WEBVTT 00:00:01.800 --> 00:00:08.720 It's awesome. So cool. We can tell 00:00:05.839 --> 00:00:12.480 exactly where they go. One of the coolest things about my new house is the 00:00:10.480 --> 00:00:18.160 heating system. It takes hot water from this boiler and pumps it through the 00:00:15.120 --> 00:00:20.320 floors using this bank of valves to 00:00:18.160 --> 00:00:24.640 decide which rooms are going to get heating at any given time. And compared 00:00:22.640 --> 00:00:29.119 to a traditional forced air system, a hydronulic one like this is more 00:00:26.400 --> 00:00:33.040 efficient and it's completely silent. But the cooling is another matter 00:00:30.599 --> 00:00:39.120 altogether. This puppy right here, who I nicknamed Bryant, is groy as heck, 25 00:00:36.239 --> 00:00:43.680 years old, and uses only a single temperature probe on the inside of the 00:00:41.040 --> 00:00:47.600 house to determine whether he turns on or not. That means whoever's hanging out 00:00:45.680 --> 00:00:51.280 in this north facing bedroom right next to the thermostat is having a pretty 00:00:49.600 --> 00:00:55.920 good time. Well, the people sitting in the living room are going to need the 00:00:53.520 --> 00:01:01.359 fire to warm up. Meanwhile, down in the land center with all these computers, 00:00:59.440 --> 00:01:05.199 Now, I could solve these problems by paying someone to come and install an 00:01:03.120 --> 00:01:10.400 expensive multiszone air conditioning system, but this is line tech tips. So, 00:01:08.240 --> 00:01:16.080 instead, I'm going to be using a Raspberry Pi and a handful of these 00:01:13.680 --> 00:01:21.680 super cool electronically controlled dampers that you can get online for like 00:01:19.119 --> 00:01:28.960 150 bucks. That's right, fraction of the cost and it's going to be way better. 00:01:25.280 --> 00:01:28.960 Probably not. 00:01:34.600 --> 00:01:41.920 Before we can determine where to install our cheap AC zone controls, we need to 00:01:39.920 --> 00:01:46.960 know where the in flooror heating zones are. Because the last thing in the world 00:01:43.920 --> 00:01:48.640 we want is for the AC to be fighting 00:01:46.960 --> 00:01:52.560 against the heat with both of them running at the same time because the 00:01:50.399 --> 00:01:56.880 freaking zones don't line up. So, we're starting here in the master bathroom 00:01:54.320 --> 00:02:01.200 where the plan is actually to eliminate one of the in flooror heating zones. You 00:01:59.040 --> 00:02:06.000 can see we've actually got easy access to show you guys how these in flooror 00:02:03.680 --> 00:02:10.399 radiant heating tubes are coiled around the room so that your toes are nice and 00:02:08.080 --> 00:02:14.560 toasty. It's actually apparently pretty common to have a separate in flooror 00:02:12.560 --> 00:02:18.160 heating zone for the master bathroom because it's pretty typical for the 00:02:16.160 --> 00:02:21.520 flooring type to be different in the bathroom compared to in the bedroom. But 00:02:20.239 --> 00:02:26.560 Ivon and I are going to be putting the same type of flooring in these rooms. So, there's a couple of good reasons to 00:02:24.160 --> 00:02:31.280 consolidate. Number one is that the thermostat for the bathroom sits right 00:02:28.560 --> 00:02:35.280 here next to the duct for the AC. So, it would be easy for that thermostat over 00:02:33.680 --> 00:02:40.080 on the other wall to be calling for cool, while this one is getting blasted 00:02:37.599 --> 00:02:44.800 with cold air calling for heat. Number two is that implementing these AC zones 00:02:42.480 --> 00:02:47.920 is inherently more expensive and complicated than implementing these 00:02:46.480 --> 00:02:53.280 heating zones now that the tubes are already on the floor. So, we're saving 00:02:49.680 --> 00:02:54.720 ourselves some complicatedness there. 