Aube TH232 used under Travertine not working well

[Nick Diligent]

Hi

We've just had Aube TH232 electric underfloor heating fitted under a new Travertine floor in our conservatory and although the tiles are warming, they're doing so very slowly. In fact, we've manually set the temperature to 40C and its only at 21C ( on F mode) after 3 hours.

Can anyone tell me how quickly the floor should heat up and should we be worried?

Many thanks
Nick Diligent

 

[telectrix]

electric UFH is notoriously slow in warming up. what wattage is the heating.? should be around 150watts/sq.yard.

 

[needasparks]

I gues this is concrete sub, with heat sinking taking place you would be pushed to acheive any high temp.
fitting heat reflector boards does help though.

 

[Nick Diligent]

Hi.

The technical spec says the system is 230v , max load 15A or 3450 W, rated impulse 2500V - the room is about 25 square metres.

 

[needasparks]

Just had a look at their site. It is a rebadged warmup kit. where did you get the 3450w from as if its on the kit it sounds like a 150w/m2 mat but i guess you read this on the stat as its maximum loading.

They do a 100/150/200 mat types and also a scread kit thats 220watt. My money would have been on the reflector boards underneath first as if you have not it will cost fortunes to run with 25mts of it.

 

[Nick Diligent]

thanks for the reply.

I did read the 3450 from the instructions and I'll have to check with the electrician for any other info. I know they didnt lay any reflector boards though.

 

[needasparks]

Do you have radiators as well as no electric underfloor system heats a room. Hope you say yes.

 

[Nick Diligent]

we have a rad as well. Just surprised because the electric underfloor in our kitchen makes the tiles warm to the touch quite quickly. I'd understand the air not warming that well but i expected the tiles to get warmer than they are. i suppose I should have asked more questions at the time.

 

[needasparks]

would have thought with the heat loss (apx 25-45%) on solid base and no board and possibly thicker tiles may be your answer.
Bit of poor design on that fella IMO.