EnglishSubtitle: added by anonim
CENTRAL HEATING SYSTEMS - Gravity - Fully Pumped - Combi - Y Plan - S Plan
1 00:00:02,669 --> 00:00:06,609 My name's Allen Hart today I wanted to do a video about 2 00:00:06,609 --> 00:00:14,89 central heating systems different types of systems of gravity hot water systems 3 00:00:14,89 --> 00:00:20,310 fully pumped systems and then combination systems as well I'm going to 4 00:00:20,310 --> 00:00:24,330 try out a few different types of boilers in as well so we've got combi boiler 5 00:00:24,330 --> 00:00:29,859 here this is this this company by there's actually got a flu recovery 6 00:00:29,859 --> 00:00:35,90 system on top also look at standard common Bay look at how our cylinders 7 00:00:35,90 --> 00:00:43,660 maybe look at some warm air as well so a little bit system design and a little 8 00:00:43,660 --> 00:00:48,260 bit of boilers just just a bit of a mix really so so let's let's go a lot down 9 00:00:48,260 --> 00:00:56,250 going back in time to McGee's as an apprentice really floor standing while 10 00:00:56,250 --> 00:01:03,609 standing boilers up and float a lot of the time these boilers was gravity 11 00:01:03,609 --> 00:01:08,130 gravity hot water pumped heating so what you'd normally find is you'd find a 12 00:01:08,130 --> 00:01:13,170 couple of pipes there like that the micro mount this side all outside and 13 00:01:13,170 --> 00:01:19,320 they could be namitha being 28 mil and they would go up to a cylinder upstairs 14 00:01:19,320 --> 00:01:26,9 and they would just work on grubber so house what gets hot water rises goes up 15 00:01:26,9 --> 00:01:31,470 sits cylinder and then comes back down when it's cool ticks quite a long time 16 00:01:31,470 --> 00:01:37,860 for water to get hot and it's not controlled very well either 17 00:01:37,860 --> 00:01:44,920 I'll do a little drawing about that and I'll show you I'll show you I mean what 18 00:01:44,920 --> 00:01:47,310 you a lot of time what you found with these as well as you might find that the 19 00:01:47,310 --> 00:01:53,100 pumps inside the boiler or the pump might be under the floor near the boiler 20 00:01:53,100 --> 00:01:58,890 as well and the pump before the central eating part of the 21 00:01:58,890 --> 00:02:03,170 system so we'll have a quick look now I'll do a little drawing and I'll show 22 00:02:03,170 --> 00:02:10,160 you about that and then we'll move on to looking the update version thing of when 23 00:02:10,160 --> 00:02:16,590 we went on to a fully pumped system so we are dest plans and my plan so we'll 24 00:02:16,590 --> 00:02:24,780 have a look at that then as well so what's a lock now this is a gravity hot 25 00:02:24,780 --> 00:02:30,870 water system in the most basic farm so we're at the moment here we haven't go 26 00:02:30,870 --> 00:02:38,790 in a heating connected to this how this works is the boiler fires up the hot 27 00:02:38,790 --> 00:02:42,410 water goes up the pipe there so that would be the flow into the cylinder and 28 00:02:42,410 --> 00:02:47,420 then as it cools down it would come back out and back to the boiler and that 29 00:02:47,420 --> 00:02:52,130 there's no pump on that and that just works on gravity and how light is 30 00:02:52,130 --> 00:02:59,360 controlled is the there's only the temperature control on the boiler so 31 00:02:59,360 --> 00:03:06,780 when the boiler gets up to temperature it'll shut off so the control is it's 32 00:03:06,780 --> 00:03:15,810 not great but that's your basic diagram and then this side of it that's you you 33 00:03:15,810 --> 00:03:20,910 cold water storage tank and then you have your cold work going into you 34 00:03:20,910 --> 00:03:26,0 cylinder and your hot water coming out to the towers and then for the heating 35 00:03:26,0 --> 00:03:33,600 system we would have two more pipes on here and you would have a pompom and 36 00:03:33,600 --> 00:03:38,700 then that would pump around the heating sure I'll show you I'll show you a date 37 00:03:38,700 --> 