Ventilation / Discussions

What are your thoughts about incorporating natural ventilation techniques into the heating/cooling/ventilation design of a house?

...ventilation (stack effect, night flushing, cross ventilation) along with mechanical ventilation (HRV or ERV) for a mixed mode ventilation strategy? Is there m...

Posted by dean c Jan. 18, 2020, 3:51 p.m. Ventilation 1 Responses

How to fix condensation on ceilings?

Hi! We moved into a house last winter (it is a 50 year old home) and we notice condensation on the ceilings. The house also had plywood soffits with minimal ve...

Posted by Jessica Sadler Nov. 13, 2019, 11:48 a.m. Walls and Roofs 1 Responses

What should I be looking for in a heat recovery ventilator?

...ventilation capacity), measured in CFMs, or cubic feet per minute Performance, or heat recovery rate – meaning the percentage of heat recovered from exhaust a...

Posted by Adam Y. Dec. 11, 2017, 1:07 p.m. HRV and ERV 1 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?

...ventilation system (heat recovery ventilator or HRV)? Lack of either of those and a newly installed stove hood we suspect are at the root of the problem How bac...

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?

...ventilation core where incoming air is pre-heated or pre-cooled by exhaust air. No heating or cooling coil is present, you are simply running a fan, and a heat ...

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

How does a Passive House handle floods?

...ventilation and dehumidification, way more than a house that leaks air could manage. The LEED rating system is more about durability measures than PH, so if y...

Posted by Wendy Tsao May 7, 2018, 12:46 p.m. Foundations and Basements 1 Responses

What materials should I use for a small plumbing job?

...ventilation when using these materials. For hot and cold water feeds to your faucets, copper replaced lead decades ago, and what you are seeing now are PEX pipe...

Posted by H Davis Nov. 28, 2017, 1:30 p.m. Hot water 1 Responses

Is an HRV or ERV system best in a cold climate?

We're getting ready to build "as near as possible to Passive House spec without it costing a dime extra overall" house next year in Northern Minnesota as we wi...

Posted by Michael Duncan Nov. 14, 2019, 3:53 a.m. HRV and ERV 1 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...ventilation could be problematic in the future if/as and when the deck leaks - and footer the present to an extent because the condensation/moisture that would ...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

What is the right amount of insulation for a house?

...ventilation. Monoslope roof climbing south with a large overhang to have a roof over the patio on the south side. I know someone locally that can draw the house...

Posted by Ryan Gerbrandt Feb. 11, 2019, 9:57 a.m. Passive solar home design 4 Responses

Can you Insulate a Cinder block basement foundation with Rockwool?

...Ventilation / Energy Recovery Ventilation). The Rockwool insulation boards can go right against the CMU wall (Rockwool / mineral wool is not harmed by moistur...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

How do you insulated a crawlspace with dirt floor?

We have a cottage with a crawl space near Halliburton, Ontario,Canada. It has a solid block perimeter but has a dirt floor. Also, there is a very large rock un...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 1 Responses

What is the best way to reduce humidity in a basement?

...ventilation in the basement apart from the drafts. There is a sink, the hot water tank with drain off and furnace, and one small window that stays closed to kee...

Posted by Frank Cooper Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

Has anyone used Lunos Ductless HRVs in Alberta and passed inspection?

The home inspector is looking up if anybody in Alberta has used lunos and passed inspection. We don't know of anyone that has used them in Alberta unfortunatel...

Posted by Michelle Dimaano Nov. 4, 2019, 12:41 p.m. HRV and ERV 1 Responses

Can you help me decide between a foundation, slab on grade and crawlspace?

...ventilation ducting in the floor , tubes can be crushed when pouring concrete or corrode. Sleeve your well line in a weeping tile conduit so it as well can be...

Posted by David Davenport Nov. 26, 2018, 12:57 a.m. New foundations and slab-on-grade 1 Responses

What is the optimal setup for mechanical systems for slab on grade?

I'm putting together a design for a medium-sized, super well-insulated slab on grade home. I definitely want a hydronic in floor heat system, along with a heat...

Posted by Dave Nuttall July 6, 2019, 9:42 a.m. Mechanical systems 1 Responses

Does a low radon air reading necessarily = low radon in well water?

...ventilation equipment. I’m not try to spook you here, just making the case for getting your water tested: ) If you have a reading of 33 that’s nice and low, b...

Posted by Steve Bull Jan. 4, 2020, 1:45 p.m. Radon in Homes - Mitigation 3 Responses

If a passive house is designed well is it worth the extra cost for Low E window coatings?

...ventilation. Low-E coatings are something we always recommend whether you’re installing double or triple glazed windows . So when you talk about having a Passiv...

Posted by Joe Van Kuren June 7, 2019, 8:37 p.m. Passive solar home design 1 Responses