: Does the fireplace run on propane? That's the only "gas" fuel
: think of that's delivered in liquid form.
CY:I think that's what he said in another post.
: Are the baseboard heaters hot water, fed from an oil-fired
: something else?
CY: Think that's it.
: >My question is when should I use the gas fireplace in order to
: >maximize heat and minimize cost?
: Answering that requires more information than you've provided.
: how you might go about it:
: - Look up the energy content of the propane, in BTU/gal.
CY: I had that figure awhile back. It's 21,500 BTU per pound.
: - Multiply by the efficiency of the fireplace to determine how
: those BTUs end up in your house. This number can vary widely -
: fireplaces look pretty but send most of the heat up the
: others have a heat exchanger to put most of the heat into the
: result will be in useful BTU/gal.
CY: Figure about 0.80 is a good SWAG.
: - Divide by the fuel price to get useful BTU per dollar.
CY: I'd think you'd want to get the dollars per BTU. After all,
we price gasoline by $ per galon. Though, BTU per dollar is also
: - Do the same calculation with oil. The efficiency of the
: depends on both the efficiency of the boiler and how much of
the heat in
: the water makes it into your rooms.
CY: Fuel oil, I remember is about 140,000 BTU per galon.
: When you're done, you should know whether it's cheaper to get
: from propane or oil. Then you have to take localization into
: If you're in the room with the fireplace, it's likely cheaper
to use the
: fireplace to warm just than room than it is to use the boiler
: the whole house, because the fireplace *isn't* warming the
: On the other hand, trying to use the fireplace to warm rooms
: the one it is in is likely pointless. The fireplace just isn't
: warm the whole house.
CY: Excellent advice.