Geothermal Ground Loop Installation Video
Filed under geothermal videos
Filed under geothermal videos
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I just had an Envision WaterFurnace installed. The furnace required 6 – 200 ft loops installed an when they connected them they put a Tee in the 1 1/4″ header pipe and split feeding the loops so 2 are on one side of the TEE and 4 are on the other side. I have a diagram I can send in PDF format.
|—|—-Tee–|—|—|—| Feed
O O O O O O
|—|—-Tee–|—|—|—| Return
The “Tee” makes the connection to the pump in the house.
I have not seen this type of configuration before and was concerned about the efficiency of this configuration. Normally the vertical loops are fed from one side and returned on the other to equal balance and use all 6 loops. In my case, I’m worried that the loops at the ends are not going to be used much and the one closest to the TEE will be used the most.
Can you please comment on this configuration? Please let me know if I need to provide more information.
Hi Tom,
You’re right, headers must use either a reverse return set-up or closely spaced tees to ensure that balanced flow is delivered to each borehole, and there should be an even number of loops on either side of a tee like the one you’ve shown. From your schematic I can’t tell if there’s a reverse return, but at the Tee you’ll get roughly half the flow going in either direction, so the flow in the 4 loop branch will be under spec and the 2 loop branch, over spec. Please send your PDF and I’ll have a closer look.