10-26-2010, 03:48 AM
Those slant fin units have very little mass. They seem to cool off way too fast and, the furnace has to keep cycling on to bring the heat back up.
My120 year old house (on Long Island), had gravity feed hot water heat with BIG cast iron radiators. Took a long time to heat the house after we returned from ski vacations (6~10 hours to rise from 50 to 67 degrees). I had some major work done several years ago and replaced the furnace. Every room where work was done got upgraded to new, in wall, cast iron radiators. My gas fired system now has circulators and two zones. Heat is up in minutes now (when away, I now leave the system set at 65. The new copper pipes have NO tolerance for freezing so, its cheaper to keep the heat up than pay for a burst pipe).
My120 year old house (on Long Island), had gravity feed hot water heat with BIG cast iron radiators. Took a long time to heat the house after we returned from ski vacations (6~10 hours to rise from 50 to 67 degrees). I had some major work done several years ago and replaced the furnace. Every room where work was done got upgraded to new, in wall, cast iron radiators. My gas fired system now has circulators and two zones. Heat is up in minutes now (when away, I now leave the system set at 65. The new copper pipes have NO tolerance for freezing so, its cheaper to keep the heat up than pay for a burst pipe).