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George

wrote:
My daughter has a 15 year old house with an oil fired boiler. The unit
was the top of the line and has is operating at 80% efficiency
according to the latest tuneup She has a gas line into the house. In
our area oil is more than twice as expensive as natural gas per therm.
My options are to replace the oil burner with a Wayne conversion
burner and leave the boiler in tact, 3 hour job for myself. With this
option I can run the tank dry (she has about 250 gallons left) and
then replace the burner.
My other option is to replace the entire unit with a Triangle Tube
high efficiency boiler. To do this will require a 2 day operation and
I will probably have to do the replacement before the heating season
begins.
Any suggestions? BTW she used about 900 gallons last year.
Thanks, Richard

Since your reason is economy and not replacing a failed system etc then
you need to compute the life cycle cost. What will "A" cost and what
will "B" cost over time?