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How do you insulate an attic in Victorian House in Massachusetts?

...intake. He suggested I get gravity vents. I’m considering adding 4 Gravity Vents: two installed at the highest points of the roof, two at the lowest points of...

Posted by dan sagalyn Dec. 5, 2020, 11:30 p.m. 0 Responses

Can you preheat ERV inlet air?

Have you heard of the option to preheat the ERV/HRV inlet air with a dedicated tube that runs through a heated slab? Similar to a geothermal heat exchanger con...

Posted by A O April 6, 2020, 12:16 p.m. Ground-coupled heat exchanger 2 Responses

When I use my stove hood I get smoke odours in my home, is that due to negative pressure and how do I fix it?

...intake? And do you have a mechanical ventilation system (heat recovery ventilator or HRV)? Lack of either of those and a newly installed stove hood we suspect a...

Posted by Anonymous Dec. 11, 2017, 12:37 p.m. Healthy indoor air quality 1 Responses

How do you install a ground loop for an HRV?

...intake and exhaust direction never change, so what leaves the HRV or ER V is nothing but stale air you are exhausting to the exterior so there is nothing you ne...

Posted by Lee Watt July 10, 2018, 12:43 a.m. HRV and ERV 1 Responses