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Re: Replace or repipe this boiler?


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Posted by Joe Brix on October 24, 2005 at 10:21:30:

In Reply to: Re: Replace or repipe this boiler? posted by Dave on October 24, 2005 at 09:16:22:

The boiler pump would run only when the boiler fires. An Aquastat keeps the water in the buffer tank between 140-180. Maybe you can use outdoor reset to change the max temp of the tank as outdoor temp changes, but you don't want to go any lower then 140 so there's no condensation in the boiler and you can supply BTU's to the Phase III when it calls. All the other pumps will be secondaries off the buffer tank. Now the boiler will have a large mass of insulated water to heat up and not short cycle.


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