Vertical bore holes are required to place 3408 hdpe 3/4" to 1.25" vertical pipe into the ground. This
pipe delivers the energy transfer between the earth and equipment.  Grout is needed to keep the
conductivity of the soil and the ground loop in constant connection. Thermal conductivity and
engineering of the system is imperative for systems operation.
Horizontal loops are put in either a 6 pipe configuration  or slinkeys.
The most cost effective and effective loop system installation but  takes alot of ground space to lay
the loop. Again, engineering of the system and thermal conductivity of the soil is imperative to the
system operation. Planed right, ground loops can pay you to be installed.
88hvac specializes in geothermal HVAC sytem. From Verticle wells, HDD Geothermal Drillers, 6 pipe installations, slinkey
installations, hybrid loop solutions, and Swiming pool loop installations. Our goal is a high efficient system that has the cost
beifits to go with it. Since 1999 we have been working in ground source geothermal industry, and not untill the energy needs of
2000 has there been a more need for green systems to curb energy use. Geothermal equipment today is much more efficient
than last year. Lets say in some cases there are systems that can operate at $1 worth of power and give you back $20 in heating
or cooling. COP 20? Give a call to discuss your energy saving solutions.
*Los Altos Hills Ca. Private residence
43 tons vertical 280'
30 climate master units
Uponor climate control net work- Internet EMS
4 Hi velocity Hi V
Radiant heating
wine room, indoor pool, dehumidifier Geo
*Orinda Ca. LEEDS PLATNIUM/ NZE
15 tons slinky. 15000 of hdpe
4 waterfurnace units
Uponor climate control Network-internet   EMS
3 Hi velocity Hi V
Radiant heating
Pool geo, wine room geo, hydronics
*Portola valley Ca. LEEDS Living Home Challange
69 Energy Pylons
Hybrid Hydronics System
*Monte Serino Ca. LEEDS Platinum / NZE
15 energy pylons
Uponor radiant heating and cooling
Hybrid Hydronic system
Saratoga Ca. Private residence /  NZE
1 waterfurnace ewo
Pool Hybrid / Solar assisted system
rehau rau panels radiant heating and cooling
tekmar controls
2 hyliodyne solar thermal
Mitsubishi ERV
*Throckmorton Fire Station Mill Valley Ca.  LEEDGOLD
8 tons vertical 300 ft per well
Climate master
* Children Library. Palo Alto Ca.  
20 tons 400 ft.  wells
Climate master
*Healdsburg Ca. Private residence
10 tons slinky.
2 Hi Velocity
Radiant heating
Hydronic system
*Geyserville Ca.  Private residence
8 tons. Slinky system
2 Waterfurnace Envision
R-8 Ducting
*Palo Alto  Ca. Private residence.
10 tons  280' vertical wells
3 waterfurnace ewo units
4 Hi Velocity Hi V units
*Loma Mar Ca. Private
14 tons HDD under pond , 300' lengths.
3 waterfurnace units
1 climate master
*Sea Ranch Ca. Ultimate Home project
LEEDS PLATINUM
8 tons vertical wells at 250'
4 waterfurnace
Radiant heating
forced air cooling
Hillsborough Ca.. Private residence
16 tons vertical wells. 280'
9 waterfurnace units
Radiant heating
3 Hyliodyne Solar thermal
Pool, wine room, Guest house , DHW  
*Boonville Ca. Private Residence
LEEDS PLATINUM
6 tons. 6 pipe system
Hydronic heating and DHW
*Palo Alto  Ca. Private residence.
8 tons  280' vertical wells
3 waterfurnace units
radiant heating,air cooling ,and heating
heating, cooling and water heating residential buildings, while saving consumers money,
residential geothermal heat pumps installed, more than 37.5 trillion Btu’s of energy used The
U.S. Environmental Protection Agency has identified geothermal heat pumps as a with
compared to conventional technologies.1 For every 100,000 units of typically sized for space
conditioning and water heating can be saved, corresponding to an emissions reduction of
about 2.18 million metric tons of carbon equivalents, and cost savings to consumers of about
$750 million over the 20-year-life of the equipment.
