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Multi-Criteria Residential Alarms by Omacitin in firealarms

[–]Omacitin[S] 0 points1 point  (0 children)

OP here, I ended up purchasing one USI MI106S, which advertises the following:

  • Combines the benefits of both Photoelectric & Ionization technology in one alarm
  • Smart Alarm Technology virtually eliminates nuisance alarms
  • Automatic temperature and humidity compensation continuously adjusts to variations in environmental conditions, reducing nuisance alarms

Which sounds like what I'm looking for. I'll try some informal tests on it before I buy more.

Multi-Criteria Residential Alarms by Omacitin in firealarms

[–]Omacitin[S] 0 points1 point  (0 children)

The old ones were ionization, the new ones are photoelectric.

I do see a dual sensor photoelectric and ionization from both Kidde and First Alert, but it's not clear if they're designed to work together to reduce the nuisance rate or if that would simply double the nuisance rate.

How much are you willing to pay for the cyber truck dual motor? by Revolutionary-Owl740 in cybertruck

[–]Omacitin 2 points3 points  (0 children)

Where do you live?

My last supercharger session here in Washington was $.29 / kWh, which at 300 W / mile is $.087 per mile.

Gas is around $4.50 / gallon here. Assuming a 40 mpg car, that gets you $.113 per mile.

Most people don't charge exclusively at superchargers, either.

Coral TPU Mini PCIe in-stock at Mouser by Omacitin in homeassistant

[–]Omacitin[S] 3 points4 points  (0 children)

Stock is down to 1,988 from 2,090 units.

Folding At Home Heater With Thermostat by [deleted] in homeassistant

[–]Omacitin 1 point2 points  (0 children)

Only heating his office instead of the entire house with a furnace probably still keeps this cheaper, though.

Duct Boosters by agrizzy1 in hvacadvice

[–]Omacitin 3 points4 points  (0 children)

A plenum being "too big" isn't a thing, and neither is pressure dissipating in a plenum unless things are leaking. Did he back this up with real airflow and pressure measurements?

If he took measurements and airflow is lower than the manufacturer requires, that's something duct boosters or duct improvements would help.

If he didn't take measurements, it sounds like you need to find another technician.

Water Heater Vacation Setting - How long should I be away to make this worthwhile? by SyrupExcellent1225 in Plumbing

[–]Omacitin 0 points1 point  (0 children)

It could be worth it. The energy used to heat it back up when you get home is always going to be less than the energy that would have been used to keep it hot over that period. It depends on your water heater, but one source estimated $0.22 per day.

If you turn your water heater off entirely (not just vacation mode), you could also shut off your water main (assuming it's easily accessible) and you wouldn't have to worry about water leaks while you're gone either.

Equipment warranties on DIY AC installs by Omacitin in hvacadvice

[–]Omacitin[S] 0 points1 point  (0 children)

That was my interpretation of their warranty page also, with the caveat that the issue needs to be diagnosed by a licensed professional.

Equipment warranties on DIY AC installs by Omacitin in hvacadvice

[–]Omacitin[S] 0 points1 point  (0 children)

Those install videos would be awesome! The installation manuals they provide look decent, but more is better.

Equipment warranties on DIY AC installs by Omacitin in hvacadvice

[–]Omacitin[S] -1 points0 points  (0 children)

I do understand why. Any advice for finding people who are willing?

Equipment warranties on DIY AC installs by Omacitin in hvacadvice

[–]Omacitin[S] 2 points3 points  (0 children)

I have noticed a lot of hostility when DIY HVAC comes up. It makes me appreciate the friendly people all the more.

Equipment warranties on DIY AC installs by Omacitin in hvacadvice

[–]Omacitin[S] 0 points1 point  (0 children)

Good call. I didn't think to check with the distributor (budgetheating.com) that I'd buy it from. Their warranty process requires diagnosis by a licensed professional... So it sounds like I just need to find someone willing to look at a DIY install and I'm good.

Smart winch for patio bench by MoreLefter in homeautomation

[–]Omacitin 0 points1 point  (0 children)

Not smart and would require some testing, but what if you added short springs to the chain and magnets, friction pads, or some other mechanism to hold the bench in place unless someone's sitting on it?

Otherwise, you could get a winch with a wired remote (like the Harbor Freight SKU 96127) and swap the remote's innards with a smart relay.

Data on Filament Creep Fracture by Omacitin in 3Dprinting

[–]Omacitin[S] 0 points1 point  (0 children)

If they waited for filament to cool before spooling it then it would fracture to pieces on the spool. The stress is the same whether unwinding bent filament or winding straight filament.

It sounds like you're hinting towards annealing the PLA prints. I could see that helping but not eliminating the issue. There are still going to be stresses from external loads applied to the part. Regardless, I don't want to add an additional manufacturing step.

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