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  1. A vibration absorber is basically what you just...

    A vibration absorber is basically what you just described, they are made by Parker and others for this exact purpose.
  2. One more thing… without knowing your water usage...

    One more thing… without knowing your water usage and temperature numbers, even so, it’s appears that your payback would be really fast, under 2 years. According to www.dsireusa.org, in Tennessee you...
  3. If you use a 5 ton heat pump to chill some or all...

    If you use a 5 ton heat pump to chill some or all of the water the cooling costs should be about the same as currently. And for every BTU removed from the water you will have ~1.25 BTU available for...
  4. I agree evacuated tube solar collectors are...

    I agree evacuated tube solar collectors are excellent for making free hot water, I have some on my roof ;-) About heat recovery, you have a couple possible opportunities but you are now at the point...
  5. Desuperheaters are installed between the...

    Desuperheaters are installed between the compressor discharge and the reversing valve, so heat can be recovered in either mode. Basically what you are building is called a "heat recovery water...
  6. No tubes or compressor issues at all. There may...

    No tubes or compressor issues at all. There may already be connections for a desuperheater sometimes on certain water source heat pumps. If not, it’s still easy, just cut the compressor discharge...
  7. Great idea! As you mentioned, sufficient pre-heat...

    Great idea! As you mentioned, sufficient pre-heat storage will be key however it can require a lot of storage and a high hot water demand to make it work out.
    To look at some numbers we can guess...
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    There's a good write up on several different...

    There's a good write up on several different types of solar air conditioners here
    www.hotspotenergy.com/compare-solar-air-conditioners/
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    Thanks to everyone who replied, I am glad I...

    Thanks to everyone who replied, I am glad I posted my question. This forum and it's members are awesome.
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    Thanks JP, this confirms one of the methods I...

    Thanks JP, this confirms one of the methods I have used before, but I had never seen it explained by any doc before. Excellent resource.

    Question - when all you know is the coil tube OD and length...
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    The purpose is to calculate the size of a needed...

    The purpose is to calculate the size of a needed receiver. The system uses a heat recovery valve to switch between normal and water cooled condensers. The head pressure is a little high on the water...
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    Hey thanks for the reply. I'm not sure where I...

    Hey thanks for the reply. I'm not sure where I got that term, my work crosses over many areas so I probably borrowed it from somewhere. And maybe it isn't even a good term. My ultimate goal here is...
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    Calculating Trane Condenser Volume

    Does anyone know a resource for determining the flooded refrigerant volume of Trane condenser coils? I have asked Trane support a few times for a simple piece of information - "what is the flooded...
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    Actually these so-called "solar hybrid thermal...

    Actually these so-called "solar hybrid thermal AC" systems use a solar collector (usually an upside-down high temp evacuated tube type) that is connected on the compressor discharge line, not on the...
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    It's a great idea. Actually for tank insulation...

    It's a great idea. Actually for tank insulation after the fact, consider the top is the warmest part so if you just insulate the top and the sides as far down as you can easily get to you will...
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    Thanks for sharing. This sounds like a great idea...

    Thanks for sharing. This sounds like a great idea as long as you don't take out too much heat which could interfere with the biology of the septic system. I guess a water tank only uses about 40 kbtu...
  17. Actually, using the pool as a heat sink should...

    Actually, using the pool as a heat sink should work out pretty well for the first 300,000-600,000 btu of heat rejection per day, depending on the the size, shade conditions, etc. of the pool. Make...
  18. The current platform is 5/8, but ultimately I...

    The current platform is 5/8, but ultimately I need 1/2, 5/8, and 7/8.

    Seems odd that after all this time that r410a has been in play, there are still so many r22 valves that have no r410a...
  19. Hey thanks. Unfortunately these normally open...

    Hey thanks. Unfortunately these normally open valves are not rated for r410a. Anyhow, they require a pressure differential. It may be that no such valve as I need exists due to rare demand. If anyone...
  20. Need help finding special solenoid valves

    Hello, hoping someone can help. I have been searching suppliers without any luck. I am working on a heat recovery application, need to find direct acting, fully bidirectional, normally open solenoid...
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    >use their pool in the winter as part of their...

    >use their pool in the winter as part of their geothermal heat pump to help cut way down on their energy bills

    As others have indicated this will not work because of the limited BTUs available in...
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    Poll: >The new inverter units have much better heating...

    >The new inverter units have much better heating capacities without much penalty for overcapacity in cooling. Look at those

    Totally agree. Variable capacity system is the best solution, much...
  23. Actually, a 36000 BTU unit will have to reject at...

    Actually, a 36000 BTU unit will have to reject at least 15000BTU per ton or total 45000BTU/h for 3 tons including superheat etc. So in a 8 hour day of running AC you would get somewhere around...
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    Formula for how long will it take? Water weighs...

    Formula for how long will it take? Water weighs ~8.33 lbs. per gallon. A BTU is the energy needed to change the temp. of 1 lb. of water by one degree F.

    You can back into your answer roughly by...
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    @SkyHeating Great comparison. Just to clarify,...

    @SkyHeating

    Great comparison. Just to clarify, I wasn’t considering if geo is the right choice, I think that’s a given whenever there is a free ground loop in place ;-)

    My point about propane...
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