A bunch of the geo units I service are from the '80s some vertical loop and some open loop. Some of the units have out lived the companies that made them. I just went on a call for 5-ton Jacobsen Energy Industries unit hooked up to a vertical closed loop I'm not sure how old it is I believe it's from the late '80s. We service a Comand-Air/WaterFurnace installed in '85. It's in the basement of an old stone farm house. It's rusted but keeps chugging along. What's the oldest geo unit you have in operation?
Friend of mine has a WaterFurnace in his house. We put it in around 1988 when the place was built. On a pump & dump system.
There's a neighborhood in our suburb 200 homes or so, all on loop WF's. Many have been changed, some to air source due to their loops being placed under garages & driveways. But a few are chugging along 19 years later.
In March I switched out a TETCO Geothermal unit installed in 1980. The system had worked well ever since it's installation up until March. 29 years, not bad...
TETCO had been in business since the early seventies, they are the original geothermal system as far as I can tell. They obviously lacked the business savvy that some of the other guys had, otherwise they would be a lot larger today, and more well known. Got bought afew months ago...maybe they'll start putting out the same old last forever stuff that they used to.
Ran the wshp I custom built in 1974 up until 2 years ago when I upgraded. The old unit used water from our small pond, sometimes tried to freeze the pond.
1972 install
Watauga Texas has very old Spencer type Geo never seen one any where else..
"Everyday above ground, is a good day".
"But everyday that you have made a difference in someones life, may insure you stay above ground a little longer".<aircooled>
Then again, I suppose the really old geo systems are the ones that use the air from caves to condition a structure. The one that comes to mind is the Lauray Caverns building that is built over the entrance to the caves.
Because in the 1980's I used to work on two geo systems which were installed about 1961. The local electric company had them in their office building. Obviously built-on-site.
Which is really how all chillers used to be built - there was no such thing as a "packaged chiller". <g>
Carrier recip compressors, shell & tube heat exchangers, using well water. Neat old system. When the build was sold they ripped it all out and installed cheap RTU's.
sic transit purity - as usual.
PHM
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Originally Posted by csealer
A bunch of the geo units I service are from the '80s some vertical loop and some open loop. Some of the units have out lived the companies that made them. I just went on a call for 5-ton Jacobsen Energy Industries unit hooked up to a vertical closed loop I'm not sure how old it is I believe it's from the late '80s. We service a Comand-Air/WaterFurnace installed in '85. It's in the basement of an old stone farm house. It's rusted but keeps chugging along. What's the oldest geo unit you have in operation?
PHM
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The conventional view serves to protect us from the painful job of thinking.
Then again, I suppose the really old geo systems are the ones that use the air from caves to condition a structure. The one that comes to mind is the Lauray Caverns building that is built over the entrance to the caves.
I think I saw the oldest Geo in a Flintstones re-run last week.
the one we removed last year had a failed compressor. It was a 1964 cooling only geothermal. It was in a historic district and it had been using city water. Talk about expensive to cool. The duct work was original, supply went up and had a "T" and it cooled two rooms in the lower level of the house. This thing was frickin huge. I'll see if I got some pictures. Every company walked from it. I found the compressor shorted to ground. We replaced it with an air handler and condenser with a bit more duct. I forget what refrigerant it was running, it was not 22
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Originally Posted by RoBoTeq
1989 Geo
