Nickfromwales

I just whip the pipes with a few layers of insulation tape for physical separation as it's easier than gaffa tape on the bends. Gaffa tape on the long straight runs is easier if you have both available. Looks neat and tidy, stand down red alert.

Cheers. New territory here for me so all and any input appreciated. I was going to fit two large HP 's for the ND side so they could mothball that side of it if it wasn't rented for a few months of the year and also so they had redundancy for reliability / maintenance ( eg one will give some heat whilst other is being serviced / other ) plus I wanted them to idle as much as possible to keep the noise down. Need ~32kw of space heating + Dhw. Thought this would be far better split over at least two units, but if a pair of 16/18kw units would suffice, please let me know. Guys due to come back to me at the end of the first week of sept.

Most kitchen suppliers, especially the bespoke ones, charge tear-jerking amounts of money to give you what you wanted. At the absolute minimum I'd want the coloured doors replaced completely, and either the wrong units changed or the equivalent discount given. The real problem is you don't have written evidence of that request so looks like you'll only be able to push for a discount. They could simply tell you to Foxtrot Oscar regardless, change the doors and ask you to stump up, and from a legal POV they'd be entitled to do so. Down to company ethics now tbh. Mention the thread being followed online, and how you've been happy up until now. Also, how did you not notice the wall units sooner? I've just tiled a kitchen with a 600x600mm tile that's very much like the ones you've chosen. Looks great Are those 900's?

Quite simple tbh. It's not what you asked for, and some of it is damaged. The damaged bits need replacing and the incorrect wall units have to come off and be changed to the ones you asked for. Enforcing that is another thing though, so this'll be down, very simply, to asking the company directly. Until you've done that I doubt we can really advise any further. Have you approached them for a response yet?

Also any water in there, whilst exposed to the elements, will need to contain anti-freeze. That means the entire volume of primary heating water would have to be treated.

no pressure lol. If the manifold is the other side of the house then the pipe runs may be too long to do it that way. You might have to run flow and return pipe work now in anticipation of fitting a dedicated manifold for the new room. What size would the room be? Probably looking at two loops for that room as it'll have quite high heat loss during the winter / bitter parts of the year. If you had say 2x 70m loops ( pipe at 100-120mm centres ) then you'd have 15m of tail. Would that get you to the proposed main Ufh manifold? Also, if you can get to the manifold without exceeding 100m pipe loops, don't forget to run cables for the thermostat in that room as it'll need to be stand alone from the rest of the house. Point 1) yes Point 2) pointless endeavour .

I've left the information with the customer for them to ascertain the ( possible ) benefits, but I steered them off LPG for the moment. They're already going to be massively better off in a 10 year period going for ASHP's, as the building they're currently in, ( of similar size but not as well insulated etc ) has a yearly bill of nearly £5k for LPG. I was estimating that they'll use around £2k of electricity to achieve the same £5k of energy consumption, worse case. They could also install Pv but I doubt they'll go for it tbh, due to the combined capital expenditure. They started pulling faces at my quote of £21k to fit the HP's and supply and first fix all the heating and hot water system, ( less Ufh as it's existing ), which I thought was keen price to say the least . Their estimated cost for the LPG boiler install is around £13k so they only need to save £7-8k fuel costs to break even on the bigger price. Over 10-15 / 20 years the HP's make much better sense but I think they're looking at a 10 year plan, which is a bit short-sighted IMO. Ive thought about it, but there's just not enough of that type of work firing across my bow. I'll prob try and find an MCS fitter and give him a handsome rate to fit and commission and take the hit. This is my first enquiry for a job where I'm promoting the use of a heat pump, but with a huge area of Ufh, reasonable levels of air tightness and above average insulation etc I think that HP's are a no brainer for this job. The majority of used energy is going to be space heating and the Ufh company gave a delta flow of 28oC so pointless being able to massively exceed that with gas units. They've got 3-phase there so that sides comfortably sorted.

Pmsl. Sounds like a challenge lol

First thing that comes into my head is noise. Will people only be barefoot / socks / slippers upstairs? I've tiled a couple of bedrooms. No complaints tbh. Block and beam, or joists?

My 12v dewalt was SINGULARLY the hardest working cordless drill I ever owned ( for its size ). I lent mine to my stepdad about 5 years ago and he's still 'borrowing' it with it still going good guns. I've got a charger for that somewhere too if you want a spare . Anybody else want a standard makita charger? Don't bother with it now after buying the twin one . £209 or buy 2x dual for £120 ????

