Sanity check regarding electric underfloor heating.

[GBDamo]

Been asked to look at an electric UF heating system.

As yet it is laid but no connected and no supply is present.

There are two mats at 1600w so total 3200w, 14A.

My intention is to run a feed off a 20A RCBO via a 20 DP isolator to the thermostat.

Run in 2.5 T&E, clipped direct total <10m

However the MI state to run direct off a 32A breaker (No iso) which would mean 4mm cable which will not terminate in the thermostat.

Any thoughts.

 

[ferg]

I would suggest the manufacturer is talking nonsense.

 

[DPG]

Does the manufacturer actually state that no isolating switch should be used?

 

[GBDamo]

Ignore this thread for now, I'm getting hold of the instructions myself as previously was taking someone on sites intrpeitation of them, which appears to be a little wanting.

Cheers.