Gas warm air system thermostate

[geoffm1066]

Hi
I'm hoping the answer is straight forward so here goes, we have the dreaded johnson&starley warm air system circa 1980s and in fairness works fine. The thermostat is mounted in the front room it's the original Honeywell wired in type, we plan to redecorate and would like to change the thermostat for one that is new so is it basically a straight swap for a wired thermostat or do I need something special being an old system.
Thanks for looking and all replies much appreciated

GeoffM

 

[Dan Robinson]

Get a Honeywell DT90e.

Straight swap, although your current stat might have an anticipator, so the neutral needs making Safe.

 

[geoffm1066]

Thanks Dan for the fast reply much appreciated.

Geoff

 

[ianmcd]

just make sure that you do not have a modairflow if you do then a standard thermostat will not work

 

[geoffm1066]

OK thanks Ian I'll check with the service engineer.

 

[ianmcd]

easy to check just let us know which model of J&S warm air unit you have it will have modairflow in the title if it is one just means variable speed fan but it is controlled by the room thermostat

 

[geoffm1066]

Ok, to be sure I called the service engineer and decided it would be best if he supplied and fitted it, I think the wife would prefer that than me tinkering.