Heat recovery ventilation / Guides

Heat Recovery Ventilation - Lunos video

Lunos ductless air exchanger

...heating. Heat Recovery Ventilators (HRVs) are an essential component of any air-sealed high performance home, bringing in fresh air and removing moisture. An HRV uses the heat in stale exhaust air to warm incoming fresh air. Until now, this has meant a centralized heat transfer core and a network of ducts feeding and...

DIY air exchanger installation video

DIY Lunos HRV air exchanger installation video

...heat recovery ventilation (HRV) system is very different than what people are probably used to seeing, where air is directed to a centralized core for a heat exchange before being exhausted from the house. Lunos is a decentralized system with a series of self-contained units, each with their own ceramic heat exchange c...

The importance of Cleaning HRV intakes

How to keep your HRV clean and operating efficiently

...heat recovery ventilator) clean would be a good thing to keep high on the priority list. When I say ‘many of us’ are guilty of slacking off a bit, I include myself in that group, but after a recent discovery I will up my game a bit. I have usually inspected and cleaned the filter on my HRV about once a year, likely a...

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

Ventilation & air exchangers

...ventilation systems to remove moisture and provide sufficient fresh air for occupants. Ventilation systems- What is an HRV? Mechanical ventilation systems are known as heat exchangers , HVACs (Heating, Ventilation and Air Conditioning) or HRVs (Heat Recovery Ventilators). The point of these systems is to remove moi...

How to Choose between an HRV and ERV system

Choosing between an HRV and an ERV

...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, we wi...

Solar panels power the Kenogami House in Saguenay, Quebec
Renewable energy

The Kenogami House: Energy systems at the cutting edge of innovation

...heat pumps in this house, an air-to-air heat pump that extracts heat from outside air to heat inside air, and an air-to-water heat pump. The air to water heat pump extracts heat from ambient air inside the home and transfers it to the hot water tank, offering efficient air conditioning in summer. As for heat storage,...

Lockeport Beach House
Real estate

Lockeport Beach House wins Canadian Green Building award

...heat recovery ventilation to minimize heat losses; and Energy Star appliances and LED lighting to minimize electrical loads. The asymmetrical gabled roof also leverages coastal storms, collecting rainwater that is funneled into three 6,700 litre cisterns. The storage tanks are the sole source of water for the house. ...

Prefab Passive House & LEED Kit Homes for Sale in Ontario & North Eastern US
Concept and design

Prefab Passive House & LEED ready kit homes - the future of buying a new home?

...heat sources: An air-heated radiant floor system from Legalett with an estimated 60-70% of the total heat load being provided by solar air heating panels , which also act to pre-heat domestic hot water in the summer. A heat pump that operates down to -25 °C that can triple the heat generated per kWh of electricit...

Habitat workers raise a wall at the the Red River Ex June 2011
LEED Homes

The Canada Green Building Council announces affordable green housing program

...heat recovery, and high performance heating and ventilation systems – saving up to 30 per cent a year in energy and water costs. The homes were completed in three phases over three years, and have now been awarded LEED Gold Certification from the CaGBC. They are now all occupied by very happy families. “Through the g...

Problem areas of air leakage in a home and blower door test being cond
Air and vapour barriers

Airtight Construction of Homes is Essential: "Your house sucks." "Oh yeah? your house blows!"

...Heat Exchanger ventilation, and how to choose All About balanced ventilation with Heat Recovery Ventilation (HRV) or Energy Recovery Ventilation (ERV) systems Air Barriers & How to Install for Air Tight Homes And to see more guide page in the EcoHome Green Building Guides for Sustainable Buildings ...

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...