Horizontal vs. Vertical Geothermal Systems Horizontal Pros: Cheaper Easy to install Cons: A lot of yard space required Can use up to 400 square feet of land Vertical Pros: Less invasive More efficient Cons: More expensive Drilling equipment used on your property
Solar-based Geothermal Evacuated Solar Tubes Used for water heating Installed on roof or wherever solar gain is highest Solar Chimney Similar to passive geothermal Helps regulate structural temperature Requires a tower be built, so better for new homes or under construction