UFH - whole mat is not heating up.

[ianmorrison9]

the tiles have been done for no more than 3 months, we are in Liverpool, think the tilers used plenty of adhesive!!!

 

[Gazzer]

I would think that you wouldnt lift the tiles without breaking them.

Only asked because I went to school with an Ian Morrison....its not you...lol

 

[andy8758]

Hi,

thanks so far for the replies, thought i'd best respond and provide some more information.

The hotspot is nowhere near the probe. The wall thermostat can be set to measure from probe only, probe and air temp, air temp only, or not take account of temps at all. If the thermostat takes account of room temp - then the hotspot may be affecting that reading. In any event the hotspot is always going to be "hot" whereas a properly functioning ufn system will make the tile feel mildly warm to the touch - not hot.

the room (kitchen/diner) has 2 mats, the larger mat in the dining area is on backer boards and heats up evenly, the smaller mat in the kitchen area is only on a 1mm mat (new product from tiling shop) as the levels were different so couldn't fit backer board, the excess wire from this mat runs around part of the perimeter infront of the patio doors (will this be cooling this area down) and into the corner were the hotspot is.

surely people order larger size mats than they need and install them with extra wires in one area. how likely is it to overheat, it is probably covering an area of no more than 0.5sqm. (if that) - no never buy too much, always buy less than floor area - you really cannot place wires closer than manufacturers recommendations - generally that is at least 50mm from walls, obstructions and other cable. Your retailer should always recommend buying less.



how easy are tiles to take up and whats the likelyhood of taking them up without breaking them?!

any responses and advice would be greatly appreciated.


Ian

Ian, I am sorry but you really seem to have misinstalled this heating system. The flow of electricity generally generates heat. Electrical installations are governed by BS7671:2008 commonly called the 17th Wiring Regulations - one of the regs is that you must install the appliance/accessory/installation according to the manufacturers instructions. The regs also include common issues affecting the safety of electrical installations - one of which is to reduce the risk of fire caused by incorrect instalklation of electrical installations. If you have a fire in your home now - your insurance company may refuse to cover you because of this. From what you are telling us the installation is not doing what it should - so the safest thing to do is rip it out and install it correctly.