coalkirk wrote:Wow and ouch. Sting is a font of knowledge and offers it freely. No one can give you accurate advice on your system without really seeing it. Sorry your expectations were not met and frankly Sting doesn't need or want me to defend him. But I think you were alittle harsh. If you really expect help here you might want to consider not pissing in the punch. Since you are apparently going to tackle this modification yourself, he just wanted you to understand what you doing before picking up a wrench.
Straight up answers are always nice, but may not be accurate depending on many variables. A true professional like Sting knows this, and would rather throw you a riddle or two, which makes a person think for themselves. Like CoalKirk says; Sting wants you to take a good look at your system, and try to understand what's going on. Not be a parts changer. Now for my un-professional opinion; 1.) I don't believe you need a dual return line. A bypass loop should keep the boiler water stirred up. 2.) For them few cold days, restricting water to the cellar radiation may work, or, put a switch in the basement thermostat wire. Turn the switch off during those bitter cold temps. Or, if your thermostat goes low enough, simply turn it down. I'm assuming you have the basement on it's own zone. 3.) If it's lag time you're concerned about, simply maintain a little bigger idle fire during them bitter cold periods. Oliver