Central Heating System

[geoff]

In message , IMM writes

And they never fail ?

[IMM]

All things mechanical can fail. It would also fail if an earthquake ruptured all the district too and a typhoon followed up ripped all the roofs off.

[geoff]

In message , IMM writes

So you didn't really mean "A frost stat is a fail safe mechanism" then

[IMM]

For 99.99999999% of the time ir is.

[geoff]

In message , IMM writes

So it's not - and stop calling me iris

[IMM]

It is.

OK Maxie.