Russell griffiths Posted July 27, 2018 Share Posted July 27, 2018 Opinions please trac pipe under a block n beam floor. In a duct or concrete covered to protect it whilst building works continue or trac pipe pipe under solid concrete garage floor ducted or not. Cheers russ. Link to comment Share on other sites More sharing options...
PeterW Posted July 27, 2018 Share Posted July 27, 2018 Why TracPipe..? Can you not get the entry point closer to the appliance ..? Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 27, 2018 Author Share Posted July 27, 2018 36 minutes ago, PeterW said: Why TracPipe..? Can you not get the entry point closer to the appliance ..? Not really, unless I want 2 cylinders sitting in the kitchen. Trac pipe? What else can I use supply will be from 47kg propane cylinders mounted outside the garage, pipe needs to run under solid garage floor and then under block n beam house floor will measure distances later out side will join to 2 cylinders via a change over valve inside will feed a 5 ring gas hob only. What are the other options as Trac pipe is dear as poison. Link to comment Share on other sites More sharing options...
Alexphd1 Posted July 27, 2018 Share Posted July 27, 2018 https://www.ebay.co.uk/itm/Tracpipe-Coil-22mm-15m-Flexible-Gas-Pipe/223073915916?hash=item33f03dd40c:g:VasAAOSwhilbVxT~ 1 Link to comment Share on other sites More sharing options...
Alexphd1 Posted July 27, 2018 Share Posted July 27, 2018 can you not come up and over garage ceiling? Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 27, 2018 Author Share Posted July 27, 2018 (edited) 3 hours ago, Alexphd1 said: can you not come up and over garage ceiling? I could but why would I ? could I run it in copper over head ? can it be left exposed? I have looked at the straightest route and that is straight under the floor and up behind the cooker. Edited July 27, 2018 by Russell griffiths Link to comment Share on other sites More sharing options...
joe90 Posted July 27, 2018 Share Posted July 27, 2018 For my Gas run I used https://www.ebay.co.uk/itm/MDPE-YELLOW-POLY-PE-GAS-PIPE/152509406123?hash=item238244dbab%3Am%3Am6MLmW6c6EMW8nfnEvnjNWw&var=451866159573&_sacat=0&_nkw=yellw+gas+pipe&_from=R40&rt=nc&_trksid=m570.l1313. It had to be buried out side the building, surrounded in sand and “Gas” tape above it, brought up outside the building (kitchen) and converted to copper before entering the building. Had it commissioned recently and curr3ntly cooking my tea with it ?. Link to comment Share on other sites More sharing options...
AliG Posted July 27, 2018 Share Posted July 27, 2018 We did the same, considering the cost of Trac pipe and the fact that it still causes concern inside the house we dug a trench around the outside of the house and laid gas pipe in that for a fire at the other end of the house from the boiler. Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 27, 2018 Author Share Posted July 27, 2018 I’m only interested in the bit inside the house no town gas here so gas cylinders for the cooker Link to comment Share on other sites More sharing options...
Triassic Posted July 27, 2018 Share Posted July 27, 2018 (edited) I’d be using proper plastic gas pipe, not some rubber hose that could degrade and leak! maybe this will help https://copperplumbing.org.uk/sites/default/files/content_attachments/domestic-gas-installation-testing_0.pdf Edited July 27, 2018 by Triassic Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 27, 2018 Author Share Posted July 27, 2018 2 hours ago, Alexphd1 said: https://www.ebay.co.uk/itm/Tracpipe-Coil-22mm-15m-Flexible-Gas-Pipe/223073915916?hash=item33f03dd40c:g:VasAAOSwhilbVxT~ I had seen that earlier, but thanks for finding it. ? Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 28, 2018 Author Share Posted July 28, 2018 Does this make a bit more sense. @Nickfromwales @PeterW Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 28, 2018 Share Posted July 28, 2018 (edited) That should be fine, and done in copper too. If all of those sub floor voids are ventilated then that won't be a problem. They just frown on you having a leak and charging a small cavity, whereas they're not so bothered about the larger ones. Duct from the bottles until the 'hollow void' with the duct sealed the dwelling side, and the other end of the duct visible and exposed to atmosphere. If a leak occurs it'll transport the gas to outside where it can be detected. Remember you only need 15mm, 22mm is way overkill. Edited July 28, 2018 by Nickfromwales Bold text altered ? 1 Link to comment Share on other sites More sharing options...
