Help! I moved into an older condo a few months ago and now with winter approaching, I need for the heat to work. The unit has several heat registers throughout but no instructions were provided on how to use it. There is one register that has a large knob (says Honeywell/Braukmann on it), numbering from 0 to 6 and there is a red button on the side of the knob. I checked for any sort of bleeder valves - there is a screw-top at one end on the diningroom register but the one in the bedroom has to be turned with a wrench (no screwdriver slot on the top). There are water valves but the only time I hear water going through them is when I turn them counterclockwise - isn't it's supposed to be the other way?? Forget about asking the property management company - I've already found out they're no help whatsoever and what neighbours I do know aren't very friendly. With single-pane glass everywhere, I'm going to freeze to death if I can't figure this out!! Thanks, Ciri

hey all, I have had a slant fin b200 natural gas boiler for aboutr a year plumbed with a 2 pipe primary/secondary scheme. I have recently run into some problems. It started with 2 radiators not heating. Those radiators are fed from a branch that feeds 7 raditaors (4 of which have no flow control valve). The branch is fed from a 3/4 pex tube that come from a manifold. Each port of the manifold produces 2gpm max. I figured that the 2 gpm simply could not feed 7 cast iron radiators. I had a friend (mechanical engineer) come in and he added t-fittings to the feed and return line and connected the 3/4 pex that feeds the afformentioned branch to them. This seems to have worked as now all the radiators in the house come on and are fairly well balanced. A new problem has now developed. When the boiler runs it will not get past 140f unless I restrict return flow to the boiler. I am assuming the problem is that too many gpm are flowing through the boiler and not allowing the boiler to heat the water. At the same time the return water temperature is higher than it should be. With a supply temperature of 140 the return temperature will be ~135. This is not good because it is pushing the boiler out of condensing mode. I am assuming the problem is the primary/secondary plumbing. When I restrict the secondary (return) the primary pushes more water down into the secondary/return basically pushing just heated water into the boiler's return. I am wondering if I should just remoed the primary/secondary system? What I did notice is that slant-fin mandates the use of a Taco 0011 circulator pump on the return side. The installer, however, used a taco 1400-45 pump which flows 25gpm more. I am wondering if my system is just over pumped....There are two pumps, return pump is the 1400-45, supply side pump is a taco 0010. any insight is appreciated!