some more features:

* email/SMS alarm when pump signals fault condition (Exx)

* "silent mode" to turn all noise (blower, pump) temporarly off

* local button for blower on/off and "silent mode" on/off

* 10 schedule-able programs (target temperature or pump only)

* freeze-protection at any selectable temperature (i use 10°C)

* pump runs only while heating or if scheduled