"HRV"

HRV / Green Building & Sustainable Home Renovation Information & Advice

Healthy indoor air quality

Which houseplants are best for purifying air? Ecohome investigates

...HRVs and ERVs (heat recovery and energy recovery ventilators) that can be added without great hassle to improve indoor air quality. Ductless ventilators simply require feeding a low-voltage wire to units, so no major renovation is required and wires can be fairly easy to hide. See our DIY ductless HRV installation vi...

HRV and ERV

How to keep your HRV clean and operating efficiently

...HRV units is so important When any machine has its normal operation hampered, it will reduce its efficiency and ability to function properly. Many of us are probably guilty of forgetting about basic maintenance of some of the mechanical equipment in our homes; keeping your HRV (heat recovery ventilator) clean would be...

Passive House

Everything you need to know about Passive House certification

...HRV and ERV). PHI set up its own proprietary method of evaluating air exchangers to make an enlightened choice between HRV & ERV and among certified models. If, however, one wants to use a model that hasn’t been evaluated (aka not PH-certified) PHI uses the manufacturer’s specifications and cuts 12% from its effici...

Healthy indoor air quality

Why you should never Install air-con in a home with a vapor barrier

...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 shape wh...

HRV and ERV

Choosing between an HRV and an ERV

...HRV or 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 provi...

Off-grid and Net-Zero Housing

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

...HRV), which serves two purposes. First, the HRV circulates stale 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 exchange...

Air and vapour barriers

Airtight construction of homes is essential: "your house sucks." "Oh yeah? your house blows!"

...HRVs: Heat recovery ventilators (HRV's) need to be professionally balanced in order to keep an even air pressure. Odds are if you haven't had it balanced it is most certainly providing too much or too little air compared to the amount being exhausted. Bathroom fans: If they are designed to run off a humidistat (a switc...

HRV and ERV

DIY Lunos HRV air exchanger installation video

...HRV and ERV home ventilation systems. Find all you need about indoor air quality in the Ecohome Green Building Guide, or see these pages: How to maintain safe indoor air quality in homes How to choose between an HRV and ERV ventilation system Building guide page: Understanding home ventilation Find HRVs and ERV...

Ventilation

Ventilation & air exchangers

...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 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 sep...