00:02:53.280 --> 00:02:58.560 Fortunately, the builders did a great job of labeling everything so I know 00:02:56.319 --> 00:03:02.239 exactly where all of these cooling loops run. That means we can focus our 00:03:00.400 --> 00:03:08.080 attention on how to turn that basic single zone AC into a multiszone one. 00:03:04.720 --> 00:03:10.159 And for that, we will be using this or 00:03:08.080 --> 00:03:15.120 something like it. This is a Honeywell Truezone damper. And what it does is 00:03:12.879 --> 00:03:21.599 it's basically just a piece of ducting that allows air to flow or Da da da does 00:03:19.680 --> 00:03:27.519 not depending on whether the room is calling for cool or not. To do that, it 00:03:24.239 --> 00:03:29.599 uses this 24volt AC actuator, which is 00:03:27.519 --> 00:03:34.000 designed to be used with Honeywell's own system, but we found that it works just 00:03:32.080 --> 00:03:37.680 fine with anything you want. I love how the readout is just mechanical. So, 00:03:36.480 --> 00:03:42.040 that's how we're going to do the main floor and the upstairs. But for the 00:03:39.760 --> 00:03:46.720 basement, we've got both more possibilities and some more challenges. 00:03:44.879 --> 00:03:51.040 The original owners didn't finish the entire basement. So, they only put two 00:03:48.480 --> 00:03:55.200 zones down here. One for the bathroom and the wreck room, which is where we're 00:03:52.799 --> 00:04:01.040 standing. These were the finished parts. And the wall actually ended right here. 00:03:57.760 --> 00:04:02.040 And a second zone for everything else. 00:04:01.040 --> 00:04:07.200 But I'm going to show you something cool. Okay, let's go quick before it 00:04:04.200 --> 00:04:10.159 fires. Right here on the floor. Oh, 00:04:07.200 --> 00:04:15.280 there it goes. Just kicked in. Uh right here on the floor, we've got six loops 00:04:12.720 --> 00:04:21.359 for that other zone. And there are actually labels on these, but they are 00:04:17.919 --> 00:04:23.759 completely illeible and mean nothing to 00:04:21.359 --> 00:04:28.160 me. So, what we're going to do is we're going to whip out the thermal camera and 00:04:26.080 --> 00:04:31.680 we're going to do a trace with the hot water that's circulating through the 00:04:29.840 --> 00:04:36.080 floor to figure out whether we can segment out, say, the LAN room and the 00:04:34.479 --> 00:04:40.320 theater room, for example, which are rooms that could have very different 00:04:38.080 --> 00:04:44.160 cooling requirements. Yeah, it's going to take a while to heat up that water. 00:04:41.759 --> 00:04:47.520 We might want to get some lunch. You guys might have noticed a wild Jake 00:04:46.000 --> 00:04:52.759 appearing in the background of the video today. He's here to show us how this is 00:04:50.400 --> 00:04:58.160 going to work. hit me. I told you. Oh, I I I just showed 00:04:56.080 --> 00:05:01.520 up. I didn't know I had to do stuff. So, once we actually get to the final 00:04:59.360 --> 00:05:05.199 install when Lionus has his server rack going and his home server, we'll just 00:05:03.360 --> 00:05:09.680 run Home Assistant in a Docker container on his Unrated server. But for now, 00:05:07.440 --> 00:05:13.600 Raspi is our standin. But Home Assistant doesn't work by magic. So, first things 00:05:11.440 --> 00:05:19.360 first, we need to figure out how to close the damper. And the answer is this 00:05:16.960 --> 00:05:22.560 24volt power supply. Wow. Wasn't that convenient. For our demonstration, I 00:05:21.120 --> 00:05:25.520 will be the lovely assistant plugging the AC power supply into the wall. Oh, 00:05:24.320 --> 00:05:31.199 did you already plug it in? Yeah, it's plugged in. Oh, we're live wires here. You want to see some sparks? No, no, no, 00:05:28.080 --> 00:05:32.880 no, no, no. Not necessary. Sparks. 