00:03:44,269 going now of this now with a with a pump on it and then we can we can see how 38 00:03:44,269 --> 00:03:52,890 that would work as well sorry about the drawing it's not it's not perfect but if 39 00:03:52,890 --> 00:03:57,260 we're imagine that is the boiler if we was gonna up the heating now on to this 40 00:03:57,260 --> 00:04:03,409 without to over pipes so this one would be the floor and that would be the 41 00:04:03,409 --> 00:04:09,959 return what you'd often find is the pump would actually be on the return back 42 00:04:09,959 --> 00:04:14,420 into the boiler and then this would go around your heating system and you'd 43 00:04:14,420 --> 00:04:21,19 have your radios on there could also be a wall pipe system as well sometimes and 44 00:04:21,19 --> 00:04:27,979 that's how that would and that would fill so to get water into this system 45 00:04:27,979 --> 00:04:34,740 normally you would have from from them pants they're going up in your hair in 46 00:04:34,740 --> 00:04:41,210 covered you'd have a pipe going off there that would be an expansion pie and 47 00:04:41,210 --> 00:04:49,240 that going to a centrally in head of tank and then you'd have off there 48 00:04:52,969 --> 00:05:02,90 you would have a cold feed and that's how you'd get water into gravity part of 49 00:05:02,90 --> 00:05:14,60 the heating system and then that would fill the heating via the boiler so if we 50 00:05:14,60 --> 00:05:21,779 had a wool pipe system connected onto this boiler we'd have a floor and it 51 00:05:21,779 --> 00:05:27,80 would go all the way around the circuit and back to the boiler and off that pipe 52 00:05:27,80 --> 00:05:34,710 these would just have teas and then would be connected underneath maybe 53 00:05:34,710 --> 00:05:42,960 under flower so it would always be one continuous circuit obviously these are 54 00:05:42,960 --> 00:05:47,639 not going to work as well because they're only going to go into the 55 00:05:47,639 --> 00:05:53,879 earlier via gravity so for instance if you want to try and power flush a one 56 00:05:53,879 --> 00:05:59,990 pipe system you'd really struggle and really it's almost impossible because 57 00:05:59,990 --> 00:06:05,289 you can't get the machine to go through the radiators so that's just a basic 58 00:06:05,289 --> 00:06:12,539 diagram of our one pipe system would work and I'll show you a two pipe system 59 00:06:12,539 --> 00:06:14,169 as well 60 00:06:16,360 --> 00:06:24,39 so again apologize for the poor quality drawing but this is the two pipe system 61 00:06:24,39 --> 00:06:32,810 just a basic three runs on this there so you've got your flow again and then it's 62 00:06:32,810 --> 00:06:35,319 two pipes so you've got flow and return there outside of each other 63 00:06:35,319 --> 00:06:39,340 and when it goes into it ready as you've got the floor 64 00:06:39,340 --> 00:06:44,689 the goes into ready air and then you've got a return that comes out ready air 65 00:06:44,689 --> 00:06:51,39 that then goes but sat boiler so if you shook all the rest of the radio is off 66 00:06:51,39 --> 00:06:56,139 and you just got one ready around then the pump will be flowing through that 67 00:06:56,139 --> 00:07:01,479 one radiator so for instance if you want it to do a power flush you could show 68 00:07:01,479 --> 00:07:08,629 your radios off connect your power flush machine in and flush that one radiator 69 00:07:08,629 --> 00:07:15,919 and then you can open the next radiator starts off lost that ready to close the 70 00:07:15,919 --> 00:07:22,300 previous really it off and and and and yeah so he bits a fluster system better 71 00:07:22,300 --> 00:07:30,680 this is obviously a much better designed because you can balance these read it as 72 00:07:30,680 --> 00:07:33,210 as well so you can balance the floor around the system 73 00:07:33,210 --> 00:07:41,599 so the the radio a closes to the to the pump pot on the floor you mere balance 74 00:07:41,599 --> 00:07:45,949 this down so it's only got a little bit