VENTED HOT WATER CYLINDERS - Plumbing Tips

This video will give you the basic system information needed to understand a vented hot water system. How they work, what the plumbing connections are and where to buy them online
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[@plumberparts]

*Links to the tools I use everyday here:* www.amazon.co.uk/shop/plumberparts Plus, follow my *Vlog “TimesWithJames”:* kzbin.info

[@icanfly2245]

My vent pipe is leaking, if I capped it and switched the water on could this work or is it important to have a vented pipe to the water tank?

[@johnaustin1825]

I love these diagrams, much more informative than real time explanations. I think you should go the whole hog and produce a complete diagram. As above + central heating - pump, diverter etc. Great

[@focusSTben]

Learning the plumbing trade myself and these videos are GREAT!! Keep up the good work!! It's so much easier to learn than staring at a text book.

[@MatthewWHP]

The difference between an Indirect and Direct hot water system is that a Direct system does not have a coil in the cylinder, and so the water used at the hot water outlets (taps/showers etc.) is the same water that is run through the central heating system. They're not used very often and are more likely to be found on a hot water only system (no radiators attached) or on a cylinder that only uses an Immersion heater and has the flow and returns capped off.

[@Billlupton]

Good video, but here is a query an indirect cylinder 1" feeder pipes to the coil, very hot,but water coming out of cylinder is tepid, There is an automatic bleeder valve just beside the instantor elbow fitting heading into the top of the coil, same temperature at the bottom of the coil, the mystery is why the water in the 40 Gal insulated cylinder is not getting as hot as the pipes servicing the coil Thanks if you can help. Bill.

[@ersonvenusveracruz]

The book is Plumbing Intermediate from Train4trade for domestic plumbing qcf level 2 and 3.

[@spelunkerd]

I find this interesting compared to the North American design on this side of the Atlantic. Most water heaters on this side have a replaceable anode rod to try and delay rust. Is there an anode rod in your tanks?

[@johnbower]

Note: the cold water feed pipe to the hot water cylinder is the "expansion pipe", the pipe going up and over the cold water tank is the "vent pipe"

[@kodiac4231]

Hi mate bit of a long shot but thought I'd see if you could help. My immersion heater is no longer heating my water up and when I press the boost at the end of the cycle it makes the loud whining noise

[@roophayre3995]

hi. got to change my cyl. from pump to tank there is a t piece with some sort of valve?

[@gabrieldovidio5176]

I am all electric. And nolonger have a bath. Only electric shower now so dont need immersion tank. Need it removed and much smaller wall mounted tank to feed toilet hot water tap and kitchen and washing machine feed. Is this much of a job to do ?

[@robertjeffrey8734]

I have the same in my house, did you have to switch the two port or three port valve before draing down the system

[@mehere3013]

why did the yellow tank need changing ? and what us the difference between yellow and blue

[@deanmiller6223]

Love the simple drawing explaining how it works. 👍

[@fairyheli2]

what's better for an outbuilding that has sinks and a shower, a direct cylinder with an immersion or an instant gas water heater powered by a propane bottle?

[@tobyglynn]

Thanks bud, great explanation

[@Shaq756]

A plumber shut my hot water off as "the vent pipe" was leaking, I don't know what to do as the plumber did not leave a number, what can I do? Is the vent pipe important or can I put a cap above the hot water feed? I really need help as I don't have money to call a plumber out and I need hot water, is this to big for diy? Or do you have a video link? Thank you

[@RANDEEP685]

What pipe would the rads be connected to?

[@-onion-.]

indirect vented system do have feed and expansion , but you drew cwsc only,it looks like you drew direct vented system. if i am wrong could you explain it with direct vented system please

[@Joewalshe38]

Good video. Expansion pipe disappeared from your diagram after 4.50. might confuse some people. shouldn't there be a separate small water tank for indirect heating.

[@TheJohnDenim]

Urgent help required please!! I have the same system in the video above. The cylinder is in my bedroom, and the pressure from the hot tap in the bathroom is really low. I have a single impeller stuart turner pump, with built in pressure switch. I put the pump on the outlet of the cylinder but all it does is feed water back through into the tank above, via the expansion pipe. Should I put the pump on the inlet to the tank instead? Thanks anyone for the help.