00:05:31.199 --> 00:05:36.320 Okay. There's like kind of gas. Can you unplug that, actually? Yes. Now, when I 00:05:35.120 --> 00:05:39.759 went in and actually picked this thing up, we were going in totally blind. I 00:05:38.240 --> 00:05:44.479 actually had no idea if this was just going to work. This could have been some weird proprietary crap that Honeywell 00:05:42.720 --> 00:05:49.520 requires you to like wire up in a certain way with a special power supply, 00:05:46.240 --> 00:05:53.240 but fortunately it's just 24volt AC. So, 00:05:49.520 --> 00:05:55.919 we plug it in and we plug it 00:05:53.240 --> 00:05:58.800 in. And you plug it in. Time for the big test. Put your hand in there. I'm not 00:05:57.280 --> 00:06:02.360 putting my hand in there. Okay. You ready? I'm ready. Oh, it's moving, isn't 00:06:00.639 --> 00:06:07.199 it? Oh, yeah. Nice. I think the closing time on this 00:06:04.639 --> 00:06:10.639 thing is 30 seconds. Okay. But that makes sense. You don't want to have like 00:06:08.720 --> 00:06:14.000 a sudden shock to the system. It like flips closed and there's all this back 00:06:12.319 --> 00:06:18.800 pressure. Yeah. Just like when you shut your hose really fast. You might hear a th which is called water hammer. So I 00:06:17.280 --> 00:06:24.479 guess this would be like air hammer. Air hammer. Of course. Um we have to be able 00:06:21.840 --> 00:06:29.039 to I can't just stand here and go like this to control the AC in my house. 00:06:26.720 --> 00:06:32.400 Surely we can do better than that. Well, I mean we could we could hire a few 00:06:30.360 --> 00:06:35.600 Linuses. And that's where this guy comes in. Now what we're going to use in the 00:06:34.160 --> 00:06:39.199 final install is not necessarily going to look like this. It's going to have a lot more channels, but this is what we 00:06:37.919 --> 00:06:44.000 had laying around, and it's going to be perfect for our demo here. This is what's known as a smart relay board. 00:06:42.479 --> 00:06:48.560 Basically, each one of these is kind of like a light switch. Rather than having 00:06:45.759 --> 00:06:52.800 a human or a Linus in this instance actuate it, it has a Wi-Fi connection 00:06:50.639 --> 00:06:55.919 that can actually actuate it instead, just like clicking these buttons would. 00:06:54.400 --> 00:06:59.520 And the nice part is we can integrate this directly into Home Assistant. So, 00:06:57.840 --> 00:07:03.759 Home Assistant can go, I want to open that damper. Click that button. Power 00:07:01.520 --> 00:07:08.680 goes through, opens that damper. It's been about 20 minutes. It's time. 00:07:07.160 --> 00:07:15.599 It's awesome. This is freaking awesome. So 00:07:11.440 --> 00:07:18.560 cool. We can tell exactly where they go. 00:07:15.599 --> 00:07:23.360 Oh my god. This is amazing. It's almost like it was made for this purpose. I 00:07:20.560 --> 00:07:28.000 love it. So, there it is. We've got four lines into the theater room. Two of them 00:07:25.840 --> 00:07:32.639 carrying hot water in, two of them carrying cool water out. So, you can see 00:07:30.000 --> 00:07:38.000 there's this clear line dividing the theater room lines from 00:07:35.440 --> 00:07:45.360 Go. Oh, here we go. It goes out here. So, this room has four as well, 00:07:41.400 --> 00:07:48.000 then. One, two, three, four. Oh, shoot. 00:07:45.360 --> 00:07:53.120 I got prematurely. I think my hopes are dashed. Yeah, it's I think it's four 00:07:50.599 --> 00:07:57.199 lines. I don't know what's going on. I think they really did just kind of yolo 00:07:55.039 --> 00:08:02.479 it. The bad news is that the zones overlap a fair bit. Yeah. The good news 00:08:00.080 --> 00:08:06.560 is that it seems like for the theater room at least, there's one coil that 00:08:04.479 --> 00:08:11.759 does most of the heating. So, if you look here, this boy comes in and 00:08:10.000 --> 00:08:16.800 actually crosses over one of the other tubes at the end there. You see