hello to all you heating gurus:
we have just moved into a new house, and the furnace was working fine. for some reason, this afternoon when i went upstairs to put my son down for a nap, the thermostat said it was 74. it was hot. it was set at 62. i turned it down all the way, and i still heard the furnace kick in.
is there any simple explanation to this before i call the plumber??
any help would be appreciated. the furnace is quite old, about 25 years, oil burning baseboard heat.
jae