wrote:
On Mar 27, 7:33 am, Limp Arbor wrote:
On Mar 27, 6:37 am, "Steve" wrote:





ok, my source of heating my domestic hot water is a oil fired hot water
radiation furnace system.
my problem is it takes way too long from the time I turn on my hot water
taps to the point where i actually get hot water. The furnace has to turn
on, water has to flow though the coil in the furnace and then flow upward to
my taps. What I want to do is put in a non-heated storage tank (about 40
gallon) right after it comes out of the furnace. So when I turn on the hot
water taps, it immediately comes from the storage tank, as it gets filled by
the hot water coming from the furnace.
The tank would obviously be insulated very well to keep in the heat. Temp
of water going into the tank would be about 180-190 degrees.
Does anyone see any problems with this setup? Have any suggestions or
comments? I'm just throwing this idea out there.
My storage tank is an old oil fired hot water tank.
Thanks,
Steve Cornick
Your idea is a good one but may not be needed. Your domestic hot
water thermostst may be bad. When I had an oil fired furnace/water
heater the domestic water was hot all the time.

If you want to go with a storage tank they make them that behave as an
additional heating zone on your furnace.http://www.ebuild.com/articles/521433.hwx

If the problem is that your faucets are too far away you may want to
consider a hot water recirculation loop. This would require more
plumbing work and depending on your house tearing into walls.http://www.redytemp.com/hot-water-re...-it-works.htm- Hide quoted text -

- Show quoted text -


Lots of good advice above. To which I'd add, that if you were to
implement a storage tank, I'd probably just get an electric water
heater as the storage tank. That way it's guaranteed to have water
at or above X temp. Since you'd be pre-heating the water, the
electric usage would be very small. In the off heating season
months, it may also be cheaper to just use the electric heater.
Electric costs more, but it's 100% efficient, vs a lot less for a
boiler that's just being used for hot water.

If you add an electric water heater be sure to set its temperature below
the furnace water temperature. This way the electric only draws
current when the furnace cannot keep up with the load.

EJ in NJ