that? 00:08:13.759 --> 00:08:18.960 So, it comes in, it comes down here and 00:08:16.800 --> 00:08:25.199 is actually predominantly for this room that we're standing in. 00:08:21.560 --> 00:08:28.319 Meanwhile, this uh other one here, this 00:08:25.199 --> 00:08:31.199 guy right here, goes all the way along 00:08:28.319 --> 00:08:36.320 the whole floor. So, it's only that one edge of the room that would get any 00:08:33.200 --> 00:08:38.080 heating from this room's zone. So, we 00:08:36.320 --> 00:08:42.959 could probably get away with it. Yeah, cuz it wouldn't heat that room very 00:08:39.760 --> 00:08:44.480 much. And the main coil negligible 00:08:42.959 --> 00:08:48.959 enough. And plus, it would shut off once this room is heated. So, Exactly. I 00:08:46.480 --> 00:08:51.440 think it's okay. Yeah. So now you just have to give this to the plumbing guys 00:08:50.000 --> 00:08:56.240 and see if they can figure it out. Yeah. Yeah. Nice. Good luck plumbing guys. Did 00:08:54.720 --> 00:09:01.440 we show the wiring for this? No, we didn't. Okay. So, very simple. Same 00:08:58.560 --> 00:09:06.160 24volt power supply or well transformer really cuz it's AC to AC. And then we're 00:09:04.080 --> 00:09:10.720 going into the actuator here. The only difference is that we've got our little 00:09:08.320 --> 00:09:14.640 Wi-Fi relay in line. You guys might actually remember this thing from when I 00:09:12.320 --> 00:09:19.120 smartified my garage door. So, super straightforward. Uh Jake through Home 00:09:16.240 --> 00:09:24.560 Assistant. Press the button. Beautiful. You can see it activates here. The 00:09:21.200 --> 00:09:26.240 damper opens. Freaking awesome. Except 00:09:24.560 --> 00:09:30.480 these things honestly aren't that great. I ended up bricking mine because it 00:09:28.160 --> 00:09:34.800 turns out there is no hardware way to factory reset it. You have to tell it 00:09:32.480 --> 00:09:37.600 through software to factory reset, which is the stupidest thing ever because if 00:09:36.320 --> 00:09:40.720 you change your Wi-Fi, blah blah blah. The point is it's bricked. These things 00:09:39.519 --> 00:09:44.480 suck. So, we're going to be using a bigger one that runs Tasota firmware, 00:09:42.640 --> 00:09:48.560 which is way better. So, the reason we have this set up to close by default 00:09:47.120 --> 00:09:54.800 when this is off, it's just so when we're like programming it in Home Assistant, it makes a little more sense 00:09:51.600 --> 00:09:58.399 for that relay to be on when it is doing 00:09:54.800 --> 00:10:01.200 air and off when it is closed. So, it's 00:09:58.399 --> 00:10:06.000 off, it's closing. Mhm. It's just like a brain logic thing. Yeah. Because 00:10:03.360 --> 00:10:11.040 regardless, when this is closed, it uses power. So, whatever. Uh, of course, it's 00:10:08.880 --> 00:10:14.240 still a human pressing buttons. We're getting to that now. Well, the most 00:10:12.560 --> 00:10:19.760 obvious substitute for a human finger would be a thermostat, but we've got a 00:10:17.360 --> 00:10:24.320 couple of problems. First and foremost, having 10 thermostats control the same 00:10:21.720 --> 00:10:29.120 AC doesn't really work. And on top of that, how is that going to control a 00:10:26.240 --> 00:10:33.920 damper? I mean, look at it. This is some ancient technology. It's It's kind of 00:10:31.519 --> 00:10:38.640 beautiful. There's only two wires going to this thing which go to a 24volt power 00:10:36.640 --> 00:10:43.760 supply back in the mechanical room that controls the valve for that particular 00:10:40.800 --> 00:10:49.839 heating zone. So what that means is basically this physical ass freaking 00:10:46.519 --> 00:10:53.920 mercury either tips and completes the 00:10:49.839 --> 00:10:55.920 24vt circuit opening the valve or it 00:10:53.920 --> 00:11:01.040 doesn't touch the metal contact and the valve