of flow going through it and then the 75 00:07:45,949 --> 00:07:51,69 one furthest to where you might have that more open to allow the heat to get 76 00:07:51,69 --> 00:08:00,500 to that one so that's just a basic two pipe heating design I'm now going to 77 00:08:00,500 --> 00:08:05,960 look at heating systems that's got zone valves on and diverter valves I'm going 78 00:08:05,960 --> 00:08:10,150 to talk a little bit about diverter valves tongues and valves and how they 79 00:08:10,150 --> 00:08:18,560 would be piped in to a system as well so we've got a hot water cylinder here so 80 00:08:18,560 --> 00:08:22,889 normally that built Aaron covered we've got pom-pom on 81 00:08:22,889 --> 00:08:27,259 system here and then we've got zone valve on here as well so what I'm going 82 00:08:27,259 --> 00:08:34,529 to do I'm going to do smart drawings and I'll show you different different ways 83 00:08:34,529 --> 00:08:41,610 of piping weaves or valves and with controls and also what the different 84 00:08:41,610 --> 00:08:50,880 valves do and which way the floor goes into the valves etc yeah so let's look 85 00:08:50,880 --> 00:09:01,579 at that now so when we have a look on a zone valve often will see an hour--the 86 00:09:01,579 --> 00:09:05,970 so we know which where around the valve needs to go 87 00:09:05,970 --> 00:09:11,699 so obviously the water would be pumping this way sometimes you'll have an air 88 00:09:11,699 --> 00:09:16,70 and a B on them and normally the air would be there and the B would be there 89 00:09:16,70 --> 00:09:23,510 so again you'd be pumping towards that way 90 00:09:25,850 --> 00:09:32,500 when we look at standard freeway valve so diverter valve we have an A and B we 91 00:09:32,500 --> 00:09:40,80 have an air and then we have a B so a and B is the floor from the boiler and 92 00:09:40,80 --> 00:09:50,920 then you've got air yeah I also remember air for air and then B b4 buff so here 93 00:09:50,920 --> 00:09:58,390 for the central heating and be full of hot water cylinder so you flow up you're 94 00:09:58,390 --> 00:10:03,10 calling for hot water it'll go this way and they'll go around the hot water 95 00:10:03,10 --> 00:10:08,720 cylinder if you call in for heating they'll go that way and I'll go around 96 00:10:08,720 --> 00:10:18,130 the central heating circuit if you had an open vent heating system 97 00:10:18,130 --> 00:10:25,330 eww floor coming up from your boiler and then you'd need an expansion and you 98 00:10:25,330 --> 00:10:32,900 need a cold feed and then you W pump and then you pump that she flow and that 99 00:10:32,900 --> 00:10:38,500 would go to the vowels so if it was an S plan on a Y plan that would then go to 100 00:10:38,500 --> 00:10:48,620 to them valves so points to remember then 50 Marcus Imam and these need to be 101 00:10:48,620 --> 00:10:54,530 behind the pump and then you've got this is for the backseat by Allah so it's got 102 00:10:54,530 --> 00:10:58,30 a minimum head of Y I so you'd have to check in installation instructions for 103 00:10:58,30 --> 00:11:08,100 that and then you've got your expansion pipe normally minimum that would be 450 104 00:11:09,30 --> 00:11:16,480 so I apologize again for the poor drawing so what we've got here we've got 105 00:11:16,480 --> 00:11:23,940 his header tank for us heating this pipe here is the 106 00:11:23,940 --> 00:11:29,200 expansion pipe from the water level layer so that pipe we want a minimum of 107 00:11:29,200 --> 00:11:37,250 450 ml and then we've got us cold feed and when we go down here they need to be 108 00:11:37,250 --> 00:11:44,390 within 150 ml of each other so how I remember this is of course EP so I'll 109 00:11:44,390 --> 00:11:56,790 say P so open vent the cold feed pump and then to the control valves whichever 110 00:11:56,790 --> 00:12:01,460 type of valve we're gonna be using and then if we follow that on onto a white 111 00:12:01,460 --> 00:12:10,310 plan which I was pumped put pigs Awards a and b b b goes to a war