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Old 02-13-2010, 01:41 PM   #1
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multi zone control home heating - ?


Saw a system on one of the diy tv shows last night that used balloon pneumatic duct dampers at each register. They were controlled both by in-room wireless send/receive units and a Master Control panel that could assign a room (or group of rooms) to different temperature settings, by day & time.

Inflate/deflate for each pneumatic was done using an in-attic master panel and small air pump. Damper Tubing was run in-duct.

Cost was $5-gk + installation for a 13-zone system.

Anybody ever heard of these? I figure payback would probably be 6-8 years, depending on what part of the country you were in.

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Old 02-13-2010, 01:50 PM   #2
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multi zone control home heating - ?


I saw the same/similar show on This Old House Hour. There are some variables they did not talk about. Whenever you close ducts the pressure increases and you need a ECM variable speed fan motor or bypass dampers to relieve the pressure. If you close too many the A/C can also freezeup etc etc. I have worked in commercial bldgs and pneumatic lines can leak and other problems develop. I am not impressed with that system. The balloons when deflated will still obstruct airflow and less airflow causes A/Cs to freezeup. A proper zoning system uses dampers etc. Doubt if those guys will be in business 5-10 yrs from now and have parts is another concern.

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Old 02-13-2010, 01:55 PM   #3
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multi zone control home heating - ?


Sounds like an Arzel system.
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Old 02-13-2010, 02:18 PM   #4
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multi zone control home heating - ?


Yes, that was the show.





Quote:
Originally Posted by yuri View Post
I saw the same/similar show on This Old House Hour. There are some variables they did not talk about. Whenever you close ducts the pressure increases and you need a ECM variable speed fan motor or bypass dampers to relieve the pressure. If you close too many the A/C can also freezeup etc etc. I have worked in commercial bldgs and pneumatic lines can leak and other problems develop. I am not impressed with that system. The balloons when deflated will still obstruct airflow and less airflow causes A/Cs to freezeup. A proper zoning system uses dampers etc. Doubt if those guys will be in business 5-10 yrs from now and have parts is another concern.
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Old 02-13-2010, 02:19 PM   #5
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multi zone control home heating - ?


From what I saw on their site,the Arzel uses air-controlled Registers,rather than balloons.
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Old 02-13-2010, 04:13 PM   #6
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multi zone control home heating - ?


Arzel uses either/both dampers in the duct work, and has registers that have motorized dampers in/on them(for systems with concealed duct work.
Arzel DOES NOT use balloons.

The system you saw on TV uses a bypass when too many zones are closed. Also it opens other zones/dampers if the LAT is too high or low. To protect the system.
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Old 02-15-2010, 04:32 PM   #7
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multi zone control home heating - ?


SixStrRzr:
There are several zoning systems on the market today. Arzel has built the retrofit market over last 15 years. We feature blade dampers, driven by low-pressure air for longevity and robustness, in all shapes and sizes. Check out our web-site

Last edited by beenthere; 02-15-2010 at 04:57 PM. Reason: Removed link.
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Old 02-15-2010, 04:58 PM   #8
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multi zone control home heating - ?


Your not allowed to post links to your site, since you have a vested interest.
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