I have a love/hate relationship with Mitsubishi but they deserve credit for transparency with technical information. Anyone can view products and manuals from their website. Also their design software (diamond system builder) is free (but clunky)

mitsubishipro.com/catalog

First time I saw a molding pry bar was probably in the early 2000s. I've been running almost the exact same bar in my carpentry rig ever since. Now adding another to my HVAC toolbelt

Probably a factor but the skilled trade demographic problem has been around since my apprenticeship in the 90s when (at age 20) I was the youngest carpentry apprentice in my trade school

The code thing seems like a factor, but the shift is fairly pronounced and it's hard to square with what I understand of code cycles at the time

What's the most compelling explanation for why housing starts failed to get back on their trendline after the 2008 crash? This isn't adjusted for population so for the past 17 years we've built houses at a rate that's unprecedented outside major economic downturns

This seems like it would eliminate a lot of ambiguity wrt whether the board or something downstream is at fault

I'm not sure on viability, but I'm inclined to carry harnesses coupled with fixed resistors such that I could temporarily replace temperature sensors with fixed resistors, then verify that the board is reading the resistor as temperature correctly

In some cases it's less obvious, and in these cases it could be an intermittent failure of the temp sensor, its wiring or the board to which it's connected

Almost all HVAC temp sensors work via variable electric resistance. It's very common for these to fail. Sometimes a temp sensor has obviously failed - ie it gives incorrect resistance for a known temperature

Fixed an extremely annoying ducted minisplit today that required multiple trips over several weeks. I'm glad it's over but I'm very unhappy with how things went

That's tall! Definitely a trait that cuts both ways lol

Last year my kids were in the same classroom for the SAT and my daughter was waiting in line because the teachers won't let anyone leave. She watches as my son walks by everyone, opens the door and leaves. The kid next to her whispers reverentially "that kid doesn't give a fuck"

If you're a plumber please don't take umbrage at this (which means offense or annoyance)

My son is in some of the smart kid classes but idk about the kids he hangs out with. Apparently a close friend is at the votech hs and wanted to do HVAC but he was too dumb so they had to bump him into plumbing

Yes! My wife (an MD) attended a BJJ/MMA conference years ago and one of the topics was cauliflower ear prevention. Basically the sooner you drain the less likely it is that it will recur. >60% success in the first few hours

You sure that's a car bud?

Disfigurement averted! I think the kid is in his last year or hs now but still not dating so idk if it was even worth it

In the end I reached the dad and then called a bunch of urgent care places until I reached a nurse whose husband had wrestled in college when they were dating. Turned out she used to drain her husband's ears on the couch after his practices so I set the kid up to see her right away

About 30 seconds after he biked away I realized how totally insane that was but I didn't have his number so I had to call my coach while he was at disney for his first vacation in a decade or whatever and anxiously explain what I'd done

It's important to immediately drain cauliflower ear and a lot of doctors don't know it so I keep needles and a sharps box in my truck. So I gave the kid needles and my number and told him to have his dad call me when he got home

Anyway I sort of ended up panicking because the kid already has a few points against him socially and I really didn't want permanent disfigurement on top of the other stuff

My BJJ coach is leaving for vacation today and the last time he went away one of the teenagers got pretty bad cauliflower from the adult class (unrelated to me)

She had me do a whole breakdown and kept using carpentry words back at me to try them out

In carpentry we often use the terms proud or shy to describe cuts that are slightly long or short. Anyway I used proud with my dentist to describe crown height and she immediately recognized it as construction idiom and loved it

Tfw condenser coil cleaning is included in your $125 annual tune-up

90F run at lunch today so people don't stand too close when I fix stuff on their house in the afternoon. Kept them mostly under 8s

3. We generally don't use negative pressure. Negative pressure pulls gases through the entire house. It also doesn't pulls from other random leaks vs pressurize against the work area. Negative pressure is an air change game whereas positive pressure often prevents gases from entering altogether

Opening doors and windows short circuits the positive pressure and routes the air to the new opening. When this happens the foam gases are more likely to enter the house. Open doors and windows will not increase air exchange it just changes the location of the flow from good place to bad

2. We leave outdoor openings in the work area but nowhere else in the house. So if we're working in an attic the last thing we seal is the ridge vent. People are often inclined to open doors and windows and it can be tough to convince them otherwise

1. Pressurize the house during and for 4 hours after installation. We use a blower door which pushes roughly 5500 cubic feet/minute. In most houses this will equal and air change every few minutes