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  1. #1
    Join Date
    Dec 2010
    Posts
    28

    WiFi thermostat requires external transformer

    I'd like to put in a WiFi thermostat for my weekend home so I can turn on the heat prior to my arrival. My schedule is erratic so a simple programmable one won't work.

    The Filtrete (Home Depot brand, made by 3M) says it requires "HVAC power (C-Wire) or an external transformer). I pulled the cover off the thermostat and it only had two wires so I guess I need the external transformer.

    So, my question to you pros, is, how big a job is this? Am I looking at a couple hundred or a grand? What does the external transformer look like? Will it be an eyesore on my wall?

    Thanks,

    Bob

  2. #2
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Are you saying that Home Depot has a WIFI thermostat?

    How much is that thing?

  3. #3
    Join Date
    Dec 2010
    Posts
    28

  4. #4
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Ok.

    Looks like a Rebranded RiteTemp thermostat.

    Whats funny is its not even UL listed.

    I dont think the transformer will be mounted on the wall -- unless you get the installer off gregslist.

    Most comanies could install this for 1-2 hours labor I would think.

    You just might have to endure some ridicule for the stat!

  5. #5
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Wow! Talk about so not being a DIY job. Many contractors would need to spend time figuring out the proper parameters for installing this.

    Not that it is not a great idea. Ecobee has had their WiFi capable stat out for several years now. It's just not something that HO's should be led to believe is an easy DIY job.

    Since there are many ways for a DIYer to accidentally damage existing controls and equipment transformers in the installation of this t-stat, I must recommend that it be professionally installed by an HVAC contractor.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  6. #6
    Join Date
    Dec 2010
    Posts
    28

    Turns out it's not so hard

    They sell the proper transformer/adapter for $14.00 and it is properly coded to attach to the terminals. As long as the power is off, it seems easy. Luckily I have wall power just a few feet below the thermostat.

    http://store.radiothermostat.com/24V...sformer-PA.htm

  7. #7
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Quote Originally Posted by RVH View Post
    They sell the proper transformer/adapter for $14.00 and it is properly coded to attach to the terminals. As long as the power is off, it seems easy. Luckily I have wall power just a few feet below the thermostat.

    http://store.radiothermostat.com/24V...sformer-PA.htm
    Good luck.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  8. #8
    Join Date
    Dec 2005
    Location
    Cincinnati, Oh
    Posts
    5,042
    Quote Originally Posted by RoBoTeq View Post
    Good luck.
    Really. We'll pray for you.

    The sad part is RVH...your way off.


    Call a pro. It'll be ALOT easier.

    Infact, I will tell you, that if you put that transformer on, the only thing your going to produce is smoke.
    "Better tell the sandman to stay away, because we're gonna be workin on this one all night."

    "Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."

    "Just get it done son."

    Dad adjusted

  9. #9
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Quote Originally Posted by hvacvegas View Post
    Really. We'll pray for you.

    The sad part is RVH...your way off.


    Call a pro. It'll be ALOT easier.

    Infact, I will tell you, that if you put that transformer on, the only thing your going to produce is smoke.
    Transformers don't produce smoke. They run off of smoke. And when you let the smoke out, they won't run any more.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  10. #10
    Join Date
    Mar 2010
    Location
    Cleveland Area
    Posts
    30
    What kind of equipment (manufacturer) do you have at your weekend house? Trane, Carrier, etc.?

  11. #11
    Join Date
    Jul 2009
    Location
    Grand Rapids, MI
    Posts
    68
    Edited by mod

    Only professional members of this site are allowed to give DIY advice, and even then it must be limited.
    Last edited by k-fridge; 01-24-2011 at 05:01 PM.

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