How to Replace a Steam Radiator



up here we have four bedrooms okay and one of them we're using as an office right now but we're gonna be moving my son in because we're expecting another baby appreciate it but before we move them in here this is the room that is not comfortable it's a little cold here in the other time well I tell you it was I hope around the house and all the other bedrooms here all the other rate is stand that standard height of about 38 inches there's three columns and this one is definitely not that it looks like somebody in the past probably took out the original radiator spun it over it spun the valve over and put a smaller one here probably so they could put a bureau right here but what we got to do is find you the right size radiator in order to get this thing to heat right so actually one of the radiators I took out of the kitchen downstairs I still have it and I think it would works the regular good yeah I think it would work well here let's look into that because it's really important and they have the right sized radiator in every room now you've got a steam system that means that there's a boiler down on the basement half filled with water think of it like a giant lobster pot when the system is off the pipes and the raiders are all filled with air when the thermostat calls for heat a flame and the boiler ignites it begins to boil the water as it gets hotter the water turns to steam and rapidly expands to 1,700 times its original size and fills the pipes to each radiator an air valve on each radiator allows the air in the system to vent until the steam is sensed at which point the valve closes and the radiator fills with steam and as it loses its temperature it turns back to water the water drips back down the same pipe to return to the boiler and be reheated now what's really important with a steam system like this is to have balance the right sized radiator in every room it's a single zone system thermos single thermos that comes on all the heat comes up into the radiators note in your case this one's too small which means it's going to give off less heat to the room but it's also gonna cool off faster than the other ones and you're going to have this condition so I think what we're gonna do is to break this connection remove this old radiator spin the hand valve I put in your new old radiator right here now people see radiator and think that it's fill with water it isn't it's a steam system so right now it's filled with air and I could break this connection it's a mild day and not have any risk of steam coming out but just to be safe let's start by turning around the service week alright before I break this connection I just want to talk about steam raters in general at the least case we would like the radio to be installed in a way that it is level so any water that was inside the radiator when switched from steam tube water would drip back this way so in an old houses the floors often settle so you can see what's happened here they've got some shims right here to try and pitch that ready a little bit and there's no shim here so all that's holding this rating in place really is this nut right here now to break this nut this is the hand valve and this has a large Union knot right here we're going to try to break it and when we do this part called the spud what remains on the radiator and this part it breaks away now anytime I work on old work old piping like this the steam it's expanded and contracted a bunch of times I want to be careful how I use the wrench if I put this wrench onto the nut like this and only bit here and here what could happen is as I tighten or loosen I could take this nut and take it out of round and turn it into an oval and that would wreck it so what I always do is do what's called a three corner bite you'll notice that we touch here we touch here but as importantly we touch on the backside right here and that effort will keep it turning around let's see how we do good okay so now the union is broken let's just wiggle this out here so let's be careful of the floors any water just a little bit right so careful lift it with me let's put it right onto the pad okay good so let's get this one out of here and go find your new old radiant all right all right get skinny coming through the door there good this is so great you actually save this thing yeah it's all part of the plan okay yeah I don't think so not careful of the floor yep good all right so now we have to spin this hand the valve this way and if I'm going to spin it I might as well replace it and give you a new one okay and if we replace the hand valve will also do the spud on the new radio so we're gonna do a couple of wrenches here pipe with us okay let's try a little persuasion all right so here's our old hand valve it has a rising stem and at the bottom it has a gasket but that thing is all worn originally it would have been leather I'm not sure what that is but it would never hold back steam so you can see the difference or the new one again it's a rising stem but this has a brand new high-temperature rubber gasket so when you close this off at least it'll hold back steam that's only half of it though the other half is this thing called the spud that has the union connection now there's not enough room to get a wrench on here so you'll notice there's two little tabs on the inside they make a special wrench called a spud wrench designed to go in this way we'll catch those two tabs it will allow us to loosen the old one or tighten in the new one the good news is this existing nut actually matches up so I don't have to change the spud and they don't always come out easy so we're gonna go for just reusing that with a new hand valve very cool all right now we got to put our new work together with some old piping anytime I do that I use pipe dope and a thing called single strand wicking I want this stuff to not leak so early on I'll use adjustable pliers and then use two words just to Snug it up not quite I think that's it right that's right all right new hand valves in place but when we bring the radiator in people see this nut and I think that's the water tight connection it isn't the nut only brings this spud so tight against the hand valve that this is the watertight seal so what I like to do is to apply a little bit of pipe dope right on the face all right one more thing the muscle my friend all right so what's coming all right let's snug it up with the big black thank you okay that should do it open the valve turn on the system and give it a test all right all right thermostat is on you should be feeling some heat heats coming up yeah that's good you know it looks like what that looks like it's always been there well I can't thank you enough was my pleasure you were great help oh thank you good luck with the baby – thank you sir

