SECONDARY RETURN HOT WATER SYSTEMS - Plumbing Tips

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This video is all about secondary hot water systems and the integral brass pump that circulates fresh water to all the outlets. We explain how they work, why they would be installed and how to install them.
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Опубликовано:

16 ноя 2011

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Комментарии : 67

@plumberparts 5 лет назад

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

@elwittinio2865 2 года назад

Your pumps on the flow.

@lewishannam5764 8 лет назад

I'm currently doing a plumbing course and it can be slightly difficuilt to grasp through a text book. Theres several times iv 'you tube' certain areas I'm not fully confident in. and several times you have helped me simplify it. So just want to say a big thank you and keep up the good work!! :D #honesttradesman

@plumberparts 8 лет назад

+Lewis Hannam cheers Lewis! Happy to help buddy!

@garydenton1704 3 года назад

You have put the pump on the draw off not the return.

@Corrie121 12 лет назад

Well presented, easily understood. Thanks for sharing.

@conorbreakwell9689 4 года назад

Great videos! Really helping with my plumbing course

@mgbroadsterJ 3 года назад

Pump should be on the return with a non return valve if one isnt intergrated .

@Joshtheguitardude 12 лет назад

Brilliant explaination! Cheers!

@David5495 12 лет назад

Great video, it's also wise to put a time-switch on the bronze pump so it only runs when necessary :)

@paulf1071 2 года назад

Yeah, no point in having hot water circulating in a loop at 3 in the morning. As James described, it might make sense in a hospital environment though.

@agoboo 6 лет назад

Man your video are great. You give me lots of knowledge. Thank you

@daytona964 4 года назад

Great Vid, Thanks! Is it acceptable to use plastic pipe for the secondary circuit or any part of the circuit?

@bobbydogra8148 4 года назад

good information mate

@creationmark 10 лет назад

How do mate, love the videos thanks, quick question. i've to fit a pressurised hot water cylinder & have been asked about installing a secondary return...I would have thought that this was unusual seeing as the water to the HWC will be pumped via an MQ 3-45 booster pump anyway. would having the booster pump to pressurize the cylinder & a brass secondary return pump on there have any adverse effects??

@KSYEDPK 11 лет назад

Hi, in diagram you showed the pump installed on flow pipe from HWSC. while in actual installation it had been installed on return side of flow pipe of hot water to hot tapes. Is this pump pushing the hot water or pulling ?

@mkhuk10 12 лет назад

Many thanks jams for this video, could you please video how many types of central heating do we have in the uk,also as we live in a council flat which is got cold storage tank water and cylender underneaf so when we fill the bath with hot water it gets cold and we have to waite for hot water to get hot for ages! What type of heating system is that?

@ilexwang715 4 года назад

hi there any video on flow and return watet supply systems and factors that needs attentions. thanks

@davyfreeman 12 лет назад

Can you do a video on how to clean a magnaclean type of thing? Mines got "sentinal" wrote on the side. Cheers

@3bdura7man 11 лет назад

bloody short vid but informative :)

@liamrobson4551 6 месяцев назад

Best way to wire a seco dary pump? I've seen timers etc before but have come across one on constant. Can you take it straight to the brown switch live from a two port or is it best to get a separate timer?

@cargunnutuk 3 года назад

question for ya if you're doing secondary return systems like this can it then be done in plastic pipe after the pump or does it still have to be copper for the entire system? also i assume you do need a check valve to allow easier flow when the tap is opened and another one to stop water being dragged backwards through the return?

@RobChamley 6 месяцев назад

Do you have a preferred pump brand and model for secondary hot water return pumps?

@RANDEEP685 8 месяцев назад

So a secondary system is basically where a pump is installed?

@baldybee 8 лет назад

Hi there, just wanted to ask what happened if you mixed the pipes by accident?

@kareng9260 7 лет назад

great!!!!

@ljubozaja6027 3 года назад

Hi, is secondary return pump needed on unvented, indirect mains pressurised system?

@masterchaz100 5 лет назад

So I recently done a full heating system install ( system boiler, indirect cylinder and 6 radiators. I have a question about the radiators so basically the guy I work with had 3 rads on the flow and return circuit and he had tee’d the other 3 radiators from downstairs into either the flow or the return I’m not quite sure what one but he said you can only tee into that pipe no more than once I just wanted to know what he tee’d the other 3 rads into as I’m only an apprentice trying to figure out the whole heating system is a bit daunting but this is the only part I didn’t understand weather he teed into both the flow and return or just one of them any help would be much appreciated?

@johncoen1468 2 года назад

Does it have to be run in copper james and why???

@jab05038980 9 лет назад

Hi Mate, love the videos, can I install booster pump and a brass/bronze secondary return pump on the hot water?

@plumberparts 9 лет назад

ahmed jabbar Hi there, I can't see why not. As long as the booster pump is sucking from the secondary return pump. PP!

@ikkec2674 6 лет назад

Cheers

@MAXAREUOS 6 лет назад

Almost what I desperately searched for! I wanted to buy and install a circulation pump at the return line of my solar heated unvented cylinder for quick hot water but the sellsman told me that it wouldn't work because of strong open system pressure and that I must use it only with pressure limiter or in a closed system with a heat exchanger. HELP!

