Howdy, all!
My 83-year old father is worked up (and my mother not worked up but cold) about parts of his almost 100-year old house in a Philadelphia suburb remaining unexpectedly cold.
History: The original system is almost 100 years old, now with a 15-year old large natural gas large furnace. Long ago (>20 years ago) the original circulator motor burned out at an inconvenient time. Told that many systems in older houses could run by convection (or gravity feed?), we tried that for a day and (by jiminy) it worked--the response time for a room to heat was not discernibly different than with a functioning circulator pump. So the system was left that way (with the circulator motor path out of the circulation loop).
>Flash forward 20 yearsPresent