EV thread

[ColoJeep]

This makes a massive difference, regardless of the type of heating/cooling system used.

This can't be stated enough ! Super insulation is the concept we used when we built our home in the mid 80's.
The wall sections are R - 45 and the ceiling is R - 41. A heat loss study was performed on the house and it takes 216 btus per degree difference from the inside temp to the outside temp. In other words if it's - 30 F. outside and 70 F. inside it requires 21,600 btu's per hour for our small 1344 sq. ft. home at 9052' elevation in the Rockies . We heat with a biomass stove and " waste heat " from appliances and cooking.

 

[KennethS]

In other words if it's - 30 F. outside

I would be moving if it ever got that cold where I lived.

 

[ColoJeep]

I would be moving if it ever got that cold where I lived.

It happens about every 15 years , but don't tell anyone , the last thing I need is more liberal east coast or Kali people moving here !

 

[freedom_in_4low]

This can't be stated enough ! Super insulation is the concept we used when we built our home in the mid 80's.
The wall sections are R - 45 and the ceiling is R - 41. A heat loss study was performed on the house and it takes 216 btus per degree difference from the inside temp to the outside temp. In other words if it's - 30 F. outside and 70 F. inside it requires 21,600 btu's per hour for our small 1344 sq. ft. home at 9052' elevation in the Rockies . We heat with a biomass stove and " waste heat " from appliances and cooking.

How are your walls built to get R45?

That's an insanely small heat load for that temperature difference.

 

[chili_pepper]

How are your walls built to get R45?

I would guess some combination of insulated sheathing on top of structural sheathing with insulation in the wall cavities. Or maybe double stud exterior walls, essentially two parallel framed walls with space between them, the void being filled with insulation. Everything, including OSB, has an R value, though it may be negligible in and of itself. While I've never personally seen a wall system with R values that high (not common in the Mid-Atlantic), I assume it's possible with the right materials.

Edit, here's an example:

 

[freedom_in_4low]

I would guess some combination of insulated sheathing on top of structural sheathing with insulation in the wall cavities. Or maybe double stud exterior walls, essentially two parallel framed walls with space between them, the void being filled with insulation. Everything, including OSB, has an R value, though it may be negligible in and of itself. While I've never seen a wall system with R values that high, I assume it's possible with the right materials.

Yeah, I'm mostly thinking about how thick they must be. Even closed cell foam is R7 per inch, open cell and fiberglass is about half that, so depending on what insulation tech was available in the 80s those walls would have to be a solid foot, which then makes me think about unconventional construction methods like structural foam, concrete, etc.

 

[ColoJeep]

How are your walls built to get R45?

That's an insanely small heat load for that temperature difference.

We built some what conventional , just way over kill , 2 X 12" Douglas Fir framing , R - 38 fiberglass , thin exterior insulating board under 15/32 nds 5 ply Doug fir plywood. and a continuous 6 mil. poly vapor barrier under 1/2 " sheetrock. I forget the exact value , but air film boundary layers are also figured in.

I wanted to have a active solar system heating radiant hydronic floors , (Gypcrete ) . However my wife and I were doing all the work and when she became pregnant it changed our time line and cash flow. I ended up using electric base board heat because it was quick , easy and we were poor.
After life settled down it didn't make a ton of financial sense to invest a lot in unconventional heating strategies since our costs were so low.
We use a wood pellet stove to supply auxiliary heat when needed. Our infiltration is about 1/3 of an air exchange per hour without any mechanical air exchange system. This is the main area I'm interested in looking into.

 

[chili_pepper]

Nowadays, you can actually get R12 out of insulated structural sheathing alone...Huber makes an R12 version of their Zip-R sheathing. I've done a few buildings with this material.

 

[LukesfirstJeep]

How are your walls built to get R45?

ICF is another way.

https://newhousebuilder.com/insulated-concrete-forms/
We looked at these when we built our new camp. Since the camp would not be heated 27/7, only when in use, we only did ICF for the basement walls. We were under the assumption that the thermal mass was too great to heat quickly. If you went to camp on a Friday, it would take all weekend to get up to temperature. Once heated, it wouldn't take a lot to keep at temperature.

 

[Rickyd]

Our infiltration is about 1/3 of an air exchange per hour without any mechanical air exchange system. This is the main area I'm interested in looking into.

I always wondered how much difference it would make in heating if my stoves air intake was routed outside.that way it wouldn't continuously draft cold air into the house.

 

[Apparition]

Ford to scale back planned $3.5 billion electric vehicle battery plant in Michigan​

Ford said Tuesday it is scaling back a planned $3.5 billion investment in an electric vehicle battery plant in Michigan. The news comes as U.S. automakers look to scale down their aggressive production targets for the vehicles amid slower-than-expected consumer demand.

Ford officials said they still plan to move forward with the construction of the Marshall, Michigan, EV battery factory and its planned opening in 2026, but the company noted they are “re-timing and resizing some investments.”

https://www.washingtonexaminer.com/news/business/ford-scale-back-ev-battery-plant-michigan

 

[KennethS]

slower-than-expected consumer demand.​

Dang, who saw that coming?

 

[InOmaha]

https://twitter.com/x/status/1727780921812697178

 

[srimes]

 

[chili_pepper]

View attachment 477052

Towed away after being deemed a visual blight on the neighborhood?

 

[Zorba]

Towed away after being deemed a visual blight on the neighborhood?

Damn that thing's ugly.

 

[DaveC]

Damn that thing's Fugly.

FIFY

 

[BlueC]

View attachment 477052

Is that Rough Country's product development truck?

 

[zebra12]

Towed away after being deemed a visual blight on the neighborhood?

Toss-up, San Francisco is pretty bad.

 

[Rickyd]

Toss-up, San Francisco is pretty bad.

Piss and shit everywhere.homeless crazies doing drugs right in front of the cops. Chinatown is a lot cleaner though. I bet they put the homeless who don't take the hint and leave into the "pork" menu