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Posted by Dave on November 30, 2005 at 12:04:28:
In Reply to: Re: To HeatPro and Joe Brix posted by HeatPro on November 30, 2005 at 11:34:45:
Forgive my confusion, but it sounds to me like there are 2 options.....
1. Leave most of the piping the way it is and put a storage tank (with 1 inlet pipe and 1 outlet pipe) in the boiler loop that simply allows hot water from the boiler to pass through the tank essentially making the boiler a high mass boiler. All other manifolds/pumps would stay the same in this configuration. The downside of this would be we'd be sometimes passing hot water from the tank through a cooler boiler which would then extract/waste some of that heat.
2. If we wanted to fix the issue of the heat loss from the tank to a cool boiler, we could use a storage tank that has 2 inlets and 2 outlets. One set of inlet/outlets would be piped directly into the boiler loop. Then the existing supply manifold would attach to the second outlet on the tank and the existing return manifold would attach to the second inlet on the buffer tank. In this situation, wouldn't the individual zone circulators still do the function of having zone valves and also allow us not to have a second 0010 pump?
I'm just trying to rework things and not have the plumber tear the whole system apart.
If we did go the route of the second option, would it save significant money efficiency-wise over option 1?