I know this is nothing new, but the last few months I am getting ripped on my natural gas heating bills.
$400-600/month for a 3000 sq ft ranch seems like alot. I have 2 complete heating systems and I think the problem is I am running them both.
I have an older 219kbtu boiler system with baseboard heat, plus a newer 80% efficient 120kbtu forced air system installed with the central air. my thought was to use the boiler system to maintain a comfortable low heat, and use the Forced air for quick warm-ups like first thing in the morning when you get up and the house is cold.
I would kill the boiler completely, but there are a few areas that the forced air just does not cover well, and I don't want the water in the zones to freeze.
I would kill the forced air completely, but there are also areas like the master bedroom that do not warm up well.
Can I add a mixture of antifreeze to the boiler to prevent line freezes?
Or should I go the other way and just use boiler heat?
Do the newer high efficiency boilers help much on fuel cost?