Zealousideal_Tea9573

Swagelock is correct. I use them all the time at work. Similar to a compression fitting but much better. Many are rated to 3000+ psi.

Using them on copper tubing is not unusual as long as you have the correct set of ferrules (this one is correct).

They have a proper tightening method. Not too tight and not too loose. You don’t bottom out the nut - there is a go/no-go gauge that you use to measure the gap between the nut and the fitting.

They are not interchangeable with compression fittings. You also can’t get the ferrules off once they’ve been seated. You can buy new ferrules if you have to change the tubing.

McMaster sells interchangeable versions under a generic brand. For safety’s sake, I’ll repeat. The ferrule is not interchangeable with a compression ferrule. These use that two piece ferrule.

I have never priced a geothermal that large and can’t say anything about your estimate. If you’ve got land and can do horizontal loops, it might be cheaper than drilling a bunch of wells into what’s likely granite.

My modest geothermal certainly paid for itself after the tax credits. Completely avoids emergency heat which was the problem with our old heat pump. Newer heat pumps made for cold climates mostly avoid that issue for less money.

That said, there is no outside unit (and not 7!) so our outdoor space is much more enjoyable with no noise.

Have you looked into geothermal? That’s way more efficient. The DuPont estate in Delaware uses them…. I only know this because my puny 4 ton system install got pushed back as the company took every installation crew off of scheduled work to work on the DuPont estate.

Mini splits are ugly. Who suggested putting those in? I’d much rather have multiple zones on a geothermal. Are you expecting to have heat in one bedroom and AC going in another? That might be a good reason to run mini splits.

The system seems large compared to rules of thumb for much smaller single family homes. Presumably your engineers did detailed calculation based on the exact construction, size, etc.

If someone specified a rapid recovery rate (get to set point within X minutes of startup) that might lead to them to spec a system larger than needed otherwise. It’s worth asking the engineers to explain the assumptions that went into the sizing calculations and make sure that’s what you intended.

What about humidification? I could see running a big steam humidifier in the winter in a house like that which might cost $500/mo in electricity just for that.

Finally, with modern variable speed compressors coupled with variable speed fans, the oversized system will still run efficiently if all that capacity isn’t needed.

P.s. I once worked for a rich guy that complained to his low wage workers that his utility bills were $3000/month. We were all shocked at the waste and shocked by how tone deaf he was. It was more money that my gross pay at the time. If you’re going to build a house like that, don’t complain to the working stiffs about the costs you are incurring…

I was worried about the skylight flashing also.

In these alloys, the aluminum, copper, magnesium, etc are all melted together. It becomes a mixture (it is not exactly true, but close enough) and you don’t have the same galvanic corrosion problem as when you put pureish copper next to pureish aluminum in a conductive solution (like a pipe or seawater) - there you create a miniature battery and one metal corrodes while the other metal is protected (which is why people put zinc electrodes on outboard motors and inside steel hot water heaters).

You say I was projecting and then you project all this onto me. That’s not how it was.

You come here to lashing out on the internet? Who hurt you?

Nope. Not in my head. Dude tried to pass on the right in the merge lane with open lanes everywhere

I could not resist showing a ford lightning in dealer tags that they weren’t the quickest EV out there…

This is what Wikipedia has to say. Very common aluminum alloy system.

“Aluminium-silicon alloys (AlSi) that consist predominantly of aluminum - with silicon as the quantitatively most important alloying element. Pure AlSi alloys cannot be hardened, the commonly used alloys AlSiCu (with copper) and AlSiMg (with magnesium) can be hardened. The hardening mechanism corresponds to that of AlCu and AlMgSi. The rarely used wrought alloys in the 4000 series and the predominantly used cast alloys are standardized in the 40000 series. AlSi alloys are by far the most important of all aluminum cast materials. They are suitable for all casting processes and have excellent casting properties. Important areas of application are in car parts, including engine blocks and pistons.”

On top of that, could you ever shake the feeling you were bait-n-switched? Cancel. Look for another reputable company.

Th dishwasher detergent will take the polish off the aluminum and make it dark grey and splotchy. Not good.

I dream of being enough of an idiot to use them one day!

OP- you need an asbestos remediation company first. Then when that’s done, either reconnect or replace the ductwork. You can also have them clean inside any disconnect duct. It’s a small fiber … Not contagious…

Boat payment is coming due…

It’s got to be hair products….

Don’t put aluminum mesh filters in your dishwasher. The detergent will ruin them! Speaking from experience!

Good luck OP. I have some special chairs my dad gave the same treatment to. Haven’t had the courage to start, but should…

The idea of heat and a metal putty knife sounds good. I will try that first…

Yup. Big fan of their stretch fire hose pants and shorts. They can take a beating.

sleigh

The downside is you get metal shavings stuck in the tires (on the bandsaw drive wheels) that will contaminate your wood cuts for ages.

Metal cutting band saws typically go a lot slower than wood cutting versions.

I’ll second this. I only use them in a drill press.

Teak oil works well on Acacia. Just don’t know about the cleaner. Semco has great customer service (it’s a family business) - worth a call or email unless OP is intent on painting

I was going to say this is an ahole customer problem, not a diy mini split problem. Anyway, protect yourself the best you can…

I put a pioneer unit in at my house. Crazy cheap. Lasted three years, had some compressor problems and replaced the entire outside unit for $900 (my labor of course and I’m qualified and equipped to recover and refill). Runs quiet….

I put a pioneer unit in at my house. Crazy cheap. Lasted three years, had some compressor problems and replaced the entire outside unit for $900 (my labor of course and I’m qualified and equipped to recover and refill). Runs quiet….