so be for bath 112 00:12:10,310 --> 00:12:20,930 and a if rats so that's how are you would pipe so that's for your wide plan 113 00:12:20,930 --> 00:12:29,820 if we look at an s-1 system so the Esper of it still the same so we'll start from 114 00:12:29,820 --> 00:12:40,520 the pump and we've got to watch so these are zone valves now so a debate so 115 00:12:40,520 --> 00:12:46,130 that's just hot water and then that way would go to the radiators so that would 116 00:12:46,130 --> 00:12:53,730 be when you see two zombo's in like an airing cupboard that would be a next 117 00:12:53,730 --> 00:13:00,320 plan what he'd also need on this he'd also need a bypass so before the zone 118 00:13:00,320 --> 00:13:06,750 valves you'd need to pipe that then goes back to the return on the heating on the 119 00:13:06,750 --> 00:13:11,180 heating system or on the the main return because what what could happen is if if 120 00:13:11,180 --> 00:13:18,290 this valve here closed so the the rubs are now up to temperature and if the hot 121 00:13:18,290 --> 00:13:24,930 water is now up to temperature the pump would have nowhere to pump so you would 122 00:13:24,930 --> 00:13:29,980 you would need a bypass sometimes you'll see like a gate valve on these and then 123 00:13:29,980 --> 00:13:34,690 sometimes you'll see an otter by bus we were dark normally we'd want an answer 124 00:13:34,690 --> 00:13:43,990 by bus so I'd love to grab a say heating systems a little bit we've also looked 125 00:13:43,990 --> 00:13:51,360 at s plums and white bones up and then systems there's lots of different types 126 00:13:51,360 --> 00:13:56,649 of systems so you can also have seen systems if you have a sealed system you 127 00:13:56,649 --> 00:14:00,29 don't know how to tank and then you'd have a filling loop where you fill the 128 00:14:00,29 --> 00:14:08,740 system up normally they would be on like a combi style system so you can have a 129 00:14:08,740 --> 00:14:12,240 normal standard boiler on a sealing system you'd have to check the 130 00:14:12,240 --> 00:14:18,300 manufacturer's instructions but what I'll do is we'll move on to combi 131 00:14:18,300 --> 00:14:24,360 boilers and I'll show you a sealed system on a combi boiler and then that 132 00:14:24,360 --> 00:14:31,750 just gives you an idea of this so I'm just doing a few different beautiful 133 00:14:31,750 --> 00:14:37,170 things there's many many different types of of heating design and systems there 134 00:14:37,170 --> 00:14:43,990 were there were n plans and C plans and any plans and all sorts of different 135 00:14:43,990 --> 00:14:48,209 plans Academy but to be honest because I've never I've never fade any other 136 00:14:48,209 --> 00:14:55,380 types of systems so yeah so now what we'll do is well I bought a condo boiler 137 00:14:55,380 --> 00:15:04,600 and our combi boiler system would work so let's go look at one now so if we 138 00:15:04,600 --> 00:15:11,220 look at a combi a comedy boiler system then it's it's so much more simple 139 00:15:11,220 --> 00:15:17,69 because it's all built into box really so you've got white box on wall and it's 140 00:15:17,69 --> 00:15:22,750 all built inside so you've still got a diverter valve inside you've still got a 141 00:15:22,750 --> 00:15:25,790 pump instead of ahead of time cube nomicon 142 00:15:25,790 --> 00:15:29,600 expunction vessel so we can have a look at that and then when you look on 143 00:15:29,600 --> 00:15:33,100 anomaly that I would pressure gauge so it's got expansion vessel inside and 144 00:15:33,100 --> 00:15:39,770 then what we need to do we need to fill the system up so we need to manually 145 00:15:39,770 --> 00:15:48,500 fill a combi boiler of our sealed system with manual a solar system so we're 146 00:15:48,500 --> 00:15:51,40 normally our filling look below so well I will have come to Neath now I'll show 147 00:15:51,40 --> 00:15:56,260 you bottom-up boiler here and then we can see what the pipes do so we'll have 148 00:15:56,260 --> 