closes. That's it. Most smart 00:10:59.240 --> 00:11:05.600 thermostats, actually a lot of them don't even work on three wire, let alone 00:11:03.120 --> 00:11:09.760 on two wire. Screwdriver is not for sale in the store yet. So, uh, buy a shirt, 00:11:09.880 --> 00:11:13.360 ltstore.com. Oh, that's 00:11:13.399 --> 00:11:19.680 awesome. Thankfully, you guys were full of lots of good ideas in the comments on 00:11:17.519 --> 00:11:22.640 my last video about the new house. There were some really awful ideas as well, 00:11:21.279 --> 00:11:26.800 terrible ones, but there were some good ones. One way we could tackle this is 00:11:25.200 --> 00:11:30.959 running more conductors, but unfortunately that would require ripping 00:11:28.640 --> 00:11:36.079 up not just walls, but in some cases even flooring of the house in order to 00:11:33.440 --> 00:11:41.680 do that. That is not happening. There's 10 of these. Yeah. But there were some 00:11:38.800 --> 00:11:45.920 other ideas as well. One was to just run temperature sensors in the rooms and 00:11:43.920 --> 00:11:50.640 then have everything controlled via Home Assistant. The problem with that idea 00:11:48.160 --> 00:11:54.160 was that the wife and the kids want a bit more of a userfriendly way of 00:11:52.480 --> 00:11:58.399 interfacing with the heat and cooling controls in each room. One suggestion we 00:11:56.399 --> 00:12:03.360 got a bunch of times was to use a thermostat from someone like Techar that 00:12:01.120 --> 00:12:08.800 just uses these for power and then communicates wirelessly back to what is 00:12:06.320 --> 00:12:15.440 kind of the the real thermostat back in the mechanical room that has multiple 00:12:10.959 --> 00:12:16.720 wires for heating, fan, and AC. The 00:12:15.440 --> 00:12:20.639 problem with that is then I'm buying into someone's like stupid proprietary 00:12:19.279 --> 00:12:24.160 thing and I'm adding a bunch more complexity that honestly isn't 00:12:22.399 --> 00:12:27.920 necessary. Thank you for the suggestion though. That was not one of the stupid 00:12:25.760 --> 00:12:30.880 suggestions. And the solution? Well, turns out it's a smart thermostat. 00:12:29.440 --> 00:12:35.200 Anyways, what we actually ended up with is an EcoB3 light. And this was almost 00:12:33.120 --> 00:12:39.120 totally by accident. We have these installed at the office. And I was just 00:12:37.120 --> 00:12:42.079 kind of checking it for reference. Turns out these guys are HomeKit enabled, 00:12:40.959 --> 00:12:46.800 which means we can have direct connection to them. No cloud necessary, which was one of your prerexs. That was 00:12:45.200 --> 00:12:51.040 a big thing for me. I don't want to wait for a relay. And if some stupid cloud 00:12:48.959 --> 00:12:55.440 service is down, I don't want to not be able to control or have no AC at all. 00:12:53.760 --> 00:12:59.920 Right. So, you plug this guy in. It's basically just got the two wires for power, which right now is hooked up to 00:12:58.079 --> 00:13:04.360 this guy, but in the future will be directly wired through this existing 00:13:01.440 --> 00:13:09.519 wiring. Plug it in. Turns right on. Now, the really nice 00:13:07.440 --> 00:13:13.760 thing about these Eco Bees is notice we only have two wires connected. But in 00:13:11.519 --> 00:13:17.519 here, it thinks it has six. We can just lie to it. You can literally go in and 00:13:16.079 --> 00:13:22.160 tell it that wire is connected, that wire is connected, that one's connected, that one's connected. So, this thing 00:13:20.079 --> 00:13:25.519 thinks it's directly connected to an AC, directly connected to a fan, and 00:13:23.680 --> 00:13:30.639 directly connected to a boiler, but it's not at all. This way, we get the full 00:13:27.920 --> 00:13:35.120 brain sort of smart sensing, smart runup, smart rundown of this thermostat, 00:13:33.440 --> 00:13:40.160 and then