[jyl]

Thanks, everyone!

The 10/4 MC cable sure would be easier than conduit. The 50' run from subpanel to location has to snake around HVAC ducting in one spot. Looks like it will cost 2X as much as 4 x 10 ga THHN in sched 80 PVC conduit, though :-(

I'm not going to run 3/4" water line to the machine - that's just the size of copper line I'll be tapping in the basement. The machine doesn't need that much flow, it's merely pulling 2 oz shots! I've also read not to enclose Sharkbites in walls; here all the water line will be exposed in the basement. Ok, Sharkbites + PEX, this sounds like something I can DIY.

On the pressure regulation: I'm not clear why espresso machines, and some other appliances like my dishwasher, specify 25 psi supply. Seems the machine should tolerate standard house pressure (60-80 psi), since the internal pump is operating near 200 psi anyway. I've been running the machine in my garage from the garden hose w/o pressure regulator, seems fine. But I'll follow the manufacturer's instructions.

The Sillite receptables look like what the doctor ordered, for the 120v receptacle. In fact, the wife has long wanted an outlet in the window buffet (to the right of the photo above) and this might be the ticket there too. Thanks!

I'm not too worried about critters entering the exterior drain line. The line will exit the bottom of the bumpout where the built-in lives, then it is a 3' drop to the ground. I will use some sort of screen to cover the exit. Freezing - hmm, hadn't thought of that. The drain line will be inside the house, except for the exit, and will be draining 180F water.