00:16:07,970 a lot now so when we look at combi boiler what we normally have will have a 149 00:16:07,970 --> 00:16:14,780 floor pipe so if we imagine on the normal y plan system that has already 150 00:16:14,780 --> 00:16:19,550 come through you y plan and that's now going into the 151 00:16:19,550 --> 00:16:25,610 radiators this pipe here is the hot water so that if you imagine you have 152 00:16:25,610 --> 00:16:30,550 water cylinder that would be what came out of the top of the hot water cylinder 153 00:16:30,550 --> 00:16:35,440 on this one we've got the cold the cold pipe is there so that's the cold means 154 00:16:35,440 --> 00:16:41,570 so the cold means is going that we're into the boiler and then the hot is 155 00:16:41,570 --> 00:16:47,690 going that way out of the boiler and then we've got the return pipe so the 156 00:16:47,690 --> 00:16:52,300 floor is going that way and that's feeding the heating system and then then 157 00:16:52,300 --> 00:16:57,340 we've got the return and the return is going back so that's going back into the 158 00:16:57,340 --> 00:17:03,250 boiler so we've got us cold means here instead of having the header tank up in 159 00:17:03,250 --> 00:17:09,40 the loft we're going to manually fill the system instead so that's cold water 160 00:17:09,40 --> 00:17:15,10 comes in it goes around the filling loop and it goes into the heating system so 161 00:17:15,10 --> 00:17:20,900 then chill valves at the moment above turned in the off position but if we 162 00:17:20,900 --> 00:17:25,230 turn them first in the pipe work then we would be filling the heating system and 163 00:17:25,230 --> 00:17:31,60 we'd normally fill this to around 1 bar and I'll just I'll show you the I'll 164 00:17:31,60 --> 00:17:38,960 show you the age on the front of the viola now so 165 00:17:38,960 --> 00:17:44,259 this is the pressure gauge on the boiler also some boilers will have a display on 166 00:17:44,259 --> 00:17:50,350 the front which this has and that will also read the pressure for you to fill 167 00:17:50,350 --> 00:17:56,49 up so what this has instead of having a header tank up in the loft we have an 168 00:17:56,49 --> 00:18:01,210 expansion vessel that's built inside the boiler so this is a white box that 169 00:18:01,210 --> 00:18:07,879 contains all the components so it's got an expansion vessel it's got pump it's 170 00:18:07,879 --> 00:18:12,529 got a diverter valve it's got the heat exchanger and it's all in it's just in 171 00:18:12,529 --> 00:18:19,909 one box so it just makes it nice and easy to install one thing I farted sure 172 00:18:19,909 --> 00:18:26,470 you all this filling loop is this has got a non-return valve in here so the 173 00:18:26,470 --> 00:18:34,940 one the this the wall of the number turn valve goes on the cold so what we what 174 00:18:34,940 --> 00:18:38,80 we wanted to do is we don't want centrally it wants her to go back into 175 00:18:38,80 --> 00:18:43,450 the cold med so I always make sure you put these on the right way around and 176 00:18:43,450 --> 00:18:51,529 also then when you come later to top of the expansion vessel during the system 177 00:18:51,529 --> 00:18:56,220 down you can do it from this valve so it makes it so much easier 178 00:18:56,220 --> 00:19:03,529 most combi boilers work in the same way so you've got the pump people a diverter 179 00:19:03,529 --> 00:19:10,909 valve that diverts it rather to the heating system of solar hot water in a 180 00:19:10,909 --> 00:19:16,610 combi boiler on a player heat exchanger which separates it and that separates so 181 00:19:16,610 --> 00:19:20,470 it's water to water so one side water on other sides water and it's got a mouth 182 00:19:20,470 --> 00:19:28,450 flare in between that allows that mexic so the heating water doesn't mix with 183 00:19:28,450 --> 00:19:37,720 the hot water that's going to come out now this is a little bit of an exception 184 00:19:37,720 --> 00:19:44,380 to the rule so this this is God built a flu