I ended up turning off anybody want to by a cheap heat manger:laughing:Get rid of that deluxe timer you installed.
They admit, it doesn't work well(do much to save fuel) when the outdoor temps are low.
You would save more, by installing an aquastore tank. And not maintaining as high of a boiler min temp.
Thats when I bought mine and just got around to installing. I do have a tankless coil and set back t-stats so it's not working for me.domestic water gets cold half way thur shower.Damn it! I went to pick up a 1:1 out door reset astat for my boiler last year, and the guy at the counter told me about this heat manager. ok, so he sold me. I've had it sitting around since last spring. i finally put it in and seems to work ok. if what you guys are saying is accurate then i will be one pissed off Joe! What have you guys found to be the issues?