I want to do some energy conservation/money-saving work on my early 1920's brick/stucco bungalow. The windows are all the original double-hung, weight & pulley, wood storm & screen windows. There's little or no insulation in the walls and some in the ceilings. Most of the 2nd floor is finished; what is unfinished is being used for storage. Heat is hot water radiators.
My question is where do I get the best value for my money: insulation, replacement windows, or boiler? Any thoughts on best value for a house of this vintage? I'm sort of leaning towards insulation and replacing window weights & pulleys with spring balances.