Setting the ODR curve

CapeCod

I had some work done to my boiler piping and heating system last year (changed piping from direct to primary /secondary, changed from zoned heating controlled by thermostat to constant circulation with TRV's on panel rads) and also spray foamed the kitchen as part of a remodel.

Granted the weather has been crazy lately with subzero weather one day and 40's the next but the house is running a few degrees warmer than I'd like. I saw a post from SWEI recently about cranking thermostat to 80 degrees and then playing around with the ODR to fine tune it. Since I have TRV's, is the best way to just fully open everything and tweak the curves that way?

SWEI

Exactly! Crank them all up, along with the thermostat(s) and then start adjusting until you have a consistent indoor temp. Once that is done (which could take weeks) shift the curve upward a bit on both ends to give you a higher indoor temp (e.g. 75˚F) to give the TRV's some range to work with (think visiting elderly person, someone with the flu, etc.)

CapeCod

Great, thanks for the quick response SWEI. Now I know how I will spend the long Thanksgiving weekend!

SWEI

Good luck. I'm still routinely amazed by how well ODR with constant circulation can work. FM for sure.