Energy-Efficient Modules for Clean Air &
Precise Climate Control
Upgrade your ventilation setup with GHT’s high-performance modules. GHT Solutions specializes in manufacturing the essential system components required to achieve optimal indoor climate without costly energy consumption. Our modules integrate seamlessly with any HRV/ERV unit, guaranteeing superior air purity, stable temperatures, and energy savings for residential and commercial projects.
![]() | 190 times more efficient than electrical pre-heating |
BEYOND ENERGY SAVINGS: THE GHT ADVANTAGE
While standard HRV/ERV systems struggle in extreme temperatures, the GHT Geothermal Pre-conditioning module acts as a "force multiplier" for your ventilation—protecting your building's physics and delivering unmatched indoor climate stability.
Building Risks Avoided
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Winter Defrost Imbalance Prevents negative pressure cycles during standard defrost modes, which draw freezing air through micro-cracks and compromise building integrity.
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Ductwork Condensation & Mold Strips excess moisture from humid summer air, physically stopping mold spores from developing inside your ventilation ducts.
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Summer Overheating (Fake Bypass) Unlike a standard HRV bypass that blows hot +30°C (+86°F) outdoor air directly indoors, GHT actively cools the air first.
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Peak Electricity Spikes Completely removes the reliance on energy-hungry electric pre-heaters (PTC/TEN) during sub-zero winter days.
Premium Comfort Gained
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True "Free Cooling" Utilizes the earth's natural thermal inertia to cool incoming summer air, costing only the minimal power of a small circulation pump.
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Active Dehumidification Lowers absolute humidity to create a crisp, highly comfortable indoor climate, eliminating the "stuffy" and muggy summer feeling.
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Maximized HRV/ERV Lifespan Keeps your core ventilation unit operating in its optimal, safe temperature zone year-round, extending equipment longevity and efficiency (COP).
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100% Guaranteed Air Balance Delivers continuous, uninterrupted, and perfectly balanced fresh air 365 days a year, regardless of extreme outdoor weather events.
How GHT Pre-Conditioning Works
Forget inefficient electric pre-heaters and fake summer bypasses. See how harnessing the earth's stable temperature guarantees 100% continuous air balance and true free cooling.
Nature’s Energy, Engineered.

Stop fighting humidity with expensive electricity. GHT uses sable 12°C (54°F) ground energy to passively cool and dehumidify your air.


100% Frost protection. Even at -22°C ( -8°F ) and beyond, GHT delivers 0°C (32°F) air to your ventilation unit without electric heaters.

See the Technology in Motion.
The GHT Solution is engineered to address the most critical challenges of modern ventilation. Traditionally, HVAC systems struggle to pre-condition air without massive energy spikes. Our technology utilizes the stable temperature of the earth to passively pre-treat incoming air—delivering it to your unit at an ideal range.
Essential Solutions to Upgrade Your Ventilation System Performance:
Premium Air Filtration: High-performance Filter Boxes ensure clean supply air, effectively protecting both users and your primary ventilation equipment from pollutants.
Geothermal Pre-Conditioning: Our Geothermal Pre-Heaters and Coolers harness the earth’s natural energy for significant energy savings and vital protection of heat exchangers from freezing.
In-Duct Climate Control: We offer a flexible, integrated solution for precise temperature maintenance, Inline Duct Coolers and Warm Water Post Heaters ensuring stable comfort
Choose GHT Solutions — trusted in over 1,200 successful installations, delivering energy savings and outstanding air quality for your home or business. Our customers have already saved over 5.7 million kWh of energy—equal to the annual electricity use of more than 1,200 European homes—and prevented over 3,700 tons of CO₂ emissions. With GHT solutions, our customers have prevented over 3,700 tons of CO₂ emissions—equivalent to the annual carbon absorption of more than 176,000 trees or 117 hectares (1,17 km²) of forest.
Explore our solutions and contact us to find the best option for your needs!
1200+
Successful installations
3 706 560+
kg CO2 reduced
5 702 400+
kWh consumed less
12+
Years in the market
Our Specialized Solutions: Filtration, Geothermal Pre-Conditioning, and Duct Cooling
Our high-performance components are engineered to guarantee maximum energy savings and healthy air in any facility. Each module provides a vital function—from ensuring air purity (filtration) to effective temperature control, utilizing geothermal and low-energy solutions. Explore our specialized product range below to find the ideal solution for enhancing the performance of your ventilation project.
PureFlow 200
EPP Filter Box for Ventilation Systems – Advanced Air Filtration for Every Space.
AirHC1000
Advanced
Warm Water Post Heater /Cooler. Maximum air flow up to 1000 m³/h. Insulated EPP housing

“G-2000/G-4000/G-6000/G-8000” series
Maximum air flow up to 1000 m³/h. The complete unit (heat exchanger with “A” class circulation pumps and safety unit in insulated EPP housing)
At GHT, we are dedicated to providing innovative and energy-efficient solutions for ventilation and air quality improvement. Our products are designed with precision, sustainability, and performance in mind to meet the needs of both residential and commercial applications. In our range, you will find a comprehensive selection of our products, detailed technical specifications, and transparent pricing to help you make informed decisions. From top-tier pre-heater/cooler for HRV/ERVs to high-performance filter boxes, every product reflects our commitment to quality and reliability.
We invite you to explore our offerings and discover how GHT can enhance your indoor air quality while promoting energy efficiency.
Thank you for choosing GHT Solutions – where innovation meets sustainability.