22 Comments

  • Justin Figgins

    April 14, 2019

    Richard turned red trying to break the connection, 5:17.

    Reply
  • Mike Leach

    April 14, 2019

    Always crescent wrenches on brass. Or else you get those nice teeth marks you made on em with your channel locks and pipe wrench. ??‍♂️

    Reply
  • Evgeny Ananyev

    April 14, 2019

    Water to steam expansion ratio is actually 1600/1

    Reply
  • quinten jansen

    April 14, 2019

    Maybe you amaricans can use stone as a building mitierial for houses. Instead of wood.

    Reply
  • Gabriel Aldana

    April 14, 2019

    5:15 ???

    Reply
  • Mike Greene

    April 14, 2019

    i cant thank him enough either!! The both of you!! thanks

    Reply
  • Dziadek

    April 14, 2019

    Snug it up with the big black one

    Reply
  • Eddie Loius

    April 14, 2019

    I didn't know Rush Limbaugh did plumbing work..

    Reply
  • rupe53

    April 14, 2019

    Interesting that the owner saved an old radiator when remodeling the kitchen but some of us want to know what they are now using in the kitchen… and perhaps where that small radiator came from or why they downsized in the first place? That smaller unit seems fit for a bathroom so maybe they swapped something years ago? Also, in a house that age the old radiators would leave a mark on the floor from the cast iron feet. With a close inspection they might have gotten a clue as to the width of the original. (likely centered between the windows) Overall, this seems like an easy fix for their problem and close enough for a room that will usually have the door open.

    Reply
  • 张汝迅

    April 14, 2019

    一根管道能热吗

    Reply
  • ericlogos

    April 14, 2019

    Be sure to wrench your nuts properly.

    Reply
  • Ron Forgette

    April 14, 2019

    No pipe dope necessary on the face of the brass union. ..

    Reply
  • Evan Young

    April 14, 2019

    Dope on a union huh?

    Reply
  • Vytautas Poška

    April 14, 2019

    Lets snug it up with a big black thank you ?

    Reply
  • J H

    April 14, 2019

    Lol guy doesn’t want to discuss his upcoming baby. Wait till the kid sees this one day. Hope he likes the old folks home!

    Reply
  • Brian Maier

    April 14, 2019

    I didn't know steam was still used. I thought they had all switched to hot water instead.

    Reply
  • Ravindra Singh

    April 14, 2019

    Sir please make a video in my language

    Reply
  • Scott Campbell

    April 14, 2019

    I’m a British guy and our first house in the US had steam heat. It was incredible.

    Reply
  • Samsung/Android Is the best /Fortnite sucks

    April 14, 2019

    You need a new home

    Reply
  • Evan D

    April 14, 2019

    Thanks you for all your video You are the best school..!!!

    Reply
  • Jim A

    April 14, 2019

    I suspect they are putting radiators back to original locations. A kitchen does not need much of a radiator.

    Reply
  • yhnbgt365

    April 14, 2019

    Pip[e wrench on a hex nut? Shame on you. You should have shown an adjustable smooth-jaw wrench, as in an old monkey wrench or a more modern "Crescent" wrench.

    Reply

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