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onlyinamerica
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Posts:16
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| 02/22/2006 9:16 AM |
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Hi all,
When I purchased my mixing valves at a local plumbing supply house, the guy, who was extremely knowledgable about radiant, pushed me away from some mixing valves due to quality constraints. He set me up with a Watts Radiant mixing valve and said the quality was far better than others he stocked. I've seen many others but don't know where the quality lies. Now, the watts had check valves to prevent backflow between the hot and cold. Aren't these just adjustable seat valves for the hot and cold and solely mechanical? Is it better rubber seats? Thanks!
onlyinamerica |
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Unregistered
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Posts:2321
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| 02/25/2006 10:09 AM |
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I've used the watts and the honeywell valves with no problems. If memory serves me though, the watts valves had a lower flow rate than the same size honeywell. I could be wrong as it has been quite some time since I have used a mixing valve, stick with name brands and you shouldn't have any problems. Do yourself a favor and forget the mixing valves and use injection mixing with outdoor reset. It will give you a much more comfortable home as you won't have to worry as much about overheating on warm days and lag time on cold ones. Just my two cents.
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onlyinamerica
Registered Users
Posts:16
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| 02/27/2006 9:59 AM |
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Yeah, I really like that and may have to do that. Since the Tstatic mixing valves are already plumbed with unions, will the injection mixing valves install readily or do they need to be replumbed? That would be a real pain.
Thanks
OIA
onlyinamerica |
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Posts:2321
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| 02/27/2006 3:15 PM |
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A floating action mixing valve may plumb in without too many changes, but I don't know. An injection mixing system will more than likely have to be re-plumbed. With injection mixing, you have a system circulator that runs the loops. When the water temp in the loops reaches a certain temp. an injection pump adds hot water from the primary loop into the system. The nice thing about this system is the water temp in the floor is changing inversely to the outdoor temp. The microprocessor that runs the injection system will tune itself over time to run your house as efficiently as possible. Check out the Taco radiant mixing block or the Wirsbo 701. They are both identical and made by the same company.
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