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[fryedaddy]

I just bought a new Hicks water stove and the blower is controlled by a Honeywell Aquastat.

The type of stove I bought is a little different than the brands represented on this site.
It's an in shed type OWB with a 600 Gallon capacity (after firebox).
I would like to setup a timer so I can load wood, set the timer and
walk away.

My current setup allows for heating a large capacity of water then using it overnight.
After 12hrs the wood is burnt and the fan is blowing on coals cooling the firebox & water.

What type of mechanical timer would you recommend?

[AirForcePOL]

I don't understand why you don't want to use an aquastat?  I would think that you would just want to keep the fire going all of the time. 

[fryedaddy]

I will be using the aquastat but will add a timer to it.

As the stove is right now the aquastat cuts the blower on
when the temps drop below 150. If for some reason
I'm asleep the time will kick off and not allow the blower to
come on if the temp drops below 150.

[RSI]

So you just want to to burn once and then shutoff?

[fryedaddy]

No, I would like to set the timer for 8-12hrs.

I get home in the afternoon and load my stove. If I leave it the next morning I'll
have nothing but coals in the stove and cold air blowing in because it's not
at 150. If I hook the timer in front of the Aquastat, set it for say 6hr the timer
will kick off at 6hrs and not allow the fan to come back on. The Aquastat will
run normally except for a timer being added to shut off power at a certain time.

[paperman]

A timer may work but it would not be so automatic or efficient.  I would think a second temp contol would be better if you can swing it.  You would then have a low temp that starts the fan and a low low that turns it off.  Multi-step alarms are not uncommon.  Might take some tuning to get the spread right but I would think 5 deg should due.   

[willieG]

if i am reading correctly you want to cut the power to the blower if the temp falls below 150? if this is true you can buy a snap switch (just like that is in your aquastat now but it works in reverse)

i have (and i think most stoves )a high limit snap switch on mine for too high of temp. the hot wire goes to this high limint switch and then travels to the aquastat and then to the solenoid and blower..if for some reason the aquastat failed and the blower kept running when the water reached 190 degrees all power  would be cut to the stove, switch resets at 150)

what youare talking about is a snap switch that works in reverse..as long as the water temp is above 150 it remains closed (power to the stove is allowed) when the stove water goes below 150 the switch opens and all power is cut to the stove (your blower would quit)  im not sure if you can manually reset these or not (you may need to stand there with the door open  to allow the system to get back up to 150 before the switch resets?) you can probally find out with an online search or perhaps some one on the board knows?