ProDave Posted July 29, 2018 Share Posted July 29, 2018 10mm plastic coated copper coil? Well it's what I have used. Only 2 joints, one at the hob and one at the regulator. In my case the bit from the hob (kitchen island) to outside is a hockey stick then straight plastic duct buried in the concrete to where it exits the wall. Someone will now tell me how wrong and dangerous this is. Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 30, 2018 Author Share Posted July 30, 2018 After having a good look on the tracpipe website, it states that for all LPG installations any pipe entering a building must be above floor level can you shed any light on this @Nickfromwales is LPG heavier than natural gas or something so they don’t want it in a floor void. If this is the case it looks like I will have to run it surface mounted across the garage like @Alexphd1 suggested. Bloody hell life shouldn’t be this hard. Link to comment Share on other sites More sharing options...
ProDave Posted July 30, 2018 Share Posted July 30, 2018 Is this because LPG is heavier than air so will pool in a sump? I guess (hope) my buried pipe is okay as it is sleeved and exits above ground level outside. Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 30, 2018 Share Posted July 30, 2018 Heavier, yes. TBH running it through the garage isn't a bad option. Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 30, 2018 Share Posted July 30, 2018 2 minutes ago, ProDave said: Is this because LPG is heavier than air so will pool in a sump? I guess (hope) my buried pipe is okay as it is sleeved and exits above ground level outside. Does it run downhill to outside, and is the duct end open to atmosphere? Link to comment Share on other sites More sharing options...
ProDave Posted July 30, 2018 Share Posted July 30, 2018 1 minute ago, Nickfromwales said: Does it run downhill to outside, and is the duct end open to atmosphere? yes and yes (for now) though where it exits will get filled in with rocks as a French drain later on. It's a continuous run of pipe off a coil, no joints in the duct. Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 30, 2018 Share Posted July 30, 2018 3 minutes ago, ProDave said: yes and yes (for now) though where it exits will get filled in with rocks as a French drain later on. It's a continuous run of pipe off a coil, no joints in the duct. As long as trapped gas can get to atmosphere where it will naturally dissipate then you'll be fine. If that duct end will allow gas to fall to the void below the house then it could be an oops moment. Link to comment Share on other sites More sharing options...
ProDave Posted July 30, 2018 Share Posted July 30, 2018 21 minutes ago, Nickfromwales said: As long as trapped gas can get to atmosphere where it will naturally dissipate then you'll be fine. If that duct end will allow gas to fall to the void below the house then it could be an oops moment. The duct is buried under the concrete sub floor so below the void so I can't see that happening. Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 30, 2018 Share Posted July 30, 2018 Just now, ProDave said: The duct is buried under the concrete sub floor so below the void so I can't see that happening. As long as the integrity of the duct is good then shouldn't be a concern. Link to comment Share on other sites More sharing options...
Alexphd1 Posted July 30, 2018 Share Posted July 30, 2018 If you are running surface mounted you can do it in copper, fittings for that Trac pipe are pretty expensive. Link to comment Share on other sites More sharing options...
Oz07 Posted July 30, 2018 Share Posted July 30, 2018 On 27/07/2018 at 18:18, joe90 said: For my Gas run I used https://www.ebay.co.uk/itm/MDPE-YELLOW-POLY-PE-GAS-PIPE/152509406123?hash=item238244dbab%3Am%3Am6MLmW6c6EMW8nfnEvnjNWw&var=451866159573&_sacat=0&_nkw=yellw+gas+pipe&_from=R40&rt=nc&_trksid=m570.l1313. It had to be buried out side the building, surrounded in sand and “Gas” tape above it, brought up outside the building (kitchen) and converted to copper before entering the building. Had it commissioned recently and curr3ntly cooking my tea with it ?. Was any old gas engineer happy about connecting to this? Where did you get the connections. My bloke didn't sound keen when I floated the idea once. Link to comment Share on other sites More sharing options...
joe90 Posted July 30, 2018 Share Posted July 30, 2018 10 minutes ago, Oz07 said: Was any old gas engineer happy about connecting to this? Where did you get the connections. My bloke didn't sound keen when I floated the idea once. I got a quote from a big Gas firm who did not suggest it was not right (the quote was huge and late) and it was commisioned by a local Gas engineer who also did not question it and had the fittings on board his van! Link to comment Share on other sites More sharing options...
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