jimg wrote:I am planning or at least considering installing another EFM stoker (already have it). The unit currently in place is a 520 highboy with a badly rusted base, (I drilled and tapped 3 inch angle iron to each corner some time back), weak domestic hot water coil (never replaced) in over 50 years. I have a much newer unit that was originally set up for hot water sitting in my cellar. The unit is fired year round.
So I guess I have a number of choices, continue using the exisitng unit.
Refurbish the existing unit, new base, new domestic coil etc.
Install other unit as a steam system
install other unit as a hot water system.
I do plan to continue to live there for a long time, I hope, so while money is an issue it is not the primary deciding factor.
On other thing I would like to change is that I have 3 upstairs bedrooms that do not have heat, one that does, ($ was a deciding factor when my Father installed the system). Hot water would be more efficient and perhaps more easily zoned, but with good steam vents that isn't too much of an issue.
Advice and plusses or minuses would be appreciated. Also, how much more efficient is HW than steam? Thanks in advance, Jim
Refurb the 520 High boy it has more water capacity 74 gal Vs 40 to 41 Gal on a Standard 520 PM Me if you want a replacment high boy base . When you say a weak water coil do you mean it is leaking around the rubber gasket if so replace the gasket with a new one . If the steel is rusted out around the coil area then you need a repair Plate welded
on the back cut the bad area out and weld the new plate on flush . Make sure the welder has a R stamp certification.
find some cast iron radiators to install in the rooms with out heat radiators hold the heat better then baseboard does
a little more work with rads as far a weight goes .