Nickfromwales

Very. Noisy pile of crap that I witnessed. If that was put in my house it would put out just as quickly. ?

Has a catchy tune so can’t be wrong ??

https://les.mitsubishielectric.co.uk/latest-news/ultra-quiet-ecodan-takes-heat-pumps-to-the-next-level

ASHP manufacturers have sat up and listened to this, and now you can get ‘super silent’ ASHP’s to suit. The Daikin split I worked alongside a while back was horrible, and a bit like a washing machine on spin, ?, no ta. Noisy, and vibrations a plenty. A well designed, well thought out installation will not be noisy, and you can direct the sound from the fan at a living barrier to absorb any residual noise from it too. You can make big mistakes about where to site this, from an acoustic nuisance PoV, so for eg avoid siting it at the end of a path between a wall and a building or you’re creating a natural ‘horn’ which will amplify the sound a lot. Put some thought in and you’ll be able to remove any nuisances

https://www.insulationsouthwales.com

Welcome aboard!

If 'she' reads this, it'll be you getting kicked around the floor lol.

Croeso I Gymru, cariad.

Why didn't you understand better the first time FFS

That's the ceiling mounted one. Wall / low level mounted Flick through the pics on that listing to see the spare outlets on the underside

OK. So.......... If you need wireless access points ( AP's ) dotted here and there for a better WiFi signal throughout the house than you'll get from the bag of shit router you get from BT / Virgin etc, ( BT being the worst ), you will then have these satellite AP's which are connected to your LAN ( Local Area Network ), from the aforementioned router, via the Cat 6 cables you ( ? ) hard wired in the house at the same time you rewired. There are AP's which go onto walls or ceilings ( like you see down the pub ) or wall mounted ones that go at the same height as the plug sockets. eg less ugly to look at. You can get these to do the one job, provide WiFi and nowt else, or you can choose one which has an outlet on it that you could then 'steal' a LAN connection from eg you could have one Cat6 cable going to an office, plug in the AP which will work fine alone, but then you could plug a network printer or desktop into the throughput outlet to get a second cheeky connection ( without disturbing the signal going to the AP ). So basically you can 'piggy back' two devices off one cable run if it terminates in a convenient location of course ( by design ).

Get comfy and read this

I can write it again after 5 pints of Stella, may make sense then?

+1.

For ongoing reference you would call a door, with the handle to the left, "right hand hinged", and vice versa Same regardless if it opens in or out.

Stand up, close your eyes, and see which hand you reach out with to open the door. End of.

Do you mean which side would it be hinged? Throw us a bone chief !?!

Just a point to add, that if you use an Ubiquity AP you can get ones which have a hidden data plus a hidden data + POE on the underside for throughput. The data element basically gets you the connectivity for the AP plus another LAN device, so you can kill two birds with one stone ( cable ). POE sum at the AP + downstream connected device must not exceed the POE value given by the POE switch though, so do the sums if you wish to cut down on wiring and follow this solution. AP's are available with bottom exit outlets ( hidden ) or face mounted ( if frequently used for LAN connectivity eg guest bedroom for occasional laptop etc ).

Another supplier is Easy Roof for a mounting system for the larger panels.

Yup. Open 100% or shut 100%.

No. They're serving two separate bodies of water with dissimilar hydraulic resistances. The manifold pump see's high and low resistance as a constant operating environment due to loops opening / closing in varying numbers at varying times. The ASHP circulation pump must see a constant in order to satisfy the mandatory ( factory fitted / supplied in most instances ) flow switch, which tells the heat pump that all is well and it can fire up safe in the knowledge that the flow rate is sufficient to convey the produced heat away effectively.

I've spotted why TRV = Thermostatic Radiator Valve ( big white knob with graduated numbers on it ) typically found on the end of a domestic radiator TMV / TBV = Thermostatic Mixing / Blending Valve ( the valve that mixes flow and return ( hot and cool water )) together to reduce the delivered water temp

Welcome, and nice avatar lol.

The FMU3 is ample tbh. The combination control group is a bit OTT imo, but it is a relatively neat solution too. Ultimately you can do all this 'conventionally' and spend a bit less, depending on how you want to control the rads eg rads linear to heat requirement via TRV's on the rads, or ON / OFF via room stats and manifold actuators. In bedrooms I think I'd still prefer TRV's in each room, so maybe consider 'smart' TRV's from a control package supplier that does the whole family of products as a finished system solution. The biggest focus here should be on room stats with at most a 0.5oC hysteresis so you then don't actually need W-Comp. I've fitted Vailllants W-Comp and it was a huge ball-ache with many return visits to try and get it to work nicely. Ended up removing it IIRC and just going back to the boiler stat vs TRV's which worked perfectly well ( client simply turned the boiler temp up slightly in the bitter part of the winter and vice / versa ). I 'recently' fitted the Honeywell EVO system and am quite impressed with the range of products and the simplistic stat-per-zone for temps plus a central hub for the 'thinking' side of things. Pretty much plug and play so a nice easy handover If you're feeding everything from a buffer ( have you already spec'd and bought this, and what is heating this and to what stored temp ? ) then you'll need one tapping for rads and another for UFH, ideally with a 2-port zone valve on each leg. Pointless in having the extremely expensive M3V in this instance, as the secondary manifold will deffo need its own pump ( as you're going to be hydraulically separated from the pump of the heat source because of the buffer ). The images shown in the Emmetti literature expect a 6m pump to be on the primary side of the UFH manifold to force water around those loops, and you'll be missing that unless you buy and install it. Personally I'd try and do away with the second primary pump and just use pumps on manifolds to feed both rads and UFH as these should pull heated water from the buffer without any further help ( as long as they are on separate tappings or Tee'd off away from each other immediately at the buffer ( eg with a 28mm x 22mm x 22mm tee ). Also, Vaillant stated that they did not have a W-Comp solution for 2x heating circuits + DHW eg triple S-Plan but that was a few years back.

No. It’s a safety thing full stop. Forget modulation, it’s to prevent the max heat delivery ever getting into the slab. Not any old TRV, as these have capillary wires coming off them which go to a reference sensor probe ( look at the pics for the curly silver wire ) so must be made fit for purpose. Regular TRV’s reference room temp to actuate, these take reference from the probe. No. The manifold pump is there for circulation of the water through the loops. The ASHP pump is there to circulate heat back and forth the manifold > ASHP only and should never be relied upon for UFH flow. Yup. Not quite 100% but the majority of it. No. The flow to the manifold from the ASHP will be arrested by a 2-port zone valve fitted before the manifold in the flow pipe. With that shut you can run the manifold pump to do as per Jeremy did and Bobs your uncle and Fannys your aunt. ? Water will always follow the path of least resistance, so the pump will just happily recirculate through the pump / blending set arrangement. The answer is, you need a manifold pump and blending set ( TMV ) full stop. Convincing yourself that the risk is minimal is academic as you can still get that small HP over 50oC, regardless of how long it takes to get there. Scenario could be that just one loop is open and flowing vs the load of the entire heated area, so compound failures are what drives these initiatives, guidelines and regulations. Now shoot off and buy your TMV ?!!