KENOBoilte Keno gas air heater (heater unit) for greenhouses
Boilte Keno – gas air heater (heater unit) for greenhouses
Boilte Keno is a specialized gas air heater (heater unit) for greenhouses, designed for commercial greenhouse operations where a guaranteed microclimate and maximum yield depend directly on stable and economical heating. Keno provides fast, efficient and self-contained air heating in greenhouses, hothouses, winter gardens and other agricultural facilities.
From every side
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Why choose KENO
Sealed combustion chamber
100% stream separation – combustion products never enter the greenhouse.
Weather-compensated controls
Fuel savings up to 30% and a stable microclimate.
Lifetime warranty
On the heat exchanger. With no time limit.
Modulating burner (30–100%)
Smooth output control for precise temperature.
Frost protection
Automatic start-up when the temperature drops.
Easy servicing
Easy access to the key components.
Construction
and materials
Sealed, closed-type combustion chamber (100% stream separation):
Service & warranty
Keno air heaters come with the manufacturer's lifetime warranty on the heat exchanger, provided the installation and operating rules are observed.
Every unit is supplied with a complete package of technical documentation: data sheet, installation and operating manual, test reports and certificates of conformity.
Serial model
parameters
For non-standard requirements, custom builds to the customer's drawings are available.
The price list goes to 1000 kW. Output up to 1500 kW follows the specification and is supplied to order: contact the manager.
*Lifetime warranty applies during the declared design service life of the boiler and is subject to BOILTE Warranty Terms.
Heavy, crude and waste fuels are subject to fuel-specific warranty terms.
Warranty terms →Specs
and documents
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| Model | Power, kW | Material | Mass, kg |
|---|---|---|---|
| Keno 50 | 50 | 09G2S | 900 |
| Keno 75 | 75 | 09G2S | 930 |
| Keno 100 | 100 | 09G2S | 950 |
| Keno 150 | 150 | 09G2S | 980 |
| Keno 200 | 200 | 09G2S | 1090 |
| Keno 250 | 250 | 09G2S | 1200 |
| Keno 300 | 300 | 09G2S | 1300 |
| Keno 350 | 350 | 09G2S | 1300 |
| Keno 400 | 400 | 09G2S | 1400 |
| Keno 500 | 500 | 09G2S | 1580 |
| Keno 600 | 600 | 09G2S | 1700 |
| Keno 800 | 800 | 09G2S | 1700 |
| Keno 1000 | 1,000 | 09G2S | 1700 |
| Keno 50 | 50 | AISI 304 | 900 |
| Keno 75 | 75 | AISI 304 | 930 |
| Keno 100 | 100 | AISI 304 | 950 |
| Keno 150 | 150 | AISI 304 | 980 |
| Keno 200 | 200 | AISI 304 | 1090 |
| Keno 250 | 250 | AISI 304 | 1200 |
| Keno 300 | 300 | AISI 304 | 1300 |
| Keno 350 | 350 | AISI 304 | 1300 |
| Keno 400 | 400 | AISI 304 | 1400 |
| Keno 500 | 500 | AISI 304 | 1580 |
| Keno 600 | 600 | AISI 304 | 1700 |
| Keno 800 | 800 | AISI 304 | 1700 |
| Keno 1000 | 1,000 | AISI 304 | 1700 |
The price list goes to 1000 kW. Output up to 1500 kW follows the specification and is supplied to order: contact the manager.
Engineering documentation
Documents still in preparation can be requested: the enquiry reaches our engineers with the series and the required document already filled in.
Where it works KENO
- 01Drying
- 02Food
Frequently asked
Why is a sealed combustion chamber important for greenhouses?
Keno has a sealed, closed-type combustion chamber – combustion air is drawn from outside and the combustion products are fully removed through the chimney. Carbon monoxide, nitrogen oxides and other harmful substances never enter the greenhouse, which is critically important for the health of plants and people. Plants do not suffer from carbon monoxide, and staff work in a safe environment.
How do the weather-compensated controls save fuel?
The controller receives data from an outdoor temperature sensor and decides on its own how much output to deliver. When it gets colder, the system increases heating in advance, without waiting for the temperature inside the greenhouse to drop. This eliminates heating lag and maintains a stable microclimate. Fuel savings reach 25–30% compared with manual control or a simple thermostat.
What warranty is provided?
A lifetime warranty on the heat exchanger, provided the installation and operating rules are observed.
Can Keno be installed in a greenhouse with high humidity?
Yes, the Keno design is rated for operation in the high-humidity conditions typical of greenhouses. All electrical components have the appropriate protection rating.
How do I request a calculation and find out the price?
Submit a request in the form below. Within 1 business day an engineer will contact you, clarify the greenhouse parameters (area, height, type of crops, climate zone) and prepare a commercial proposal.
