Geothermal Accessories

We offer geothermal accessories to meet the needs of any residential or commercial building. Below are some of the most commonly used options.

Electronic Dynamic Filter

This filter is a high-efficiency electronic air cleaner with a Minimum Efficiency Reporting Value (MERV) equivalency rating of 13 (a typical fiberglass filter falls between one and four). It has disposable low static polarized media, and the media contains activated charcoal. It's available in the following sizes: 16" x 20" x 1" up to 28" x 34" x 1".

Electrostatic Filters

This filter is washable with three filtration layers for the highest air quality. It has self-charging media and has a lifetime warranty. It is available in the following sizes: 16" x 20" x 1" up to 38" x 36" x 1".

Flow Centers

The flow center is used to pump the water-based solution from the loop field to the unit(s) in the home. Enertech offers a variety of flow centers with features including double O-ring fittings or 1” NPT connections; foam insulated cabinet to stop condensation; fully assembled and leak tested; and a high impact polystyrene cabinet that will not rust.

Auxiliary Heaters

Residential Enertech Geothermal Systems come standard with auxiliary (backup) heaters. The auxiliary heaters we offer have an automatic high limit and auxiliary limit switched for over temperature protection to keep your home, building, and equipment safe.

EWC Zoning Dampers and Panels

Set your home or building up in zones so you can regulate the temperature based on where you spend the most time in the structure. This allows for ultimate comfort, as well as further cost-savings during operation. We offer a variety of zoning dampers and panels to meet the needs of any situation.

Multi-Position Hydronic Air-Handlers

Hydronic air-handlers and cased coils are used with water-to-water and air-to-water heat pumps to allow for both radiant and forced-air climate control by connecting to your ductwork. We manufacture our air handlers and cased coils to guarantee they are optimized to work with our other equipment lines and ensure you receive the highest quality system available.


Antifreeze is a critical part of your geothermal system. It works as a preventative measure in the system piping to ensure that the water does not freeze. Alphi-11, by Fernox, provides antifreeze, along with additional protection against corrosion and limescale.

Equipment Pads

Equipment pads help to provide a stable, level base for your geothermal system to sit upon. They also provide a level of sound proofing, helping to absorb the sound of the equipment running, to ensure quiet, carefree installations.


ERV’s, or energy recovery ventilators, are air exchangers that are connected to your HVAC system and improve your indoor air quality. They work to cycle out stale indoor air, with fresh outdoor air, while helping to regulate your home’s temperature. In addition to bringing in fresh air, they also work to trap other items such as pollutants and pollens.

Multi-aqua Fan Coils

These fan coils by Multiaqua are a great solution for providing forced air heating and cooling to smaller zones in a hydronic system. With a Multiaqua system, there is no refrigerant or ductwork needed. Instead, they utilize chilled and hot water produced by your geothermal system.


Enertech offers a wide range of thermostats to help fit your personal needs. Our most popular, the Sensi Touch Wi-Fi thermostat, is smart home compatible and allows you to control your temperature anytime, from anywhere. Other thermostat options include the Sensi Wi-Fi, programmable touch screens, and non-programmable thermostats.
Learn more about partnering with Enertech to experience how we provide energy-efficient products and services.