underfloor heating probs

Your help please… We have wet underfloor heating in our kitchen and it hasn’t worked since moving in a year ago. I have now decided to try and fix it as the floor is painfully cold. The Grundfoss pump appears to be running and the actuator pin moves freely. However on removing the thermostat...

I have 6 circuits of underfloor heating on one manifold. The first 4 circuits are through a concrete slab the last 2 are under a suspended floor. The first 4 are great, they warm up very quickly, the last 2 do not heat up much at all. In trying to diagnose the problem I have turned off the...

Help please. I've had wet underfloor in my new extension put in by a builder and plumber who (unbelievable) don't know anything about it and have asked me what to do. Don't worry they won't be getting near it again. I have two zones (1 pipe for one zone and 2 pipes for the other zone) that have...

Hi wondering if anyone can help we have 11 zones of under floor heating which are linked to 3 separate thermostats. the plumber is different to whoever laid the underfloor so he can’t figure out which actuator / wire links to which thermostat so at the moment each thermostat heats up the...

Hi All. WE have got underfloor heating on the entire groundfloor of the house, it was done to building regulations spec that is the insulation which if i remember is 100mm celotex, and a screed of 70mm + tiling. The problem now is that it cost a fortune in gas to heat the space, there are 4...

Hi, I need bit of help with understanding a fault with my underfloor heating system. I have a Vaillant EcoTechPlus 637 system boiler. Hot water from the boiler is divided 3 ways using Honeywell 2 Port valves - Hot water to a cylinder, Radiators Upstairs and under flor heating on the ground...

Hi, I've just moved into a flat with Devimat heating and am confused about the settings / display. 1. Should the mat switch off as soon as it reaches the end of the "on" time? This morning, I noticed that the Devireg 550 controller in one of the rooms was showing the heating-up symbol about 40...

I want install underfloor heating (UFH) and, apparently, because of the wooden floor boards we can’t use an electric UFH system, so we have to use a water system. But I don’t have a gas boiler to make hot water. There are electric boilers which apparently- according to google- will be ok for...

Hi All I was hoping to get some advice regarding my underfloor heating. Setup is as follows: 6 circuits connected using 1 6 port manifold Grundfos UPS 25-60 130 pump Polypipe mixing valve All controlled as a single zone, no actuators, wire thermostat Worcester boiler (with a pump inside it)...