[@ersonvenusveracruz]

good day to you mr. plumberparts can you also make a video explaining how indirect vented hot water system works. im confused with the book i am reading at the moment with why there are 2 cwsc? thank you and more power to you..

[@r4ptors21]

Good video mate, im from australia im a 1st year apprentice plumber/drainer (new homes) and my back is absolutely stuffed from digging so im thinking of doing heating and cooling but dont know yet, if you could give me some ideas or anything i would highly appreciate it

[@jeremywithers3879]

Nice vids james, How about the water connections on that cylinder..looks like a Telford. What is the correct way to connect to it? I was thinking adapting male 22 x 1 inch compression and adapting female 22 x 3/4 on the F&R?

[@glenr4026]

great video..very easy to understand. i am working towards gas safe qual and learning about systems etc is made a lot easier watching your videos.

[@plumberparts]

Cheers Glen!

[@mrsillywalk]

I have a few solar panels and have seen a 12 volt Heating Element i would like to use to dump heat into my copper tank. The element has a 1" BSP thread. Would there be a gland to enable a hole to be cut for a item like this? I would attempt to fit it as a Willis heater but there is a 240 volt one already installed!

[@Shaq756]

Water is coming out of the vent pipe nonstop, is this normal?

[@jamief1979]

you only need to drain the heating if its an indirect hot water cylinder which has a coil in it flowing to and from the boiler

[@markrimmer9028]

Jim, thanks for the really helpful video. I was wondering if you wanted to increase your amount of hot water for a shower - can you connect two electric hot water tanks together? Would it be in series or parallel? Many thanks.

[@patrickoliver7313]

I have just had solar panels installed. I am also on a combination boiler system. Could you tell what's involved to install a hot water tank and solar heated immersion heater?

[@carpii]

On my cylinder, theres 5 pipes going into it. Ive identified heating in, heating out, cold in, hot out. Then theres pipe going into it just above the heating in, with a stop valve on it. What would this be for?

[@benny5825]

DOES THE CYLINDER ALSO HEAT THE RADS? IF NOT WHY DO YOU HAVE TO DRAIN THE HEATING .

[@dilligaf2386]

Good video. How do you know if you need a new cylinder apart from the obvious.

[@WildxN]

Did some of this at college today! good vid!

[@MatthewWHP]

Yes, any hot water outlet. Unless the shower is electric - in which case the shower may only have a cold feed to it and will heat that cold water on its own.

[@glenn20081965]

Could you use the tank as a standard immersion tank by ignoring the coil fittings.

[@plumberparts]

+Glenn Smith Yep!

[@LoRcS123]

Hey Plumberparts, I've got a vented indirect system. I've removed the boiler and capped off the pipework to and from the coil so that there is no central heating system. The pressure coming out of the hot and cold taps is very poor at best since doing this. I am fitting a new bathroom suite and want to feed it with mains cold, how can i make sure the pressure coming out of the mixer taps will be sufficient considering the hot pressure is practically non existent? Thanks

[@normanferguson1]

hi are you sure you take the vent to cold water tank

[@johncoen1468]

Always thought the hot water expands up the cold feed.guess I'm wrong

[@Bibliotechno]

Hi Great videos. I have a query around moving my hot water cylinder 4.5 metres to the left of its current position. Is it ok to have the new vent pipes which will still run up verically to the loft lengthened to then run horizontal 4metres to the CWS tank before dipping down in as usual?...as it's difficult to move the CWS to be directly above the new hot water tank position. Ta.

[@messylaura]

changed my hot water cylinder for a new rm one and the bastard is leaking from the factory nuts on the coil connections, is it ok to use hymolar red to reseal the factory washer at these points?

[@stucutt2828]

quick question, i've fitted a stuart turner 3.00bar monsoon whole house pump but yet to fit it to a surrey flange, my hot water pipe is set away from the immersion tank and T's off for the vent up to the loft water tank. without the surrey flange the pump shoots the hot water up the vent pipe and straight into the tank in the loft, the only way around with fitting the flange is to fit an elbow to the vent pipe and run that to the top of the surrey flange. i was just wondering if this was safe to do or not? great videos by the way, helped a lot in fitting the pump. hold tight!

