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Posted by Noon-Air on May 3, 2007, 3:09 pm
> sounds like its not a thermostat issue, so installing a 2nd stat won't
> help.
> What you most probably have is a zoning issue.
> Let me guess... 2 floors and only 1 system.
> To correct your problems is not going to be cheap and will result in at
> the very least, either having the ductwork re-designed/replaced with
> zoning damper(s) and the appropriate returns and bypasses.
> OR you can replace the downstairs system with a smaller one, install an
> upstairs system, and redesign/replace all the ductwork for both floors
> Either way, its not going to be cheap, and its not what you wanted to
> hear.
> FWIW, I just quoted a simular type situation for 2 heat pump systems, with
> the appropriate ductwork, and complete installation for around $25,000.
> (sorry about the typo in the first try)
>
>>I am not an HVAC tech. I was wondering if it is possible to add a 2nd
>> thermostat to my HVAC system. Currently, I have a digital thermostat
>> downstair and was planning to add a 2nd one upstair. The reason for
>> this is because, during summer time, upstair will still be very hot
>> and the thermostat will shut down the AC since it has reach the set
>> temp downstairs. I plan to use one thermostat at a time only. During
>> daytime, it will be the one downstair and duirng night time it will be
>> upstair. I plan to connect the 2 in parallel. Do you see any problem
>> with this type of connections. I know there are wireless device out
>> there, but I still prefer hardwire.Appreciate any input on this.
>>
>> Thanks
>> Tony
>>
>
>
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