In article , Peter Watson
writes
In article ,
says...

Features which seem to me to be useful include:
* At least 4 programmed events per 24 hours (preferably 6)
* Time resolution (granularity) of 10 minutes or better
* 2 day types (nominally weekday/weekend) with the ability to set any day to
either type
* Temporary over-ride without re-programming
* Holiday feature enabling the heating to be off for a period and them
resume automatically after a specified number of days - preferably up to at
least 50 days

I've been very happy with my Honeywell CM67 - 7 day/6 event per day (all
days can be different), over-ride current temperature for this period or
for n hours (useful if you've staying up late), 99 day holiday mode,
optimise mode etc

Peter

Second that!....
--
Tony Sayer