APKWS used in Ukraine with Vampire (Vehicle-Agnostic Modular Palletized ISR Rocket Equipment) system mounted on tracks. no planes required
>The Israeli Iron Dome can intercept subsonic cruise missiles and costs about $100k an interception.
prices quoted on Israeli news in past few years are typically around $20k to $40k. $100k was initial pricing before mass production. Obviously it can shoot down shaheds as well
Israel also fielded Iron Beam late last year. It has 10km distance and $2 per shot price (this is even if you use PG&E electricity)
>True, but those linesets introduce other downsides. They can't be cut to length, so you often have to have unsightly loops of extra line set somewhere, and the loops can potentially trap the oils that mix with the refrigerant to lubricate the compressor.
well, i run my through crawlspace. had only a small extra loop. in crawlspace.
>They're also much more expensive,
per unit - yes. but... if you doing to diy mini-split not with precharged lineste, you need vacuum, refrigerant and probably license to buy it. it raises cost and make it viable if you plant to install multiple units (have coworkers that did it).
if you want to get it professionally install, than in addition to ~$1.4k for 2ton unit you look into $6k-$8k for labor. Those were prices year ago for install in garage with 240v line connected to 40amp breaker available at install location.
>Not to mention, installing them without an EPA 608 certification is technically illegal.
technically, i guess much of the work done by home owners must be done by certified professionals and get approvals and inspections.
There is actually good reason to bump up capacity by half a ton to ton, unless currently installed unit was sized recently. The reason for this it's that design temperatures jumped up, sometime in a big way in a recent ashray published design conditions (and many companies don't even know that this is the case and use those from 10 years ago or more).
And even the published numbers tend to be off and they usually use one specific weather station in a region that may or may not have same weather as you.
When I replaced hvac a couple of years ago, I retained company to make manual j calcuation as none of hvac contractors were willing to do it. I provided it with design temperatures that I calculated after scrapping data from a bunch of private weather stations in few miles radius
it doesn't translate. there is a thing called "manual j" calculation, that take into consideration size of house, orientation, insulation, number of rooms. windows in each room, type of windows, appliances, a bunch of other parameters and then how many people live in house. topped of with required temperature inside during winter/summer and outside temperature during winter/summer.
after this you get unit sizing
mr. cool has it's own smart thermostats/apps. you can use it also with nest/ecobee.
with regards to air quality, usually this kind of stuff better managed by dedicated systems.
There are a lot of mentions how onboard audio killed sound cards and that there are usb audio adapters.
This is right till you want something a little bit out of the ordinary: usb dac with 5.1 that supports hardware decoding of DSD/etc . Most of the options have either $x000 price tag. The next best thing is to use A/V Receiver via HDMI
>The Israeli Iron Dome can intercept subsonic cruise missiles and costs about $100k an interception.
prices quoted on Israeli news in past few years are typically around $20k to $40k. $100k was initial pricing before mass production. Obviously it can shoot down shaheds as well
Israel also fielded Iron Beam late last year. It has 10km distance and $2 per shot price (this is even if you use PG&E electricity)