we just take what it wants to do. Like, say it's too hot in here, I 00:13:38.079 --> 00:13:43.360 want to cool off. It's going to turn into cooling mode and then we can read 00:13:41.920 --> 00:13:47.680 that in Home Assistant. Home Assistant's like, "Whoa, this thing's in cooling 00:13:44.959 --> 00:13:51.440 mode now. Let me turn on the AC and open that valve." Before we can do the big 00:13:49.519 --> 00:13:56.000 demo, we need to do a couple of things. Starting with hooking up, well, some of 00:13:53.760 --> 00:14:00.320 the multiple aspects of the heating and cooling system. So, you can see we've 00:13:57.680 --> 00:14:04.120 got our AC zone one. That's our damper. We've got our heat zone one. So, that's 00:14:02.480 --> 00:14:09.600 going to hook up to the valve on the boiler. We've got our 00:14:07.680 --> 00:14:12.959 AC power. That's going to tell it to turn on the compressor. And then, of 00:14:11.360 --> 00:14:16.959 course, we've got our fan power, which is going to tell the air conditioner to 00:14:14.639 --> 00:14:21.360 blow cool air around the house. So, right now, for the purposes of our demo, 00:14:18.639 --> 00:14:25.440 we've just got AC and fan. Then, in Home Assistant, Jake has been setting up 00:14:22.880 --> 00:14:30.399 automations, which are effectively scripts that allow all of these elements 00:14:28.560 --> 00:14:35.600 to interact with each other. Because the last thing you want is to kick on your 00:14:32.800 --> 00:14:38.959 fan and your compressor, but then have your damper closed because then you're 00:14:37.600 --> 00:14:46.000 going to create a bunch of back pressure potentially blowing up your air conditioner. So, what we've done is 00:14:42.880 --> 00:14:48.720 we've made sure that as long as one AC 00:14:46.000 --> 00:14:54.240 zone is calling for an open damper, the AC power and the fan will go on. And if 00:14:51.920 --> 00:14:58.800 all of these are closed, these will turn off. So, this is it then. Exactly how we 00:14:56.959 --> 00:15:03.440 want this to work with the thermostat on the wall. Someone could set a 00:15:00.240 --> 00:15:05.279 temperature hold and then okay at 11:30 00:15:03.440 --> 00:15:10.839 when the normal rules take over, normal scheduling, everything's just totally 00:15:06.880 --> 00:15:14.920 transparent to the user. We end it 00:15:10.839 --> 00:15:20.079 and our AC should kick on. Look at 00:15:14.920 --> 00:15:22.639 that. The fan goes, the damper opens cuz 00:15:20.079 --> 00:15:27.199 remember on is off for the damper, right? So it's open and we're blowing. 00:15:25.680 --> 00:15:31.120 And then if I say, "Okay, look. I really don't need that much cooling cuz I'm a I'm a hot 00:15:31.480 --> 00:15:38.160 boy. Look at that. It's freaking 00:15:35.079 --> 00:15:40.240 awesome. Look at it go." The application 00:15:38.160 --> 00:15:45.600 for stuff like this is really exciting and basically endless. With just simple 00:15:43.600 --> 00:15:48.880 sensors that could be wallpowered or even battery powered, you could do 00:15:47.040 --> 00:15:52.480 almost anything. You could sit down in your computer chair and have a 00:15:50.639 --> 00:15:57.360 batterypowered pressure sensor that turns on a freaking desk fan. Uh, the 00:15:55.120 --> 00:16:01.680 way that I plan to use this is really to amp up the efficiency in this place. So, 00:15:59.920 --> 00:16:07.120 every wall light switch is going to have a motion sensor in it, which means that 00:16:03.920 --> 00:16:09.519 I'm going to have occupancy awareness. 00:16:07.120 --> 00:16:14.000 So, the AC will never turn on in a room that hasn't had anyone in it for the 00:16:11.120 --> 00:16:18.160 last, let's say, 30 or 60 minutes or something like that. It'll pretty much 00:16:16.160 --> 00:16:22.639 pay for itself. It'll just take a few years. It's really exciting. 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