Recent content by cahilj

Under $100 all over eBay. I've done a lot of home automation and I've never seen a wired stand alone temp sensor. Plenty of sensors that will wire to a thermostat, but you also need a stat capable of accepting a remote sensor. The 824 does both.

Anything that has a direct Z wave connection would be a great choice. Venstar, AS/Trane 624, a few Honeywells, etc. A simple motion sensor connected to the Z wave hub with an event set up to adjust the stat setting is easy to do.

The American Standard (Trane) 824 thermostat can use a hardwired ethernet connection. Also- not all WiFi stats require a C (common 24vac) wire. There are multiple Honeywell models that use only battery. I'm a HVAC guy :)

It needs to be wet rated. I've never seen a metal old work 4" round box, let alone a wet rated one.

Has any one ever seen or used 4" round, flush mount (not surface) boxes for exterior lights on metal siding? Most of the light fixtures I'd like to use require a 4" round box, but the base of the light is square, designed to sit tight on regular vinyl/stucco/wood/etc siding.

I'm an HVAC guy. I've put in well over 100 mini split systems of various brands. Take that for what it's worth. This. I've done more repairs on customer installed systems than installs of new systems. Most of the time, the customer would've ended up paying much less to just have it installed...

Older HVAC systems had two separate transformers and used Rh, Rc, W, etc. The Rh is the "heating" transformer, Rc is the "cooling" transformer. The Honeywell 6580 has terminals R,C,G,W,Y,Y2,W2,Rc. You'll see a small jumper between R and Rc. That's because modern HVAC systems only (for the most...