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Posted by rbeck on October 22, 2007 at 06:26:41:
In Reply to: replace my old boiler or convert to forced air ? posted by Craig S on October 17, 2007 at 17:24:32:
The problems in the piping could be a problem but just in the wet return. This is any piping below the level of the water in the boiler. The can be replaced if in bad shape.
A new steam boiler will operate far more efficiently than the old one. The near boiler piping and good system venting is the key to a good operating steam system. Will it be as efficient as a new warm air system? No, but it will be more comfortable and less heat loss due to less air currents. The warm air system can operate about 90+ efficient and the boiler low to mid eighties. Look at the cost difference and comfort levels. A warm air system will allow the addition of air conditioning in the future. In my opinion system only work best for what they are designed for. I prefer separate heating and cooling systems. If a duct system is designed for cooling it works best for cooling. If designed for heating works best for heating. It cannot work optimal for both.
Again good near boiler piping, fast venting main vents, replace all radiator vents, clean the water and you will save a good bit of money in operation and have a well balanced, comfortable system.