangers

...Air Conditioning) or HRVs (Heat Recovery Ventilators). The point of these systems is to remove moisture and provide fresh air to your home that is pre-heated by the outgoing air. © Van EE The core of an HRV has small separated channels that air passes through, allowing incoming air to be preheated by exhaust ai...

HEPA filters & SMART Air Filters catch airborne dust, pollen, allergens, viruses
Healthy indoor air quality

Buying guide for home air filters in furnaces - HEPA, SMART or Regular?

...air filters used for? Air filters on air handling units such as furnaces, HRV and ERV systems are intended to clean and purify the air before it enters the ducts of your home, to protect indoor air quality from being contaminated with airborne particulate. Dust, dirt, and pollen in the air of homes is shown to have n...

How to Vent Roofs - the Methods, Vent Types, Fans
Walls and Roofs

Why Roofs need to be ventilated and how to ventilate a roof properly

...air rises, so there is always more air pressure at the higher points of any house or building, as in the top floor ceiling. And air will find any hole no matter how small it is. Wind pressure as well as interior mechanical ventilation also affects the air pressure in a home and will force air out any breach in your air...

7 Principles of a super abundant, solar, year round greenhouse
Greenhouses and Sunrooms / Solariums

7 key principles for an abundant greenhouse

...air will rise. See more on ventilation strategies on our blog here . We recommend installing circulation fans to keep air moving on cold days when ventilation is limited. This helps reduce pest problems and ensures stronger, healthier plants. Beyond that, make sure you build healthy soil in your greenhouse, whether...

Frost in Attics: What causes Attic Ice? How to Fix it?
Roof assemblies - renovation

Why is there frost in my attic? Is ice in roofs a problem & How do I stop it?

...air baffles ensure soffit ventilation works properly © InterNACHI Some builders have expressed concerned that ridge vents aren't sufficient because they can be blocked by snow, but snow isn't an air barrier. It will slow the air, but as long as the vent runs the length of the roof there should be enough air flowing...

Kitchen and Bathroom design tips
Kitchens

Design ideas for durable kitchens and bathrooms

...air exchanger . With the amount of moisture generated this is as good an exhaust intake location as you will find. Kitchen fans should be vented directly outside, and the shorter the run the better. Don't send it through your air exchanger, that's an expensive machine with small air channels that won't last long if f...

Off-grid leed home
Off-grid and Net-Zero Housing

Off-grid living blog post 5: appliances, mechanical and other systems

...air out of the house while bringing fresh air in. All sorts of gases can build up inside homes, from cooking, off-gassing from materials, even simple human habitation , and these are vented to the outside when bringing in fresh air. Second, an HRV exchanges heat from the venting air with incoming air in a heat exchange...

Indoor hydroponic vegetable garden
Food production

Growing food indoors

...air circulation and adequate space for the development of the plants. The system is quite flexible and can be adapted easily to any type of window. There is a small tank for the nutrient mix at the bottom of each column that will last for one to seven days depending on the number of plants and management of the water...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...air with a device like a heat recovery ventilator (HRV). Blower door test to check for air permeability being conducted © Ecohome Airtightness is measured in air changes per hour (ACH), which measures the total volume of air inside a building, and how many times in one hour that this much air would be replaced ...

Canada's first LEED V4 Platinum certified home - The Edelweiss House
LEED Homes

Canada's first LEED V4 Platinum house - An EcoHome project checklist

...air to air heat pump installation Air-to-water hybrid electric heat pump hot water heater High performance HRV ventilation system High efficiency ceiling fans for air circulation Triple-glazed argon filled wooden framed passive house standard windows First performance benchmark for Edelweiss: Passive Solar ...