Jesse Smith
@jessetayriver.bsky.social
HVAC, catastrophic/x-risks, EA
People think doors and windows are responsible for a loads of air leakage but they're not. How do I know? Because we've systematically measured leakage in almost every building we improved for the past 15 years
May 10, 2025 at 2:56 AM
People think doors and windows are responsible for a loads of air leakage but they're not. How do I know? Because we've systematically measured leakage in almost every building we improved for the past 15 years
Testing which terminals on this relay close using 12v DC power from my truck looks like something from bad idea jeans
March 20, 2025 at 4:33 PM
Testing which terminals on this relay close using 12v DC power from my truck looks like something from bad idea jeans
Just trying to get a conversation started
March 17, 2025 at 6:11 PM
Just trying to get a conversation started
You had a disagreement over philosophy with someone on the internet and typed "my enemy". Might be time to calm down a bit
March 17, 2025 at 6:01 PM
You had a disagreement over philosophy with someone on the internet and typed "my enemy". Might be time to calm down a bit
Fossil fuel devices aren't exactly this but it's pretty close. So boilers and furnaces are much easier to understand. This is one of the major problems that ashp proponents have to contend
February 12, 2025 at 8:06 PM
Fossil fuel devices aren't exactly this but it's pretty close. So boilers and furnaces are much easier to understand. This is one of the major problems that ashp proponents have to contend
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
February 12, 2025 at 8:06 PM
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
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
February 7, 2025 at 2:46 AM
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
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.
February 5, 2025 at 4:56 PM
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.
First crepe attempt on the truck kitchen
January 6, 2025 at 8:57 PM
First crepe attempt on the truck kitchen
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
December 17, 2024 at 2:55 PM
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
One of my brothers is in Kona and sent me this. I raced there in 2003. Feels like a lifetime ago
December 11, 2024 at 8:38 PM
One of my brothers is in Kona and sent me this. I raced there in 2003. Feels like a lifetime ago
Something really gratifying about pulling a vacuum <100 microns. Propress fittings are such an improvement, although they won't increase decades of stagnant construction productivity because of land use regulations
December 10, 2024 at 2:43 AM
Something really gratifying about pulling a vacuum <100 microns. Propress fittings are such an improvement, although they won't increase decades of stagnant construction productivity because of land use regulations
Many top contenders, but this from the Hugo Mercier interview was the one that stuck with me the most
December 10, 2024 at 12:08 AM
Many top contenders, but this from the Hugo Mercier interview was the one that stuck with me the most
Here's a good way to kill someone. My friend is on a job where plumbers cut his furnace vent to use for something else and left it exhausted in the basement. Internal furnace safety controls can't detect this so the last line of defense is a carbon monoxide detector
December 9, 2024 at 2:10 PM
Here's a good way to kill someone. My friend is on a job where plumbers cut his furnace vent to use for something else and left it exhausted in the basement. Internal furnace safety controls can't detect this so the last line of defense is a carbon monoxide detector
My son's solo nightly golf session in sub-freezing temps is a real having teenagers plot twist
December 7, 2024 at 2:36 AM
My son's solo nightly golf session in sub-freezing temps is a real having teenagers plot twist
Truck tofu fry-up on my mini split install!
December 2, 2024 at 11:21 PM
Truck tofu fry-up on my mini split install!
Wow! 'The Plot Against the King' has 4.8/5 stars on Amazon and "readers appreciate it's truthfulness" lol
December 1, 2024 at 2:13 AM
Wow! 'The Plot Against the King' has 4.8/5 stars on Amazon and "readers appreciate it's truthfulness" lol
This was one of the funniest instructional books of the 90s. Carrying sheets of plywood up a ladder with a C clamp is probably slightly safer than waiter style, but much less safe than using a crane or telehandler
November 29, 2024 at 4:08 PM
This was one of the funniest instructional books of the 90s. Carrying sheets of plywood up a ladder with a C clamp is probably slightly safer than waiter style, but much less safe than using a crane or telehandler
Back-to-back killer 80k episodes and I'm not saying it because I'm in a good mood
November 23, 2024 at 5:49 PM
Back-to-back killer 80k episodes and I'm not saying it because I'm in a good mood
After a catastrophic event with protracted loss of sunlight people who aren't instrumental to rebooting industry would likely subsistence farm for low light foods. Here's a day in the life of a mushroom farmer
November 18, 2024 at 7:08 PM
After a catastrophic event with protracted loss of sunlight people who aren't instrumental to rebooting industry would likely subsistence farm for low light foods. Here's a day in the life of a mushroom farmer
I'd like to take a minute to thank the entire HVAC industry for sending me all of your customers. Couldn't have done it without you!
October 29, 2024 at 12:45 PM
I'd like to take a minute to thank the entire HVAC industry for sending me all of your customers. Couldn't have done it without you!
Forgot to mention that I have hardwood slabbing mill
September 25, 2024 at 4:15 PM
Forgot to mention that I have hardwood slabbing mill
Cold climate condensation thoughts! Roof sheathing condensation is often confused with bulk water. What distinguishes condensation from water intrusion? 1) it occurs in cold weather vs after rain, 2) roofing nail tips are the coldest point and thus the area around them is the worst
September 14, 2024 at 4:45 PM
Cold climate condensation thoughts! Roof sheathing condensation is often confused with bulk water. What distinguishes condensation from water intrusion? 1) it occurs in cold weather vs after rain, 2) roofing nail tips are the coldest point and thus the area around them is the worst