Mark p

We realized that they weren't heating the right rooms and cooled the whole system and pumped heat into each zone and sorted the actuators for the relevant room. The plumber used the previous markings and didnt check last year. They were wrong. That is why the current photo labels dont match. I need to relabel.

I agree the neo air thermostats are rubbish. At the moment I cant get one connected at all to the app but is working heating the room. I spoke to Heatmiser and they told me not to use the direct connection to the hub as it is causing problems. I dont know the make up of the floor. I moved into the property a year ago and it has been extended and refurbished. I have had lost of other problems and don't trust the previous own to have done things properly. I have had heat in the floors in the past and have heat in the floor in some rooms now. The floor is the same in all rooms. The furtherest rooms from the system have the least pipe loops. if the pump isnt getting the heat to them and having less loops I have a double the problem. I am thinking these rooms I need to install electric radiators and not use them. Is it worth me asking the plumber to change to two smaller manifolds with separate pumps? Or just just a more powerful pump?

There is no pump upstairs. The towel rad upstairs all feels hot. It may be worth bleeding it to see if there is any air in the system. How do I top up the water if I bleed the towel rail radiator? I dont know what the flow rate is. I have attached a picture of the system now while it is on. Would it be worth replacing the pump with a more powerful one?

Pictures of my system now, the boiler and showing the lounge through a thermal imaging camera The flow meter on port 1 appears to be stuck and I have asked the plumber to replace

Thank you for you comments. I have now changed to put on at around 19 degrees and 18.5 degrees all day and down to 16 over night to all downstairs and slightly lower upstairs see if this makes a different. Like you say it I may have been asking the boiler to heat to few zones and also on and off too much. When it is short cycling does the boiler have an hour glass sign? I have a Valliant Ecofit pure The jump in temperature is misleading on this graph. I put the fire on in the room to get it up to a reasonable temperature as on previous days it was staying at 16 ish degrees. The room then kept up to temperature

This is a picture of the manifold now. The right way up! Previously the whole thing was the other way up with the flow release valves pointing down. Ports 1, 2, 3 and 10 feed downstairs, whilst upstairs are port is 5 to 9, with 4 not being used. The upstairs ports go up the wall to room above and feed the rest of the house from there. I don't believe that there is anywhere to bleed the air out upstairs. To be honest I don't know where or how we would put some in as i have oak floor everywhere. Part of the problem upstairs is there aren't enough loops. I have though had heat in these rooms so I am guessing there is some heat in the system. Downstairs seems to be better. I think my thermostats may need calibrating as two next each other say a different temperature if I take them off the wall and put them next to each other. I think I need him to flush the system and get the air out. I don't know if it is relevant but when all rooms are on my radiator is only lukewarm but when only one system is nice and hot. It doesn't have its own actuator and will heat up when any system is on.

Looking for some help! I am having problems with my underfloor heating only getting lukewarm, even when on for 8-12hrs constantly (see pictures) . It is currently costing £25 to £30 a day and using 150 to 200kw a day to not even be warm and is driving me crazy. I am struggling to get above 16 degrees in some rooms but others i have got up to 19 degrees. I have had heat in the system before. As set out in the background below I have had a Heatmiser system installed and currently having a plumber coming back to try to solve the issue. Any suggestions? Some background I moved into a property just over a year ago. I have underfloor heating in all rooms with one radiator downstairs and one towel rail upstairs. The existing underfloor heating Manifold was upside down and thermostats didnt work very well. Before Christmas last year I had the manifold corrected and a Heatmiser system installed. The system seemed to work although I was spending quite a lot during the winter months. I found that I had less than 100mm of insulation in the loft and assumed that was where I was losing lots of heat. The rest of the property is pretty well insulated, with double glazed windows and doors, insulated cavity walls and now topped up insulation. The system (see picture - system off in picture) 10 port manifold Heatmiser UH8-RF 8 zone Heatmiser Neoair v2 wireless 8 actulators but 9 systems Grundfos pump 2 radiators All rooms underfloor Heatmiser plug boosters - ordered additional ones. Neohub Gen2 Floor is engineered oak through out I have had the boiler at varying temperatures from 60 to 75 degrees Mixing valve - set at 55 degrees Specific problems One of the flowmeters seems stuck - Ordered new one Occasional knocking and clicking sounds Heatmiser thermostats keep going off line Heating switching on during the night Heatmiser thermostats jumping between auto, hold, standby Advised by Heatmiser not to use direct I have borrowed a thermal imaging camera and can see the loops heating up although in most places there is no heat in the floor. Most rooms downstairs have plenty of loops whilst upstairs some rooms are limited. It seems that the system is getting up to a temperature but not full temperature. I would appreciate any advice to get the system to heat up to previous heating levels. Or do I need to install electric radiators??? Mark