I have a 4 zone residential application, 20 year old home with
baseboard heat with a new Buderus oil fired hot water boiler.
For an unknown reason, the first floor baseboard does not receive
It never has, even before the boiler was replaced.The baseboard at the
end of the loop is always lukewarm no matter how long the circulator
(taco oo7-f4) runs. I've checked the obvious (boiler temp,air bound
etc). It's not an unusually long run. On this zone I have 30 feet of
baseboard and two beacon morris K120 wall heaters. 3/4 pipe used in
the loop and the beacons are hooked up by venturi.
Other zones, even third floor, work well and the baseboard puts out
To try and solve the first floor problem, I would like to replace this
007-F4 circulator with a model with a lot more flow rate. Taco model
0011-F4 seems to be a good choice. Please confirm or recommend any
models or fixes that might be appropriate.