Energy efficiency / Discussions

What is the best brand for ductless mini-split HVAC system?

...efficiency falls off the colder the exterior air temperature gets. Mitsubishi has an infrared tracking feature that we like as it points conditioned air at us...

Posted by Babak K July 12, 2020, 11:22 p.m. Heating and cooling 2 Responses

Do you recommend ERV or HRV system in mild climates or can do away with them?

...energy recovery. Here is our page on Choosing Between an HRV and an ERV . As for brands, we have used Van EE, Venmar, Lifebreath, Zehnder and other brands i...

Posted by Babak K Aug. 1, 2020, 7:12 p.m. HRV and ERV 1 Responses

Should we renovate or get a Prefab Kit house?

Hello, My husband and I are considering our options for our home and lot in Peterborough, ON Canada. We have been thinking of completely renovating our current...

Posted by Ali Mackenzie Aug. 12, 2020, 7:44 p.m. Concept and design 1 Responses

How you vent a metal roof?

...energy efficiency - to think of it in its true essence, 'Building Code' requirements are the defining point of the worst performing house that you are legally a...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

What do I in my basement where new insulation meets old?

I’m insulating my basement with 2” of EPS against poured concrete foundation, then framing a 2x4 wall, then adding Rockwool. Unfortunately, due to some areas, ...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

Should I insulate my basement ceiling?

...energy efficiency and to provide comfort for the one winter that you’d be without basement insulation, I wouldn’t do it. I think you would come out far ahead by...

Posted by Nina Hartt March 21, 2019, 8:23 a.m. Basements improvements 1 Responses

Is it possible to connect greenhouse with the building?

...energy efficiency and durability since they can add a significant amount of moisture to a home. We much prefer to see a greenhouse separated from a house, and...

Posted by Julia Jedrys March 31, 2020, 6:47 p.m. Greenhouses and Sunrooms / Solariums 1 Responses

What is your recommendation for an air source heat pump?

I have a 36' x 36' cottage style bungalow with 2 x 6 walls with spray foamed 9' walls, vaulted southern kitchen and living room with passive solar window desig...

Posted by Martin Dandeneau July 9, 2020, 2:30 p.m. Heating and cooling 3 Responses

Will I save energy by lowering my thermostat at night?

...energy it will use. Heat loss increases with a greater differential in temperature, so the warmer it is inside compared to outside the greater your heat loss wi...

Posted by Ryan Peterson May 1, 2018, 11:51 a.m. Heating and cooling 4 Responses

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

...energy-efficiency you need to be careful not to trap moisture inside walls. What you read about installing a poly vapor barrier on the outside of a building is ...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 3 Responses

What is the best option for building our next resilient home?

...energy efficiency, durability, safe indoor air quality and responsible material choices etc. I would point you to our guide pages to search by category or keywo...

Posted by John Bae Aug. 27, 2019, 3:55 p.m. Efficient home design 1 Responses

Can I see details about the heating and domestic hot water systems of the Edelweiss house?

...efficiency’ to the water heater. An even greater benefit is in the summer months as the water heater in effect acts to cool the air in the house, so much so t...

Posted by August Wehrmann March 10, 2019, 9:26 a.m. Heat pumps, geothermal and AC 3 Responses

What is the payout for converting from gas heat to electric heat?

...efficiency and cost of electric heating here this page – Why Electric Heating Systems are Best for Zero Energy Homes Even in Canada where that heat is a ben...

Posted by Fred Beaulac Jan. 24, 2020, 10:38 a.m. Heating with electricity 1 Responses

How do you remove moisture and condensation from basement walls?

We recently moved into a 15 year old home and have a smell coming from the basement. We had a mold inspector test and look everywhere and found no issues. We t...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

What are the foundation options for a prefab house?

...energy efficiency given the cliimate. You can see a time lapse video of it here – Solar air heated slab on grade time lapse install video That slab has air ...

Posted by Richard Bowie Nov. 20, 2020, 3:40 p.m. Foundations and Basements 2 Responses

Basement reno - How do I effectively insulate my basement?

...energy efficiency, but also for comfort as you seem to be planning this as finished living space. R3 would leave your feet pretty cold. And from a constructio...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses