# Distance from house to loop field

Discussion in 'Geothermal Loops' started by Hoosier1, Dec 30, 2016.

1. ### Hoosier1New Member

Is there max distance from the house to the loop field? I'm installing a 3 ton system using (3) horizontal (Supply and return separate) fields at 250' straight lines, 6' deep (No coil). My distance is approx. 200' with 20% slope. Also, should the lines be separate (Supply and Return) from end of field to house?

2. ### urthbuoyWell-Known MemberIndustry ProfessionalForum Leader

All good. We have lake loop systems 500' distant.

3. ### Palace GeoThermalWell-Known MemberIndustry ProfessionalForum Leader

the size of the pipe would be a limiting factor

4. ### Mark CustisNot soon.Industry ProfessionalForum Leader

or the size of the pump.

5. ### Hoosier1New Member

3/4" hose...Geo-Pulse Non-Pressurized Pump (Ingram's Water and Air)

6. ### waterpirateWell-Known MemberIndustry ProfessionalForum Leader

You need to get a friction loss chart, and get comfortable with " feet of head, and pump curves "
Eric

7. ### docjenserWell-Known MemberIndustry ProfessionalForum Leader

So 500' total pipe per circuit (3 circuits) and 200' of header pipe. What size of pipe for the loop field and header pipe?

How many pumps are on the flow center? What is the model number of the pump(s). The slope does not matter in close system.

Best if you draw a sketch of the loop field and the trench going to it, and the pipe lengths and pipe sizes.

You only need 9 gpm for a 3 ton system, should be easy to pump. Modern loop fields are designed for low pressure drop so pumping is easy and energy efficient.

8. ### Hoosier1New Member

Actually, 200' per each trench (Supply 100', Return 100') with a total of (3) trenches 600' on level ground. From there... 200' (20% slope) length of all (6) pipes going to house. Pump is a Geo-Pulse, it doesn't say much about the gpm on the unit.

9. ### docjenserWell-Known MemberIndustry ProfessionalForum Leader

How far do you keep the lines apart in the 200" header trench? The 3 x 200 will unlikely support a 3 ton system. Again the question what size pipe do you plan to use?