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jessetayriver.bsky.social
HVAC, catastrophic/x-risks, EA
144 posts 929 followers 153 following
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Posts 14 Comments 36

Testing which terminals on this relay close using 12v DC power from my truck looks like something from bad idea jeans

submitted 21 hours ago • 0 comments

Just trying to get a conversation started

submitted 3 days ago • 0 comments

I also condemn whoever this is. Also happy to meet with them and kick them out or whatever

submitted 4 days ago • 1 comment

I haven't heard this discussed but the way I graphically show heating a house with an air source heat pump is basically the econ 101 supply and demand graph

submitted 36 days ago • 1 comment

Taken from a Swiss prefab plant. Not sure if this is common but it seems odd that this isn't substantially better tech than a pneumatic stapler that's common to job sites. The main efficiency gain appears to be waist-high tables

submitted 42 days ago • 3 comments

My kids' school had an overnight "fire alarm". It's somewhat more likely to be a CO/smoke detector that's correctly triggering on CO. Things I'd check 1) natural draft boiler or water heater, possibly coming out of thermostatic setback not drafting due to cold flue piping.

submitted 43 days ago • 1 comment

One of the reasons I think HVAC is dominated by incompetence vs just greed is because people often can't buy their way into higher performance. So extremely high-end houses end up with some of the worst performance as their systems become increasingly complex

submitted 56 days ago • 0 comments

First crepe attempt on the truck kitchen

submitted 73 days ago • 0 comments

It's mystifying that in the post WW2 era the US and Canada rapidly embraced radically new building techniques. Apparently there are weaker European versions, (eg German prefab) but these don't appear to rival the NA changes despite portions of Europe being substantially destroyed

submitted 78 days ago • 0 comments

Here's a list of things people should generally forego in favor of improving building thermal characteristics. Zoning an HVAC system, humidifiers, dedicated room duct returns, two stage AC (cold climate), ≥18 seer ac (split not minisplit), hydronic distribution

submitted 87 days ago • 0 comments

Something that gets a fair amount of attention is people getting stuck in ideological ruts, usually related to politics, that derail them for years or decades. Yet this is also prevalent in engineering and technical domains, often with equally tragic results 1/2

submitted 89 days ago • 1 comment

If you can use your fossil fuel billing history to size a replacement heating system more accurately than using design software docs.google.com/spreadsheets...

submitted 91 days ago • 2 comments

People often approach solved technical problems as though they're an expression of personal preference without a correct answer. Very few residential bathrooms have a toilet paper holder in the correct location

submitted 93 days ago • 0 comments

One of my brothers is in Kona and sent me this. I raced there in 2003. Feels like a lifetime ago

submitted 99 days ago • 0 comments