Cascade Lake – Vertical Closed Loop
Private Residence
5000 sq ft, Donnelly Idaho
New Construction – 2 geoexchange systems connected to common closed loop
This home is located right on Cascade Lake. Space restrictions didn’t allow for a pit with horizontal slinky loops. Instead a driller was employed to drill six vertical bore holes. Loop piping was then installed and grouted back to the surface. We fused the loops together into a header system that would ensure even flow through all six loops and brought the headers into the home. Inside we installed two circulators, isolation valves, and connected to the water source heat pumps. As with all closed loop systems, the piping was then purged of air, freeze protected, and pressurized.
Mountain View
Private Residence
4000 sq ft, Boise Idaho
Retrofit – Connected to existing earth loop
WaterFurnace Envision 2-Stage, variable speed blower, with R410A.
Firebird
Private Residence 5000 sq ft, Eagle Idaho
Retrofit – Removed (2) propane furnaces and (2) A/C units
2-Stage WaterFurnace Envision and Intellizone system allows us to once again replace two heating systems with one geothermal unit. Connecting the ductwork from both units and installing the zones were challenging here, but ended up working great. We also went into the attic and replaced all the supply air ductwork to ensure proper flow to the upper level zone. Notice the main wall return right beside the unit in the basement. We will pull most of the return air from the basement area with by-pass ducts connecting the main living areas upstairs. This will cycle the air throughout the home and ensure constant pressure.
Eagle Hill
Top Private Residence 4800 sq ft, Eagle Idaho
Retrofit – Removed air-source heat pump and electric air handler
5 Ton WaterFurnace Envision and earth loop. After the install, this customer downloaded “Smart Meter” data from Idaho Power. He compared energy consumption over the last two years for the same two-month period. The WaterFurnace system was using half of the KWhrs per heating degree day. This is great data considering we replaced an air-source heat pump which are more efficient than std. gas furnaces. Even better is the fact that the customers keep their home warmer now, and still save 35% – 50% on energy each month. Aside from the smart meters, we have installed metering devices directly to the ground-loop heat pumps on several systems. The customer can look (at any time) and determine exactly what they are spending to stay comfortable.
High Desert Lava
Private Residence 2811 sq ft, Mountain Home Idaho
Retrofit – Removed propane furnace and A/C unit
This customer purchased this home, and immediately contacted us to install a geoexchange system. When he called the propane company to come and get his tank, they said “We are very sorry to loose you as a customer.” Apparently the propane truck was a frequent visitor during heating months. This is another earth loop that got modified due to lava rock. We changed the shape of the pit, and for the first time, brought in some clean fill dirt to backfill over the loop piping. This was a small expense compared to the savings over the life of the geothermal system. On a side note, this customer’s domestic water well was ~450ft deep with limited capacity. This made the closed loop system a much better choice.
