00:00:00.949 hey guys Rob the plumber here I have 00:00:07.22000:00:07.230 quite a few people asking me about 00:00:08.50900:00:08.519 different heat exchangers so I figured 00:00:13.87900:00:13.889 I'd give a few minutes and just show you 00:00:16.58000:00:16.590 a very calm style of a heat exchanger in 00:00:18.98000:00:18.990 the heating industry anyways and 00:00:21.65000:00:21.660 refrigeration industry this is a plate 00:00:25.42900:00:25.439 exchanger now there are plates in here 00:00:31.84900:00:31.859 little copper and stainless steel plates 00:00:35.59000:00:35.600 they're layered very closely together 00:00:41.97900:00:41.989 there you get a pretty good view of it 00:00:44.00000:00:44.010 right there it has a heat transfer area 00:00:49.13000:00:49.140 of 1.3 square feet so if you actually 00:00:51.35000:00:51.360 took the plates apart and ever put it 00:00:56.15000:00:56.160 late every second one oh you would 00:00:57.86000:00:57.870 actually get 1.3 square feet 00:01:01.49000:01:01.500 pretty simple how it works that just 00:01:04.10000:01:04.110 basically tells you the total transfer 00:01:08.00000:01:08.010 area between the two liquids or the 00:01:12.85000:01:12.860 refrigerant this particular exchanger is 00:01:16.07000:01:16.080 actually rated for refrigerant so you 00:01:18.68000:01:18.690 can actually heat water off refrigerant 00:01:20.87000:01:20.880 or take heat away now the problem with 00:01:26.69000:01:26.700 this style heat exchanger is it well 00:01:28.76000:01:28.770 it's really efficient but the problem 00:01:31.25000:01:31.260 with it is is that these will reduce 00:01:36.23000:01:36.240 pressure and volume you'd say well why 00:01:43.21900:01:43.229 wouldn't you something like this well 00:01:44.95000:01:44.960 the number one enemy to these styles 00:01:48.29000:01:48.300 this style of exchanger is scale 00:01:58.31900:01:58.329 filum our scale actually acts like an 00:02:02.19000:02:02.200 insulator it'll actually insulate 00:02:04.80000:02:04.810 instead of transferring the heat from 00:02:09.29000:02:09.300 one liquid to another another problem 00:02:12.44900:02:12.459 with these if you're in the 00:02:14.61000:02:14.620 do-it-yourself is to try to make 00:02:17.55000:02:17.560 something like this it's not that easy 00:02:19.77000:02:19.780 it's actually quite difficult trust me 00:02:23.97000:02:23.980 I've tried and to seal around plates 00:02:28.58000:02:28.590 very difficult how they make these is 00:02:31.11000:02:31.120 they take each layer they're actually 00:02:35.00900:02:35.019 braised and pressed press together 00:02:37.68000:02:37.690 these may be efficient but they do have 00:02:42.56900:02:42.579 their disadvantages 00:02:50.70000:02:50.710 in-out in-out or vice versa on this 00:02:58.08000:02:58.090 particular one doesn't really matter 00:03:03.11000:03:03.120 so that's a 00:03:04.88000:03:04.890 exchanger
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