[@jimrhodes7881]

CAN YOU HELP,I LIVE ON A BOAT AND NEED TO FIT A CALORIFIER. I ONLY NEED IT TO GET HOT WATER HEATED BY THE MAINS SHORE POWER AS I HAVE A SECOND TANK THAT IS HEATED BY THE ENGINE AND A BACK BOILER ON THE SOLID FUEL STOVE....HOW DO I CONNECT TO THE HOT TAPS WITHOUT IT SYPHONING INTO THE EXISTING CALORIFIER,,HAVE YOU GOT A VIDEO ON THIS OR COULD YOU TELLME HOW TO PLUMB IT IN,, MANY THANKS...

[@eddieblackmore3188]

how high can you go with the feeder pipe from the top of the tank before going to the taps

[@m15zoot]

CAN YOU DO A VIDEO ON WARM AIR HEATERS

[@johnyoung2023]

How much roughly should I pay for just instalation only from gas back to solid fuel. Ps very good info

[@zakir0066]

Hi, firstly thank you so much for these videos, really helps explain things clearer. My problem is that I have a indirect immersion heater which powers the hot water. The hot water pressure is so low you can’t do nothing not even wash your face lol. I am thinking of installing a hot water pressure pump like the one you installed on one of your videos. However I am thinking of that really is the problem as I’m certain the pressure had never been this bad as I’ve had the flat for over 10 years. Do I go ahead and install the pump or is there a bigger problem? Could it also be that the immersion heater is blocked with muck and needs flushing if so can immersion heater be power flushed. Thank you

[@TheGingerSpitfire]

What is the boiler fed by on a vented hot water system, is a gravity fed system the one that requires a cold water tank and a feed and expansion - so two tanks in the loft?

[@peglor]

On systems as described in this video there is a second tank in the loft, also fed from the mains, to ensure there is always water fed to the pump at the boiler and to keep the heating loop filled and pressurised. This is why the heating system has to be drained below the level of the coil before the coil can be disconnected. Since there's a continuous supply of water from the mains to both tanks, a leak from a tap and a leak from a radiator are equally damaging as they can leak as quickly as the house water supply allows. Radiator water leaking may well be nastier as when there is no leak the same water circulates around the loop all the time, so it tends to be pretty manky compared to what's in the taps.

[@PureGamer2011]

Great video! I'm doing one of these in college now!

[@WildxN]

Why dont you just have a combi boiler on its own? why is the need of a cylinder important? please reply thanks.

[@trump1999]

Great video! A question for you, in my house there is a vented hot water system. The cold water tank is in the loft, the hot water cylinder is on the ground floor. I understand that the water in the outlet of the hot water cylinder will be at the same level as the water in the cold water tank. I'm redoing our bathroom and the current pipe work is 15mm diameter and disappears, unhelpfully, into the wall. I want to 'upgrade' to 22mm diameter piping. I don't really want to destroy half the house to remove the 15mm piping, but I can get to the pipe leading to the vent over the cold water tank on the 1st floor. Here's my question, can I add a tee here for hot water?

[@carolebrazier5775]

Nick Ear

[@jimprosser7568]

That was excellent ..Thank you. and yes the sunglasses were very cool

[@david20880036]

Brilliant!! Helped me understand exactly how it works!!! Thanks

[@spelunkerd]

Do your systems have an anode rod, to slow rust formation?

[@joepage1684]

Great, just what I needed

[@TheDickPuller]

Another good video bigchap, can you do one of an Essex Boy at the Hairdresser?? Give my regards to your wife and I love your new Bedroom carpet

[@hazel4463]

Helps a lot with my revisions

[@plumberparts]

+hazel janet gwekwerere No worries!

