ok, i am now officially dizzy from the conflicting information i am getting from various sources.
here is the latest.
question: is it useful to install an outdoor reset on my peerless cast iron oil boiler (WBV-04)?
i called tekmar tech support. he said that as long as the target temperature reaches 140* each burn cycle, to vaporize the condensate, that i am good. he said the return temperature isn't important. in fact, their product purposely continues circulating after the burners have turned off, to pull more BTUs out of the water, simulating a 120* target temp.
meanwhile, i wrote to peerless tech support by email. they said "you can use an outdoor reset as long as the return temperature doesn't go below 150*"
who do i believe???