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[Roger2561]

Okay, my new indirect hot water tank arrived this morning.  When I talked to the guys behind the counter yesterday afternoon, I told them to add an anti-scalding valve and an aquastat.  I mentioned to them that they are the experts so if I forgot something to please add it to the shipment.  When the tank arrived this morning they delivered the anti-scalding valve and aquastat but they also added a circulator pump.  I asked the truck driver if I really needed it.  I explained to him that the tank will be connected the 4th unused heating zone, essentially using the zone valve in the zone.  I have 3 baseboard heating zones in my house.  The heating system has a circulator pump on the return line to the OWB so wouldn't that be enough?  He said he's just a delivery guy not the hookup guy.  So, can you kind folks offer me some guidance on how to set this thing up and is the circulator pump needed?  Thanks, Roger

[Bill G]

Roger,

    Glad the sites back Heh!!!  You just cut into you incoming line and run that through the boiler mate.  Anti-scald valve should temper the water on the domestic side.  Think your pump from OWB will have no problem running through boilermate tank.  Hopefully more experience will chime in here for us. 

    Way to go Roger, take the bull by the horns and reap the benefits!!

    Don't think you need and aquastat this way either.  Seems like they were setting you up to run it as a seperate zone.   

[Roger2561]

Roger,

    Glad the sites back Heh!!!  You just cut into you incoming line and run that through the boiler mate.  Anti-scald valve should temper the water on the domestic side.  Think your pump from OWB will have no problem running through boilermate tank.  Hopefully more experience will chime in here for us. 

    Way to go Roger, take the bull by the horns and reap the benefits!!

    Don't think you need and aquastat this way either.  Seems like they were setting you up to run it as a seperate zone. 

Bill G, The idea of cutting into the line from the OWB is the simplest way to connect it.  But, I do not use my OWB in the summer.  I'll have to rely on my oil furnace to heat the water for potable use.  Presently my system is setup;  Water from OWB connects to the oil furnace (in case I lose the fire in the OWB I will still have heat in the house), through a manifold where 3 zones are setup to heat the 3 seperate zones, through return manifold, through a circulator pump, through the oil furnace and then out to OWB to be rewarmed.  Years ago when the system was installed installed, the HVAC guys put in the 3 zones but capped off the 4th zone at the manifold.  Do you know if I can simply use this 4th unused zone to provide the hot water needed to heat the water in the tank?  Let me add that when the supply company delivered the tank, they also added an aquastat, anti-scalding valve and a circulator pump.  I understand the need for the anti-scalding valve and the aqaustat but the circulator pump confeses me.  When I asked the delivery guy about it, he said he did not know due to being just a delivery guy.  Perhaps someone on here can shed some light on this for me.  Thanks for your help.  Roger 

[Bill G]

Roger,

     You could use the 4th zone to hot water heater, just set it up like the other zones.  Only difference will be, instead of t'stat controlling the the pump relay, the aquastat will signal when heat is called for in the hot water system. 

     A couple different ways to do it, but if you follow the same format as already laid out, that 4 zone is fine.

[Roger2561]

Roger,

     You could use the 4th zone to hot water heater, just set it up like the other zones.  Only difference will be, instead of t'stat controlling the the pump relay, the aquastat will signal when heat is called for in the hot water system. 

     A couple different ways to do it, but if you follow the same format as already laid out, that 4 zone is fine.

My only concern is what wire goes where in the aquastat.  Other that, everything else is pretty much straightforward. 

The circulator pump they delivered, I'm hanging onto it, just as an insurance if the one at the OWB decides to go belly up.  Thanks for your help.  Roger