Exploring Passive House Design - 90% Energy Savings!

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#passivehouse #netzero #undecidedwithmattferrell

[SlayerBG]

Ok my 2 cents as an architect that has actually made passive houses. All of the things said here are true with a couple of caveats. First and most importantly the 5-13% cost increase is very optimistic. That is probably made by comparing expensive construction in an area with very high labor costs and high insulation standards allready. Still if you run the 30year money back callculation its worth it and it provides a higher level of comfort so I still recommend it. Secondly people underestimate how important a good solar gain is, you absolutely need a very sunny plot of land for an European climate so a lot of spots are not good for it. Also the walls are insanely thick to the point of sometimes creating a space issue. 2 foot thick walls are not uncommon. And lastly if you are doing a retrofit to anything resembling a passive house get ready to get your wallet gutted. I have had cases where demolishing the building and building a new passive one is cheaper. Despite all that I have said here I recommend them to all my clients. They are not only green and slightly cheaper in the long run but they are the next level in living comfort so anyone who can afford them should get them.

[jonathanchristopher]

I’m a contractor in the PNW and i find most people don’t want to spend the extra money to build Passive Homes. Ive been pushing ICF(insulated concrete form) construction for years and very few people want to build because of the extra cost involved. They would rather have a larger budget for granite or flooring. Please keep producing videos like this to help make people aware and educate them.

Thank you, JC

[DaveDugdaleColorado]

Before last winter I air sealed my attic, I have not add more insulation in the attic yet, just air sealing. This winter my gas usage has been 15%-20% less. Years ago I upgraded my gas furnace from an 80% unit to a 98% efficient unit, I didn't see any difference to my usage. Air sealing my attic cost me about 10 large cans of spray foam (cheap), the furnace cost me $7, 000.

[robertdavenport]

I lived in a 1955 house that had a passive solar remodel in the late 70s. It was amazingly pleasant in the winter, not to mention, inexpensive to heat. Whoever did that upgrade way back then made that house better to live in than any other house on the block, no question.

[Thickmustard]

Fire would not be my first concern living in a house made of straw. A big bad wolf on the other hand...

[midnight]

Technically speaking, here in Germany Passive Houses are already a little bit outdated. There aren't many of them yet because it takes time to build new stuff and the building industry is always slow to adapt to change, but we already had a few projects to build the first "Negativenergiehäuser", so Negative Energy Houses, which consistently produce more energy per year than they themselves use, through even better insulation, required solar panels on roofs and things like Eisspeicherheizungen (ice storage heating? I don't know the english word for that) which is basicay a giant uninsulated water tank in the garden that you pull heat from in the Winter to make use of the energy that water emits during freezing (the same energy as going from 80°C or 4/5 to the boiling point to 0°C (freezing point) without actually freezing) and then you just let it sit there until the summer, where you can pump all the heat from your home (which isn't much to begin with) into the ice block to melt it again and cool the house in the process. Or drawing heat from the air in the winter months, etc.
There are some pretty wild concepts, but they show effect.

[dallastaylor]

Finding a contractor that can build a passive house is the hard part. Houses, at least in my area, are going down in quality and up in price. The work is shockingly shoddy.

[ExxonMobilCompany]

I’m closing in on my retirement and I’d like to move from Minnesota to a warmer climate, but the prices on homes are stupidly ridiculous and Mortgage prices has been skyrocketing on a roll(currently over 7%) do I just invest my spare cash into stock and wait for a housing crash or should I go ahead to buy a home anyways

[markraiman]

Matt Risinger's build channel does a great job showcasing these types of high efficiency houses.

[mheitchue]

Tesla is not a "solution" but a luxury panacea for the rich.

[MrMorgsan]

I must say your pacing is much better now. The short pauses lets the viewer take in the information and reflect for a moment. Keep up the good work! BTW passive houses is almost industry standard in Sweden.

[BCTKBJ]

Building a passive tiny house for a four person family was a goal of mine for eight years. Did not come to fruition, but would love to see more contractors and architects out there who could do this work. Also thought about combining passivehaus with a permanent, easy maintenance idea—— like building a passivehaus that would last 1000 years. I think that’s the level of design we need to get to if we want to be honest about real sustainability.

[Frank_W.]

I have been following passive or net zero building for years and wish that I could have found one available. Big fan. Thanks Matt!

[richriley]

When I built my shop/garage I wanted it to be totally passively/solar heated. After several years of using the shop, I haven’t needed to use any fossil fuel to heat it. It can be 20 deg. F. outside and will still be 60 to 65 inside. Plenty warm enough for a wood working shop. If you would like to know more, I’d love to share the details with you.

[nathanmrudd]

It’s like all my favorite YouTube channels are coming together. 👍🏻 I like construction and Matt Risinger (Build Network) has a pretty good channel that focuses a lot on the best and latest building science.

[treydonovan]

I bought an Earthship 17 months ago, and have only paid for a tank of propane and half a cord of wood since then (~$250), and haven't even burned all the wood. Pretty amazed.

[DataSmithy]

Conservation of energy should always be the first option, when considering how to make your home and life greener.

[anantha]

Shocked to see my home town (Brook Park, OH) being called out as a potential project for video sponsor The Cooper Foundation. Really proud to see the great work they are doing and the fact that they are supporting wonderful creators like Matt Ferrell. I've already donated for the ADA playground!

[KJSvitko]

Saving energy saves money on utilities year after year.
Passive House buildings are a more comfortable and energy efficient home.

[PlugInCaroo]

*Passive-houses are really awesome!* 👍👍👍 Governments should support such energy efficient buildings.