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I have just been looking at mine again, with water temp of 16/17deg there is a tiny bit of moisture on the manifold downstairs - temp 25.4 and humidity 47% ( around 10% higher than normal) gives a dew point of 13.3 deg so not concerned downstairs upstairs is around 28 degs and 57% humidity so has a decent amount of condensation on the manifold as dew point 18.3 deg. Upstairs is mainly carpets except tiled bathroom but tbh the ufh is pretty ineffective upstairs so not concerned however I have just turned the manifold valves off. Unfortunately I have no way of isolating the flow and return pipes to u/s manifold but pipes are lagged in the ceiling Does anyone see any issues here? I am new to using ufh/ASHP for cooling but it certainly makes a difference downstairs and a lot more humid than usual

I had exactly the same about 6 months ago. Quick online chat and diagnostic and a new gen 3 through the door about 2 days later

Not the same materials, however we had a cast iron seat on our porcelain tiles, when I moved it there were little rust marks where it had been stood. Nothing shifted those rust marks, tried everything… …and then I used a Brillo Pad, and that did it. May work for you?

Interesting topic - Heat Geek have just released a video on the subject and there was one thing that got my attention bearing in mind I am all rads (no UFH) and they are almost all converted to TBOE from a flow perspective - I will one day convert to heat pump but when the boiler dies or Gas v Electricity cost perspective drives the change. Anyway here it is

I reckon it’s identical and as you say the distance from the ground that the photo is taken makes it look different. Not much though, smart set up.

Ffs. 🤦‍♂️😂

And I still wanted more but performance number 1!. Really good lod on tree. Shadow types depending on distance from camera. Near trees leafs have shadows also. Tree sways in wind etc. I did find a glb for this and had to do some work to get it sane. Will probably compromise my snow accumulator now but for awesome looking tress I'll take the hit.

Here too. We're only a mile from the Solent, so external humidity is generally higher.

Possibly, but it's a case of six or two threes. Temp at 8pm yesterday when it would normally switch to night mode was still 30c, and was 27c when I went to bed at 11.30pm. I decided there was no point pulling in air that was going to need cooling.

Generally yes, but only if humidity is lower outside than in. Where I am, humidity is still high, and is forecast to rise through the night into the high 80s. Thankfully it should drop a fair bit through tomorrow.

One of my current projects today

As @Russell griffiths above. Gaulhofer 4.5 meter window -open 10mm for the last few days and locked in place, right next to the dog's cage. Why 10mm? So the bloody cats can't drop blood-soaked presents off for the dog, just outside her cage . little sods.

Aren't you better to run the MVHR at the normal speed. Then the MVHR actively pulls the humidity out the house, moving dew point upwards.

Ditto Jack, we've never had this before, but we've also had the MVHR running slower than normal (speed 1 rather than lifting to speed 3 overnight).

I lowered the flow temp on our underfloor cooling from 16 deg to 14 deg a few days ago, in anticipation of the several day heat wave. The surface of the door (polished concrete) slowly fell to a minimum of 18.7 deg a couple of days ago. It's slowly drifted up to 18.9 deg since. In the middle of the afternoon today, I noticed some darker spots on the surface of the concrete. Within three hours of noticing that, entire sections of the floor in the kitchen were slightly damp. We've never seen so much as a whiff of moisture in 7 or 8 years of using underfloor cooling. It's amazing what a two degree flow temperature difference coupled with high humidity (~80 inside at the moment!) can do. I've turned the flow temp back up and will monitor.

The handle on our lift n slide from norrsken lifts the door up from the lower track, you can slide it open any amount you want 50mm- 1200mm or whatever, then turn the handle and drop the door back down, that’s it, it’s not moving not 1mm unless you pulled it with a truck.

Perfect solution - glad I could help

This was at 13.35 today. We have hard (Karndean) flooring throughout. Had a few areas where the surface has got a little damp this afternoon, but I can live with that.

Here's ours being installed. @Russdl's look way smarter and low profile, perhaps because of the distance from the ground. You can see the clamps being installed, they have a disk that sits 15mm above the seam. We've had no issue with birds trying to go underneath. I wish I could have fitted three rows of panels on that South facing elevation 😕

Wet as in slopping around the barrow. Left it about two years I think before tiling just to make sure!

I have found that if there is an existing driveway and dwelling, unless your proposal makes the arrangement worse, highways, planning and the fire service don't get too busy with it.

Yeah, maybe "watering it" was the wrong terminology

and then I want more.

Absoluely awesome tbf! Adil.Sharif@vent-axia.com say Pocster sent you (mention my massive cock - he'll know who you mean) - actually don't mention that.....

How are comms with them best done? Is there an email ? My unit is just outside 5yr warranty (going by the purchase date but not if you count the actual switch-on comissioning date which was months later) but it'd be worth a punt.