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  1. Useing Heat Pump Hot H2O heater with oil fired hot water

    Evening,

    Looking to get off oil even more than I already am. I have a heat pump, but cut over to oil below 25 F... Not a great winter for my set up... but the last few years have been...
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    I trust your judgment. I will take my cut over...

    I trust your judgment. I will take my cut over closer to 25F. Thanks for the pro advice.

    Cheers!

    Best regards,

    jrongo
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    I have an ASZ 14 SEER 4 ton Amana - That is where...

    I have an ASZ 14 SEER 4 ton Amana - That is where I got the COP numbers I pasted into post #5

    Best,

    jrongo
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    You are right, the question was only about cost. ...

    You are right, the question was only about cost. I have no back up heat strips in my duct - I go heat pump or oil after the cut over.... I am going to use 34 degrees and hope the thing the heat...
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    Basically I would like a COP that does take into...

    Basically I would like a COP that does take into account defrost mode so I can calculate where my cut over should be...

    best,

    jrongo
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    Yes - I am interested to hear feedback as well...

    Yes - I am interested to hear feedback as well
    no way the COP at 0 F is 1.82 if in defrost mode say 25% of the time...


    Temp COP

    -10 1.34
    -5 1.59
    0 1.82
    5 2.03
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    I was looking for somthing with a little math...

    I was looking for somthing with a little math behind it

    Thanks so much...

    best,

    jrongo
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    Duel Fuel cut over with defrost mode

    I am using this website to try and calc. my cut over outside temp for best $ savings:



    I am using an electric rate of .186 per kw
    I am using a COP of 3.17 (but not sure about defrost mode) @35...
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    I had a very similar problem. Outdoor probe for...

    I had a very similar problem.
    Outdoor probe for White and Roger’s stat was on installed on the South side of the house. I was not in direct sunlight however, it was above a roof that was getting...
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    1 stage - 4 Ton - 14 SEER - ASZ (Amana) heat pump...

    1 stage - 4 Ton - 14 SEER - ASZ (Amana) heat pump with matching hoz. coil.
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    Heat coming off outdoor compressor

    How ‘hot’ should the air coming off the outside compressor be when the AC is running?
    I often look at other’s AC units and it seems my unit’s waste heat temperature is much lower then others I look...
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    I have owned an Amana heat pump for 10 months...

    I have owned an Amana heat pump for 10 months now.
    Had the ASZ14 – 4 ton installed in May.
    Very happy with it, not loud at all, energy bills went down by a good 20% compared to the old mess that...
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    I own the ASZ14, 4 ton unit. I have had it for 6...

    I own the ASZ14, 4 ton unit. I have had it for 6 months now.
    So far so good, does not make too much noise and it has been keeping the house very comfortable in summer and now in fall as well. I am...
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    Heating oil prices

    Do #2 heating oil prices tend to be the same all around the US with the exception of taxes?

    I would like to see prices from all round so please post them if it does not break pricing rules...
    ...
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    risk to high not to have load calc.

    As a non pro you can dismiss my 2 cents but I will drop them in the pan anyway….

    If you are getting a new outdoor unit, matching coil, new furnace (air handler) and all new duct work you are...
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    Father/Daughter Chat

    Got this email last night - not sure how long it has been out there but it was the 1st time I saw it...

    Father/Daughter Chat

    A young woman was about to finish her first year of college. Like so...
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    Beenthere – Was starting to think that you did...

    Beenthere – Was starting to think that you did not own any clothes…
    You are usually one of the 1st to replay to any post… Then I thought… that guy is in front of the computer so often clothes are...
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    wow - 2 very strong anti - opinions... why do...

    wow - 2 very strong anti - opinions...

    why do you guys think it will not work as described on the web site?

    I am not so sure it is a scam...

    1) I called the company and they truly are...
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    New clothes dryer - HVAC tech inventor

    Anyone see this clothes dryer retrofit?
    Very cool - will pay for itself in a year if you have a large family

    Do you folks think it will it work as well as they say?

    They are doing UL testing...
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    HeyBob – my pool heater does have one, I tried to...

    HeyBob – my pool heater does have one, I tried to post pics but ran out of time this weekend. See links below.

    ISOTHERMAL – I am not going to fire him I only have the guy open & close the pool...
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    TP valve and propane pool heater

    So after reading about HWH becoming IED's in the middle of the night I tested the TP valve on my oil HWH. Lightly pulled on the valve handle, valve let out water, I let go of the value quickly and...
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    Me too - my wife thinks I am sick, I am starting...

    Me too - my wife thinks I am sick, I am starting to think she maybe correct
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    Jopopsy, Are you answering a question or...

    Jopopsy,

    Are you answering a question or asking one or both? Do you have a W&R stat? Why is you cut over 36*? I am not trying to be a wiseguy but ya lost me…

    Sonicview,

    I do have an...
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    Set back question and thanks…

    1st off, thanks!

    Got my 1st electric bill with my new heat pump, it was slightly lower than last year but rates are up from last year and I ran the unit way more often than I ran the old A/C unit...
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    Blower is a 5 ton 3/4 horse PCS motor. How...

    Blower is a 5 ton 3/4 horse PCS motor.

    How woud I handy-cap the added elcecitcal use of the blower into my cut over numbers?

    Sounds like tall order.
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