Guide Series Water-to-Water

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Our new GeoComfort variable-speed, variable-capacity heating and cooling system adjusts the BTUH output to match the load profile for desired comfort settings. With the help of an outdoor temperature sensor, the modulating compressor adjusts to deliver the perfect water temperatures for a radiant or hydronic system application. This is vital because the efficiency of a water-to-water geothermal unit increases significantly with lower water temperatures.


Product Features

Available Literature

Installation & Operation Manual

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Product Brochure

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Technical Overview

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Homeowner's Manual

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Mortex Air Handler and A Coil Manual

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Product Specifications


Full BTU
Part BTU
Full BTU
Part BTU

Available Accessories

Variable-Speed Pumps (pressurized and non-pressurized)

Our system includes an integrated variable-speed load pump with plug and play electrical connections for the variable-speed flow center.

Indirect Domestic Water Heater

A high efficiency, high volume water heater that uses the variable-speed water-to-water to heat water on demand. The over-sized heat exchanger provides superior heat transfer, thus giving you the most efficient and highest capacity geothermal water heating system available.

"A" coil (hydronic)

The specially matched "A" coil allows the split geothermal system to be added to an existing air handler or furnace in retrofit applications. Additionally, the "A" coil can allow the system to operate in a dual-fuel application where backup heat is supplied by a traditional furnace.

Programmable thermostat

Keeps the home more comfortable by operating the unit on a set schedule and temperature range. This also saves on energy costs by setting the unit back while the home is unoccupied.

Consumer purchase plans

With a wide variety of payment options and terms, our consumer payment plans make installing a geothermal system easier and more cost effective. By deferring your initial payments out, you can start enjoying your new system earlier and take time to obtain many of the various rebates and tax credits offered.

Electrostatic filter (washable)

This type of filter is a permanent media filter that can be washed from time to time as needed. This eliminates the need to buy new filters.

EWC zone control

These highly sophisticated controls work with dampers in the ductwork to create multiple zones throughout the house. You can utilize one unit, but have different temperatures in each zone. The control panel controls both the unit, and the zone dampers.

Auxiliary external electric heater

Adds that little bit of extra heat on those few coldest days. Also helps to balance the system size by balancing out those few extreme days. These heaters are installed in the supply air duct outside of the unit. Mostly used on horizontal style equipment.

Air handler (hydronic)

These multi-positional air handlers are specially matched to our split systems for maximum performance. The air handler can be installed in remote parts of the home, or hard to reach areas where space is at a premium.

Non-programmable thermostat

Designed to take maximum advantage of the multi-stage functionality of the unit. This allows the unit to achieve maximum savings by only operating at the right range to match the current weather.

Unit air pad (plastic or foam)

The unit air pad creates a buffer between the unit and the home. This buffer prevents any vibration from the unit to be transmitted into the home which improves the already quiet operation of the unit.

Disposable pleated filter

This type of filter uses a pleated media to remove dust and other particles from the air stream. It is important to check these filters regularly and replace them as needed.

Electronic 24 volt air cleaner

This type of filter uses an electrically charged media to increase filtration performance. This improves indoor air quality by removing more particles from the airstream. This filter requires the occasional media replacement.