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  1. #1

    Bryant 80v "PerfectHeat" fan setting

    We recently had a Bryant 80v (315AAV048090) furnace installed.

    For the PerfectHeat feature to operate best, should the fan setting be left to "Auto" or to "On" to keep temperatures even through the house?

    We have a Bryant "Preferred Programmable" (T6PRH) thermostat.

  2. #2
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    That depends on the house, the duct work, your lifestyle, etc...

    If your last furnace wasn't 2 stage it probably doesn't matter - this is likely to be much more comfortable either way. Run the fan if you have a media filter and want constant air cleaning.

    Why didn't you get a high efficiency furnace?
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  3. #3
    Join Date
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    Lancaster PA
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    Try it both ways, and see which way feels better to you.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #4
    This unit replaced a single stage, so we're sorting out how best to set the programming. Have to say that our humidifier has never worked better (this is an arid area).

    Didn't get a high efficiency unit because our basement is finished. The contractor said there would be a good bit of "demolition" involved to install the additional venting required for a 90+ unit, and the venting would be unpleasant near our deck. Too bad the industry can't reuse existing ventilation, I'd have preferred a high efficiency unit.

    Thanks for advice.

  5. #5
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    For the most part.
    It should make your house more comfortable then the old unit did, with the fan set to auto.

    Some homes have an room or 2, that lose heat a little faster then the rest of the house.
    The furnaces board has no way to know this.
    And in those situations, the blower runing 24/7 makes the home feel better.

    A little testing by you, will tell you your best set up.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #6
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    Quote Originally Posted by beenthere View Post
    For the most part.

    Some homes have an room or 2, that lose heat a little faster then the rest of the house.
    The furnaces board has no way to know this.
    And in those situations, the blower runing 24/7 makes the home feel better.
    Concise, easy to understand, nicely put. I'm going to plagiarize that one.
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  7. #7
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    Quote Originally Posted by rockyjim View Post
    We recently had a Bryant 80v (315AAV048090) furnace installed.

    For the PerfectHeat feature to operate best, should the fan setting be left to "Auto" or to "On" to keep temperatures even through the house?

    We have a Bryant "Preferred Programmable" (T6PRH) thermostat.
    ahhhh i think ya should a went with the Infinity stat..........with the 315......but hey whadda I know...

    either way, what's up with yer IAQ stuff............

  8. #8
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    Quote Originally Posted by Roscoe View Post
    ahhhh i think ya should a went with the Infinity stat..........with the 315......but hey whadda I know...

    either way, what's up with yer IAQ stuff............
    That's not very helpful without an explanation of what it does better than the one they got.
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  9. #9
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    Quote Originally Posted by tedkidd View Post
    That's not very helpful without an explanation of what it does better than the one they got.
    Well aren't you just the hvac-talk critic.

    ok I'll play hows this for starters......I pulled this from another thread.......

    If you're going the Infinity route, you really want the Infinity control...there's also rebates from Carrier (up to $1200) on the Infinity system. Carrier "Cool Cash" rebate---my brother got it last month.

  10. #10
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    u r right. Let me rephrase that. What feature/benefit will they get from the infinity stat that they don't have with the 350 (I mean t6prh)?
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  11. #11
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    This is futile I said Infinity stat when I meant Evolution...stat........same same..

    and you are using Bryant furnace #'s......350 is the Legacy Line. Straight 90's no frills, POS...........

    The man bought a Bryant #315, 2 speed Evolution Series, couple that with a 15 plus seer H/P...and an EVOLUTION CONTROL...he could probably get at least a $650 rebate from Bryant and a $400 tax credit,from uncle Sam

    . Not to mention a more comfortable house from the Variable,on board self diagnostic, and too may variables to list, without leaving the water heater orphaned .......or should we just rip the customer for another 3 G's for a direct vent W/H................

    Think about it we are not spending your money, we're spending the customers money, put yourself in their shoes...........Give them the best job you can for the right price.............

    I got a #315 and a #265 with an Evolution stat in my house, why would I ever sell someone something I wouldn't buy.................get it.....
    Last edited by Roscoe; 11-25-2008 at 01:51 PM. Reason: correct rebate

  12. #12
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    Roscoe, I'm having trouble deciphering your abbreviated comments - others who don't know Bryant stuff may as well. In other words, he got a powerful furnace and doesn't have the controls to make use of it?

    I'm getting familiar with Carrier - so would that be akin to getting an Infinity series then getting a single stage instead of an Infinity or Performance series t-stat?
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  13. #13
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    That's actually the most comprehensible thing Roscoe has said in....... ever.....
    Life goes on long after the thrill of living is gone.

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