recovery so there's there's a few 185 00:19:44,380 --> 00:19:50,690 boilers on the market that have that Velen have wound Johnson and Starr they 186 00:19:50,690 --> 00:19:53,380 have one attack it's act they have they have what as 187 00:19:53,380 --> 00:19:58,519 well they can't come on as economizer yeah 188 00:19:58,519 --> 00:20:05,929 so how flu recovery works the cold water comes in and it goes 189 00:20:05,929 --> 00:20:12,940 round the flu so if you imagine when when you when you buy this on and yet 190 00:20:12,940 --> 00:20:18,580 you flue gases go up from your flu that's the warm 191 00:20:18,580 --> 00:20:26,139 so what flu here recovery system does is the cold war will go round the flu in a 192 00:20:26,139 --> 00:20:34,120 now ever they decided to do it will then go back to the boiler but it's warmer 193 00:20:34,120 --> 00:20:40,139 so one it's gonna reduce your bills because you don't have to heat the water 194 00:20:40,139 --> 00:20:48,620 requires quite as much the really good it's a good it's a good idea and it's a 195 00:20:48,620 --> 00:20:55,330 good design but the number too expensive so they're not really calm too much just 196 00:20:55,330 --> 00:21:03,769 get that they are the future and believe in all honesty but we'll sit we'll see 197 00:21:03,769 --> 00:21:08,200 see how that girls yeah I think that's it really 198 00:21:08,200 --> 00:21:13,880 and I think well do is I'll show you I'll show you a warm hair a warmer 199 00:21:13,880 --> 00:21:21,860 bottler so it's not really essentially designed but it's old old school really 200 00:21:21,860 --> 00:21:26,440 I used to do well of warm air many many years ago so I'll show you a warm air 201 00:21:26,440 --> 00:21:32,40 boiler and just you just an example really of all that words are 202 00:21:32,40 --> 00:21:39,270 an idea of how that works so let's go and look at what we're boiler now it's a 203 00:21:39,270 --> 00:21:47,940 Johnson's dour wall mer unit so there's a high spec j25 204 00:21:47,940 --> 00:21:56,70 if we look at this this is an open flow version and look and look at this 205 00:21:56,70 --> 00:22:00,260 just don't look inside at the top here 206 00:22:02,550 --> 00:22:09,880 that's like yeah he filter but we've got fun there and then that fun in there 207 00:22:09,880 --> 00:22:13,840 there's narrowed down there though if you can see that I wrong so that I don't 208 00:22:13,840 --> 00:22:17,310 know if that's blowing wow that's blowing down there so subtly blowing 209 00:22:17,310 --> 00:22:24,20 hold and that goes over the burner so I'll show you that bit now took yourself 210 00:22:24,20 --> 00:22:29,370 when we look inside we've got I've got gas valve this is for 211 00:22:29,370 --> 00:22:36,300 the warmer so this side of it is for the warmer there and then if your other side 212 00:22:36,300 --> 00:22:42,20 here that that's a is for the hot water 213 00:22:43,140 --> 00:22:49,409 it's also got the gas stove on that as well I'm actually what someone of these 214 00:22:49,409 --> 00:22:59,340 four must be 15 years or so so I do apologize if if I get mixed up at all 215 00:22:59,340 --> 00:23:07,470 with any of this but what you've got here is I believe that this is where the 216 00:23:07,470 --> 00:23:14,799 heat would come out work on the bottom and you would have still like a floor 217 00:23:14,799 --> 00:23:17,159 mat oh really and then you never return here the 218 00:23:17,159 --> 00:23:23,799 returned don't wait go back in it could be all the way around but as I said 219 00:23:23,799 --> 00:23:26,740 cameraman but I'd have to read instructions but I just wanted to just 220 00:23:26,740 --> 00:23:33,519 give you just to give you a look at really yeah so yeah so that's sure what 221 00:23:33,519 --> 00:23:39,850 she won't marry you man so that's my attempt on video about central heating 222 00:23:39,850 --> 00:23:46,340 system design I hope you found it useful thank you for watching
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