@stewartdavies6315 6 лет назад

Great site.... really helpful, do I need to install a non return valve, and expansion vessel to a secondary return system?

@plumberparts 6 лет назад

Non return helps. Expansion vessel shouldn't be need bro! Thanks for the comment mate, I hope you subbed!

@mrjones422 6 лет назад

Your diagram is incorrect. You do not use a recirculating pump to pump hot water to your system. It is a separate line that returns from the furthest fixture/s. If you were to place it inline as part of your hot water supply line in a system larger than a single family residential system this design would not work at all. I only mention this because you brought up that they use these systems in hospitals. They do not use a system like you illustrated in hospitals. They use hot water return to maintain hot water to all fixtures in the building but the return must be from the furthest fixtures on the line and they cannot have additional fixtures between the pump and the hot water return that ties back into the tank.

@adrianoxenham362 4 года назад

Where is the brass pump wired into? and is it suitable for unvented systems?

@Gbarnes199 11 лет назад

So is the pump going all the time or just on and off?

@hpthynne 8 лет назад

Hi PP. Great video. I have a boiler and cylinder in a plant room at the bottom of my garden. There's a hot return on it because without it, it takes nearly 2 mins for the hot water to come in to the last tap. What's an acceptable temperature drop between the flow and return in a system like this? Thanks

@plumberparts 8 лет назад

+Henry I'd say max of 5 degrees. Just insulate like mad! Please sub >> ru-vid.com

@hpthynne 8 лет назад

Thanks, it's all covered in at this stage but has been insulated very well underground and pretty well throughout the house. Will measure the temp drop. I subscribed after the first video I watched! 😊

@paulandrada6674 8 лет назад

Hi, I'm kinda new to this and I have a question about this like what are the key aspects in the detailed design to ensure that the water heater works efficiently?

@plumberparts 8 лет назад

+Paul Andrada It's heat exchanger and surface area! PP!

@ljones396 8 лет назад

Quick question James - does it matter if there are taps running off the return flow? I noticed in your schematic diagram that you drew taps off the return that's all. Cheers

@plumberparts 8 лет назад

+Llyr Jones No, totally fine to draw off return. PP!

@mrjones422 6 лет назад

For a residential application there might not be much of an issue but you cannot put taps off of the return in a commercial application. I just found this video years after it was made but still want to correct the inaccuracies. The pump location in particular is the biggest issue. If the pump is upstream of the hot water system it would have to be sized for the GPM and head of the entire system that is downstream of the pump. For example a 3" hot water line that has a hot water load of 240 GPM would need a pump if installed upstream of that system to be sufficiently sized for that system. However a hot water return pump is downstream of the system and just needs to maintain hot water temperature to the end of the line. In doing this you maintain hot water in the entire line but you do not oversize the pump to handle more load than is required for the return loop.

@cippollino83 9 лет назад

hi, I am working now on 300 l gedhill unvented solar pump. I looped all the hot outlets and installed a brass pump and a check valve right before the cylinder. The issue I am not sure how can I wire the pump. I was thinking to link with cylinder thermostat. How would you do. Cheers?

@plumberparts 9 лет назад

Hi Vadim. You wire the pump to a timer. So when people are likely to use the hot water (mornings and evenings) the pump will be switched on. That's it. Easy! :)

@joesephus1 10 лет назад

i am struggling to get hot water from the tank. its gravity fed and it useless, do i need a pump like this vid...water just trickles from the hot taps

@bedsareuseful 10 лет назад

move to a bigger planet?

@ShaunDaviesAdventures 10 лет назад

Good video but I'm sure that the pump is BRONZE not BRASS :)

@peterryan7827 6 лет назад

I have to agree i was always told they were bronze bearing pumps.

@elwittinio2865 2 года назад

Bronze or stainless steel.

@gf5328 2 года назад

I’m not 100% sure if that pump should be on the flow or if it is brass. It’s a hot water “return” pump and I’ve always seen it on the return and have always called the “bronze pump”. But anyway… so why install a shower pump if you can just wack 1 of these on and solve all the pressure problems from the outlets?

@-onion-. 11 лет назад

i wish i could train with you

@suheilhanna873 2 года назад

👍👍👍

@palberry 8 лет назад

What will happens if someone is trying to use the hot water tap at the same time the water is pumped?

@plumberparts 8 лет назад

+H Nur Nothing, that's what the system is designed for.

@steifanc 12 лет назад

ah thats what its for

@mkhuk10 12 лет назад

@plumberparts its not actually attached to the hot water!

@alwaysdisputin9930 8 лет назад

0:55 I used to make penises out of clay in my art class. My teacher would tell me off and say _"That's not art."_ However, now i realise *IT WAS ART* because art can be *anything* - even a dead sheep in formaldehyde won the Turner Prize. So now I'm a plumber.

@plumberparts 8 лет назад

Mate, anything is art. Especially dead sheep!

@rosannesmall524 25 дней назад

Pump wrong pipe. pumps back. and no non return valve

@tonytony7632 8 лет назад

Heatrae Sadia 95605812 Swept Tee Secondary Return. why is this part required at £60 and can i use a wilo star z nova pump and can i use a 200litre expansion tank as a accumulator to maintain flow ? all the very best toz