Constant Humidity Controller - Gas Burner
Overview
Since the development of the first Harvest Constant Humidity Controller (CHC) in 1979, Harvest Installations has been supplying UK and International farmers with guaranteed drying conditions, 24hrs a day, every day. The Constant Humidity Controller (CHC) is an LPG powered gas burner that provides accurate modulated control over the heat for your drying process.
The CHC system has a proven record of accuracy, efficiency and economy with thousands of units in use on all combinable crops and onions across thousands of stores nationwide.
With a range of sizes from 200,000 to 4,000,000 BTU/hr all using the same plate type burner head, independent burner fan and up to date electronics and controls, they have proved themselves for 40 years.
Features of Our Gas Burner
Airflow Matters
Fan performance is key to the efficiency, low energy use, and quiet operation of our CHC units. The fans are specifically chosen to match each model for these purposes.
Efficient Burn
Our custom-designed gas burner head delivers high output in a compact size, ensuring efficient fuel use.
Accuracy Is Everything
The easy-to-use control system adjusts 7 levels of heat output to manage humidity or temperature, validated by independent testing agencies.
British Standards
All our equipment meets current regulations, and each CHC unit is CE marked. Every burner is tested at the factory, ensuring performance and safety from the beginning.
High Capacity
Onion storage and conditioning have led to the creation of our high capacity burners, commonly set up in pairs or triples to meet the high airflow needs.
Install Them Right
Our CHC units can be supplied on various standard support frames or a custom build for optimal positioning on larger installations.
Specification
| MAX. HEAT OUTPUT REQUIRED | MAX AIRFLOW IN C.F.M FOR GUARANTEED DRYING | MAX AIRFLOW IN C.F.M TO GIVE 30° LIFT | ||
|---|---|---|---|---|
| MODEL | BTU/HR | KW | ||
| CHC20S | 200,000 | 58.6 | 14,000 | 3900 |
| CHC30S | 300,000 | 87.9 | 21,000 | 5860 |
| CHC35S | 350,000 | 102.5 | 24,500 | 6830 |
| CHC45S | 450,000 | 131.8 | 31,500 | 8790 |
| CHC60S | 600,000 | 175.8 | 42,000 | 11720 |
| CHC75S | 750,000 | 219.7 | 52,500 | 14660 |
| CHC100S | 1,000,000 | 293 | 70,000 | 19530 |
| CHC150S | 1,500,000 | 439.5 | 105,000 | 29320 |
| CHC200S | 2,000,000 | 586 | 140,000 | 39060 |
| CHC225S | 2,250,000 | 659.2 | 157,500 | 43940 |
| CHC250S | 2,500,000 | 732.4 | 175,000 | 48820 |
| CHC300S | 3,000,000 | 879 | 210,000 | 58590 |
| CHC350S | 3,500,000 | 1025.5 | 245,000 | 68350 |
| CHC400S | 4,000,000 | 1172 | 280,000 | 78130 |