On Thursday, January 15, 2015 at 10:42:59 AM UTC-6, bob_villa wrote:
Tell him to join (for free) at this website: http://www.contractortalk.com/forum.php They've helped me a few times with HVAC questions.

The short cycling can't be good for an oil-fired boiler! Can you just try an old Honeywell mercury bulb stat...just for ****s and giggles?