Güde GBT 80.1 Dehumidifier – 80 liters/day, 1300W, up to 160 m²
The GBT 80.1 dehumidifier is the high-end model in the Güde line, sized for construction sites and indoor environments from 50 to 160 m² that require rapid moisture removal with high reliability. Its capacity of 80 liters per day (compared to 50 liters for the GBT 50.1) allows for drying larger spaces without refilling the tank or with continuous permanent drainage.
The 1300W motor and 400 m³/h air flow ensure fast dehumidification even in very high humidity conditions (post-flood, post-intensive construction work). The adjustable hygrostat (10-95%) with automatic auto-stop allows the desired target humidity to be reached and operation to be switched off without supervision. The eco-friendly R290 refrigerant keeps energy consumption low despite the higher power.
Unlike the GBT 50.1 which includes an integrated tank, the GBT 80.1 is designed for continuous operation via a permanent drain hose (ideal for 24/7 construction sites without emptying interventions). The washable air filter requires minimal maintenance. Automatic frost protection (minimum temperature 5°C) ensures safety in cold climates. The weight of 39 kg remains manageable for one or two operators.
Who is the GBT 80.1 dehumidifier suitable for?
| Profile |
Suitable? |
Reason |
| Medium-large construction company (5-20 operators) |
Ideal |
80L/day capacity for 50-160 m² areas; 400 m³/h flow for rapid dehumidification; continuous drainage for unattended 24/7 operation |
| Company specializing in restoration / remediation |
Ideal |
Water damage in medium-large buildings; post-flooding; drying after plastering and stucco work on large areas |
| Property manager / extensive damage |
Adequate |
Rapid drying after extensive floods; proven effectiveness in large environments; low noise (58 dB) |
Not suitable for: Environments < 50 m² (oversized, expensive, consumes more than necessary); climates with temperature < 5°C (frost protection prevents operation); un sheltered outdoor areas (IP 22 not suitable for direct rain); short-cycle applications (4-5 hours): consider the more efficient GBT 50.1.
Technical Specifications
Capacity and Performance
| Parameter |
Value |
| Dehumidification capacity (per day) |
80 liters |
| Air flow |
400 m³/h |
| Application area |
50–160 m² |
| Drainage |
Permanent drain hose (length not declared by manufacturer) |
| Relative humidity range |
10–95% |
| Hygrostat |
Adjustable, auto-stop at target value |
| Frost protection |
Automatic, minimum temperature 5°C |
| Maximum operating temperature |
35°C |
Motor and Power Supply
| Parameter |
Value |
| Motor type |
Single-phase asynchronous |
| Rated power |
1300 W |
| Supply voltage |
220–240 V |
| Frequency |
50 Hz |
| Protection class |
I |
| Waterproof protection |
IP 22 (water jets < 60°) |
| Refrigerant |
R290 (eco-friendly, low GWP) |
| Noise |
58 dB(A) LWA |
Dimensions, Weight and Structure
| Parameter |
Value |
| Length |
550 mm |
| Width |
570 mm |
| Height |
940 mm |
| Net weight |
39 kg |
| Gross weight (packaging) |
45 kg |
| Transport handles |
Integrated |
| Air filter |
Washable |
Compliance and Safety
| Parameter |
Value |
| CE marking |
Complies with Machinery Directive 2006/42/EC |
| Refrigerant emission standard |
Regulation (EU) 517/2014 (eco-friendly R290 refrigerant) |
| Country of manufacture |
Germany (Güde) |
| Warranty |
According to Güde terms |
Standard Equipment
- Güde GBT 80.1 dehumidifier fully assembled
- Drain hose for continuous drainage (length not specified by manufacturer)
- Washable air filter
- Instruction and safety manual (Italian)
- 230V power cable (standard length)
Optional and Compatible Accessories
- Drain extension hose (5–15 m) for remote drainage
- Replacement air filters (set of 2–3 pieces for intensive use)
- Auxiliary drainage pump (if needed for elevation)
- Additional connection hoses (standard diameters)
Frequently Asked Questions
How long does the GBT 80.1 take to dry a large room like 150 m²?
It depends on the initial humidity level. For a 150 m² room with 85% relative humidity, the GBT 80.1 reduces the value to 55-60% in 8-12 hours of continuous operation. The 80-liter per day capacity and 400 m³/h air flow ensure rapid dehumidification compared to the GBT 50.1.
What is the difference between GBT 80.1 and GBT 50.1?
The GBT 80.1 offers superior capacity (80 vs 50 L/day), higher motor power (1300W vs 900W), higher air flow (400 vs 300 m³/h), and a larger application area (50-160 vs 50-120 m²). The GBT 80.1 is designed for permanent drainage (no tank); the GBT 50.1 includes a 7L tank. Choose the GBT 80.1 for large construction sites with continuous operation; the GBT 50.1 for smaller environments and shorter cycles.
Can I connect the GBT 80.1 dehumidifier to a sewage drain for 24/7 operation?
Yes, this is the main application of the GBT 80.1. The integrated drain hose (length not declared by the manufacturer) allows direct connection to an external drain, a sewage system, or a drainage area. The auto-stop function stops operation when the set humidity is reached, reducing consumption. Ideal for unattended construction sites.
What is the approximate energy consumption of the GBT 80.1?
The GBT 80.1 draws a nominal 1300W. In continuous operation (24 hours), it consumes approximately 31.2 kWh/day. With auto-stop (activation 14-16 hours/day until target humidity is reached), average consumption is reduced to 18-25 kWh/day. Eco-friendly R290 refrigerant maintains energy efficiency despite higher power. Check local energy costs for an estimated actual consumption.
Is the noise (58 dB) acceptable for a construction site with hourly restrictions?
58 dB is comparable to the noise of a moderate conversation. Acceptable during daytime work (7:00-19:00). If the construction site has night-time restrictions, use the auto-stop: once the target humidity is reached, the dehumidifier automatically switches off. For continuous night-time operation, consider professional models with additional soundproofing.
How do I maintain the GBT 80.1?
Clean the air filter at least once a week during intensive use. Periodically inspect the drain hose for any obstructions (sediment, debris). Check the frost protection (it remains automatically active at temp. < 5°C). Ensure the power cable is in good condition. It does not require frequent motor maintenance like gasoline-powered appliances.
