hot water furnace question


I have an old oil hot water furnace and I was wondering if I could reduce the amount of time and duration it fires up if I added a hot water tank before or after it? My father in law has a newer, multi zone one and I noticed he has a hotwater tank beside his. I noticed his doesnt come on as often as mine does.
My old one is dude for replacement in the next few years and I was also wondering in what way a new one is better?
mike
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miker wrote:

Actually, all other things being same, the higher the duty cycle of your burner, the higher the efficiency, for a couple of reasons. The tank is a red herring.
New unit, properly sized and set up, will likely be much more efficient.
What you can do right now: install servo-controlled flue damper. Insulate and seal house. Reduce heating to areas that don't need it. Maybe reduce spray-tip size a bit, to increase duty-cycle, in consultation with service tech.
J
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No, you don't. You have an oil fired boiler. Furnaces heat air, boilers heat water.
and I was wondering if I could reduce

I don't have any personal experience with them, but you can start researching here http://www.amtrol.com/boilermate.htm
In theory, a larger reservoir requires less cycling, but it still takes a given amount of energy to heat water to a given temperature. You want to do it as efficiently as possible.
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