· Geothermal heat pump systems, also known as “geoexchange,” are the most energy
efficient, environmentally clean, and cost-effective space conditioning systems available,
according to the Environmental Protection Agency.1
· Geothermal heat pumps strengthen U.S. energy security. Every 100,000 homes with
geothermal heat pump systems reduce foreign oil consumption by 2.15 million barrels
annually and reduce electricity consumption by 799 million kilowatt hours annually. ·
Geothermal heat pumps are efficient. The use of geoexchange lowers electricity demand by
approximately 1 kW per ton of capacity. · Geothermal heat pumps are environmental. They
generate no on site emissions and have the lowest emissions among all heating and cooling
technologies. 1 · Geothermal heat pumps save money. Schools now using geothermal heat
pump systems save more than $25 million in energy costs – meaning more money for books,
equipmentmand teachers. Homeowners can save 25 to 50 percent on home electric bills
compared to conventional heating and cooling systems. Electric bills for a 2,000 sq. ft. home
can be reduced to as low as $1 a day, using a geoexchange system. · Geoexchange systems
represent a savings to homeowners of 30 to 70% in the heating
mode and 20 to 50% in the cooling mode, compared to conventional systems. · EPA found
that geoexchange heating and cooling systems can reduce energy consumption—and
corresponding emissions—by more than 40% compared to air source heat pumps and by over
70% compared to electric resistance heating with standard
air-conditioning equipment. · Geoexchange systems use the Earth’s energy storage capability
to heat and cool buildings,  and to provide hot water. The earth is a huge energy storage
device that absorbs 47% of the sun’s energy – more than 500 times more energy than
mankind needs every year – in theform of clean, renewable energy. Geoexchange systems
take this heat during the heating season at an efficiency approaching or exceeding 400%, and
return it during the coolingseason. GeoExchange Heating and Cooling
Systems: Fascinating Facts · EPA found that, even on a source fuel basis – accounting for ALL
losses in the fuel cycleincluding electricity  generation at power plants – geoexchange systems
are much more efficient than competing fuel technologies. They are an average of 48% more
efficient than the best gas furnaces on a source fuel basis, and over 75% more efficient than oil
furnaces. In fact, today’s best geoexchange systems outperform the best gas technology, gas
heat pumps, by an average of 36% in heating mode and 43% in cooling mode! · The U.S.
General Accounting Office estimates that if geoexchange systems were installed nationwide,
they could save several billion dollars annually in energy costs and substantially reduce
pollution.2 · Surveys by utilities indicate a higher level of consumer satisfaction for
geoexchange systems than for conventional systems. Polls consistently show that more than
95% of all geoexchange customers would recommend geoexchange to a family member or
friend. · Today there are now more than 1,000,000 geoexchange installations in the United
States. The current use of geothermal heat pump technology has resulted in the following
emissionsreductions:
 Elimination of more than 5.8 million metric tons of CO2 annually
 Elimination of more than 1.6 million metric tons of carbon equivalent annually · These
1,000,000 installations have also resulted in the following energy consumption reductions:
 Annual savings of nearly 8 billion kWh
 Annual savings of nearly 40 trillion Btus of fossil fuels
 Reduced electricity demand by more than 2.6 million kW
· The monumental impact of the current use of geoexchange is equivalent to:
 Taking close to 1,295,000 cars off the road
 Planting more than 385 million trees
 Reducing U.S. reliance on imported fuels by 21.5 million barrels of crude oilper year.
1 Environmental Protection Agency, Space Conditioning: The Next Frontier, Office of Air and
Radiation, 430-R-93-004
(4/93)
2 General Accounting Office, Geothermal Energy, Outlook Limited for Some Uses but
Promising for Geothermal, (6/94)
Ground Source Hybrid Syetems being commisioned include :
Hybrid geothermal systems with energy pylons - cement engineered caisons.
Swimming Pool ground loop systems- using a swimming pool as the
geothermal ground loop. Solar Thermal Hybrid systems- using solar thermal
to heat and cool a ground loop source.
Geothermal Heating , Cooling, & Hybrid Systems
Ground loops, Equipment, Controls, HVAC
Vertical Drillers, HDD Drillers, & Earth Work
Engineering & Conductivity Testing