+1 but it's a lot easier to use them with these spacers too. Gives you a gap to get around the back of the pipe without fouling on the surface the clips are mounted to.

Howdy How did you find us?

I'd argue that it's not to do with the insulation, but to do with the temp range of the heat source maybe? Whats the quality of the build, Dave?

Inserted 'in' English heritage they should be .

Off home. Had a tit-full for one day, and it's bloody Sunday. ?. Beer and BBQ me thinks. ???

Mediation and problem solving were some of the features I had which allowed me to 'walk' into some of my jobs. The first ST job I did as an employee was interesting. My boss dropped me and the 1st year apprentice off and said "ring me when it's in and working". Didn't do any work the first 2/3's of the day as I sat down to read the manual from cover to cover, twice. Boss asked what we'd got done that day and I replied "learned how to fit ST. Tomorrow we can start the job". He went nuts as usual, but he was a major prick in fairness. S/E is a bitch when your mega OCD, but I'd find it very hard to work for anyone who didn't want things done properly, and was charging / paying accordingly. Few and far between afaik.

Fwiw, the equidistant 'stare at it longer than actually doing it' phase is something I suffer from too, just I've learned to get a solution quickly and move on in order to actually make some money. One of the reasons I'm not rich ??

Aye, there's not enough flow / velocity to keep water from air locking in the pipe run. Those small waterways through modern monoblock taps don't bode well for mixed / gravity supplies.

Im currently spec'ing an old school conversion ( single storey existing building to 5 holiday rental units plus one domestic residence, same building ) and am facing the heating / water 'split' dilemma. Need the domestic side and non-domestic side split into separate systems so the RHI payments can be applied accordingly ( if they choose to go that route ). I need ( equal to or lesser than ) 32Kw total of space heating plus 2 separate DHW systems. Thinking of pairing 2 x 15kw HP's for the 5 rentals, ( redundancy for maintenance or one unit failing etc ), feeding into one large buffer tank via a 'common rail' arrangement ( so an unified body of water ) and the two ( rental units ) Ufh manifolds fed off the buffer, with a 180tr UVC with a hot return circuit so instant hot water at all basins. A third 12kw unit then for the domestic dwelling doing Ufh ( via it's own manifold and buffer ) and a 210ltr UVC, ( bath, stand alone shower, basin and loo in the domestic bathroom ). The dilemma is whether or not to ask the ASHP's to ramp up to 55oC for DHW production, or to just leave the immersions provide dhw start to finish. These will never go cold so the upper range will only need to be maintained ( eg top up against use or losses ). I've allowed for buffers at the moment so that the each of the Ufh manifolds has a heat battery so that the space heating will continue to be serviced whilst the ASHP's drop out to do DHW, should that be the way to go. The cons seems to be just components and complexity of pipework and controls etc ( if doing the split heating and DHW design ), with the pros being DHW will be produced quicker. Each of the renters will have a tank-fed electric shower, no bath, and just a basin for hand wash, plus one communal cloakroom WC so very little DHW required for these units. Anyone have any thoughts on the potential revenue that would be generated by the RHI, vs doing a cheaper non-MCS install. 20 years of lower rate plus 7 years domestic is on the table. Going non-MCS will probably save over £5k. Waiting for a positive response from the customer before I progress to the maths stage, but thought I'd float it here first, for some extra reading material if nowt else .

Increased and unnecessary complexity with the split units IMHO. Monoblock seems a much better choice to me.

Your getting good at this now . DONT use Denzo tape!! It's not allowed for use on potable water any more Where the two pipes are touching, just use insulation / gaffa tape to physically separate them, and there won't be any issues with them then IMO. If you don't want a joint, drop a separate pipe for the bath hot and tee it in above where you have access to the joint maybe? Also did you say the upstairs basin cold is off the CWS? I'd want that off fresh cold myself, but you may have to change the tap to acheive it ( if it's a mixer / mono block ) as the hot won't have much gravity ( pressure ) at that location to fight off cold mains. Apart from those niggles it's going good guns, and one less tiled access panel to do .

That's the hammer . Stick with me, kid

No, it'll be boxed in in the attic with a removable panel which is easier, quicker and imho more desirable than trying to make a tiled access panel in the bathroom wall.

No reason to have isolation in the bathroom then

You want to buy my ( spare ) charger? I just bought this bad boy