[@patrickdennis9950]

hi ive to change a vented hot water cylinder but there is an electric boiler beside it and looks like heating flow and return have been removed but pipes have been left in place and open-ended ? looking on the worst side of things but I've water coming out of emersion element might just be the gasket but suspect crack in tank please help cheers Pat

[@plumberparts]

Pat....we are mental busy! Cut away the foam around the immersion to get a better look. Tanks don't tend to 'crack' in the traditional sense. Most have a 'fissure' and it weeps though the copper so have a good long look before you nail the tank! Sorry for the delay in reply mate....doing loads after a long day at work! SUBSCRIBE! ➡️👉 kzbin.info 👈⬅️ IF YOU HAVEN'T ALREADY! 😎

[@jbaillie01]

Quick question. My thermostats won't go above 50. The pump will run constantly as it can't reach temp. Back to 50 or below its fine. Is this the stat or cylinder? Even something else ?? How can I check. Thanks!!

[@plumberparts]

What the boiler temp like?

[@jbaillie01]

+plumberparts the dial is 3 quarters round as it always is. The tap temp is right. It's a glowworm micron. I've been told it won't always reach the temp if I turn it up on the cylinder . But was always set to over 60.

[@LES2198]

+plur mberparts

[@keithlucey]

Quality presentation!! Thank you Sir!!

[@jackizbst]

This is really useful for revision!!

[@jaytmtb]

Great video, helps a lot :-)

[@plumberparts]

jaytmtb No worries!

[@moforockband]

Brilliant thanks

[@michaeljohnwilliams]

hey, a big thanks for your video, it's been a real help.

[@chrispulyk]

Great video, really helps me out while learning my nvq level 2. Keep it up!

[@plumberparts]

+Chris Pulyk No worries Chris, glad to help!

[@collinsachuro6997]

Good drawing demonstrations

[@williamdavies9303]

A big help. Thanks.

[@STRUTZKOFF]

How do i add water / bleed the heating circuit ?

[@PrincePlaysGames]

STRUTZKOFF F+E tank

[@acefreaky]

Interesting ....now if only you had shown how many runs of PTFE or sealant went on the female and male irons (side couplers) I could probably sleep at night ! Cylinders are my pet hate , you never know if they wont leak until its filled right to the top :(((((

[@hazapz9692]

Found this video really useful, thank you :)

[@plumberparts]

+Hazapz No worries! Sub here please>> kzbin.info

[@andywalker2077]

Why the rush?

[@mike12419]

love your videos , but i find 2 faults with this video ! no 1 the pipe you referred to as the expansion pipe in your drawing is actually a vent pipe ( the expansion pipe is the same pipe as the cold feed to the cylinder and should not have a valve on it eventhough most installations do have the cold feed valved! no 2 the hot distribution pipe should run horizontal for at least 18 inches before it vents ! this is to prevent what is called one pipe circulation ! dont mean to offend you im just making a comment!

[@plumberparts]

+Mike Rice Hi Mike, no worries! On point one I disagree! On point two, give me a airing cupboard that's big enough!!! :) Cheers dude, PP!

[@ciaranoleary7498]

If it was in the cold feed it would just keep flowing back into the Tank

[@PINEAUSFUNKYLEGS]

Incredibly helpful video. Thanks a lot! :-)

[@alushikabashi406]

very good man

[@plumberparts]

+Egzon Morina Cheers!

[@patrickdennis9950]

hi do you actually reply to questions ?

[@plumberparts]

Replied mate in your other comment. Sorry for the delay!

[@patrickdennis9950]

Cheers and thanks for the help and loving the bids !

[@plumberparts]

no worries!

[@thedavesofourlives1]

where's the "vent"

[@gpr2011gpr]

Anyone here to help?

[@cathalsurfs]

Fucking amazing video. Thanks!

[@norriskane4245]

Sss

[@jakubpociecha8819]

*Sus* 😳

[@Bibliotechno]

Hi Great videos. I have a query around moving my hot water cylinder 4.5 metres to the left of its current position. Is it ok to have the new vent pipes which will still run up verically to the loft lengthened to then run more or less horizontal 4metres in the loft over to the CWS tank before dipping down in as usual?...as it's difficult to move the CWS to be directly above the new hot water tank position. Ta.