| Name: |
Smitty
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| Subject: |
Heat Pump
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Date:
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12/12/2007 10:02:17 AM
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Does anyone know how to prime a pump that brings water in from the lake to a heat pump? Who would know?
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With the lake this low, it may not have the ability to pump. All pumps have a maximum lift capability that depends on the size of the waterline, pump power, impeller, and other hydraulic issues.
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| Name: |
Osms
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| Subject: |
Heat Pump
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Date:
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12/12/2007 10:56:57 AM
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Make sure your intake hasn't been covered by the silt line that moves down as the water goes down. Silt here is at least a foot deep just below the water line.
I sure would like to know more about the efficiency of your water/heat exchanger heat pump. I've seen some that show a 20 to 27 SEER, that looks real attractive.
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CALL R&R REFRIGERATION OUT OF DADEVILLE
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| Name: |
Summer Place
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| Subject: |
Heat Pump
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Date:
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12/12/2007 11:42:05 AM
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I installed a Geothermal System last year.. This is the best investment you can make if you are planning on staying there for the payoff. Water circulates thru a coil of pipe in the lake year round. In the summer you get all the hot water you want for free. I cut my power bill in half. I have had no trouble with the circulation. It is called a Water Furnace.
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| Name: |
Osms
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| Subject: |
Heat Pump
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Date:
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12/12/2007 12:18:30 PM
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I was told when I built that APCo would not allow the 'coil in the lake' type because that system runs freon through the lake coils. Right or wrong? Anyway, what do you think the pay-off period would be for full time residency with your system.
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| Name: |
rude evin
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| Subject: |
Heat Pump
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Date:
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12/12/2007 12:33:41 PM
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Smitty........I may not understand the question, but I thought those type systems were closed looped rather than one that would "draw" water from the lake. Either way, APC customer service type personnel may be able to recommend a dealer that installs water source heat pump systems.
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| Name: |
Summer Place
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| Subject: |
Heat Pump
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Date:
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12/12/2007 1:30:32 PM
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You are right about the antifreez in the coils. This method is used up north where the climate is colder. In the south just water is used in the coils. For the cost vs return their would be several factors. One which you mentioned, if you lived there but also the size of your house.
Based on todays energy cost, the payoff would be shorter. Five to eight years I would guess. There are other positive factors. No loud air compressor outside running all the time. No gas or fumes to put up with.
The inside humidity is a non issue. Bass Comfort Control out of Wetumpka installed my system.
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| Name: |
Osms
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| Subject: |
Rude
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Date:
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12/12/2007 2:47:23 PM
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The type system he is referring to would draw lake water through the heat exchanger and and then return it to the lake. Not a closed loop. Drop your intake into about 40' of water and you've got a steady water temperature for both summer and winter.
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| Name: |
Summer Place
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| Subject: |
Rude
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Date:
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12/12/2007 3:57:20 PM
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Only problem with with this system is that the lake water will eat your coils up.
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| Name: |
Osms
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| Subject: |
Eats Up Coils?
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Date:
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12/13/2007 10:29:03 AM
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That's surprising, since we drink that same water. Copper coils or aluminum? In the Florida Panhandle, some developments use shallow wells (read salty water) to cool heat exchangers--wonder if they have a corrosion problem.
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| Name: |
Smitty
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| Subject: |
Eats Up Coils?
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Date:
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12/13/2007 2:04:28 PM
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Thanks to everyone for the helpful responses.....really appreciate it. Have a great Holday!!
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| Name: |
sagetek
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| Subject: |
Priming
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Date:
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12/13/2007 6:57:42 PM
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The maximum theoretical lift for any pump that sits above the water level is 33 feet VERTICALLY from the water level to the pump level.
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