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Posted by Heatpro on November 30, 2005 at 11:44:19:
In Reply to: Re: To HeatPro and Joe Brix posted by Dave on November 30, 2005 at 11:26:38:
Yes, the 'wet time' should be short enough to be moot.
As the boiler would not be fired with water below 150F there should be no problem with condensate.
The low-temp bypass wouldn't exist because John Siegenthaler's zero-balance design IS a bypass and messes with his design if there is the other bypass within it. The bypass bypassing John's bypass is redundant and unnecessary.
You want to work on the idea of what 'series' means. If you want water to pass from the boiler to the tank and back again, yes, the tank has to be in series with the boiler on the manifold piping - but actually it is in parallel with the heating zones either way. The only way a buffer tank won't be in series with the boiler is to not have it in the circuit. The heating zones are in multiple-series-design configuration.