With KTE’s unique technologies and professional manufacturing methods we developed throughout our history of over 120 years, we realized long-life time which significantly exceeds conventional Once-through boilers. Durability of WILLHEAT helps to reduce investment cost in long-term.
High durability of Once-through boilers
Round design for pressurized part

Steam water separator
with built-in deaerator

Water feeding to steam water separator

Annealing of pressurized part

Energy saving and lower environmental impact
WILLHEAT is equipped with “PID combustion control” and “Inverter control of draft fan and feed water pump” as standard, which contributes reducing fuel and electricity cost.
WILLHEAT can supply adequate amount of steam with the minimum amount of fuel and electricity under any steam load. It eliminates wasting energy compared to position-controlled boilers that are frequently turned on and off.
Reduction in fuel and electricity also contribute to reducing CO2 emissions.
Comparison of control specifiations
3-position control

Operation condition :
[Steam pressure] 0.7MPa
[Outdoor temperature] 35℃
[Feed water temperature] 15℃
PID control

Operation condition :
[Steam pressure] 0.7MPa
[Outdoor temperature] 35℃
[Feed water temperature] 15℃
High boiler efficiency
If a Fire (smoke) tube boiler is currently used and replaced with WILLHEAT offering boiler efficiency 99%, you can reduce fuel cost by around 10% and achieve better environmental performance such as reducing CO2 emissions.
Boiler efficiency (Estimated)

Operation condition :
[Steam pressure] 0.49MPa
[Outdoor temperature] 35℃
[Feed water temperature] 15℃
High efficiency by multi-unit boiler operation
If steam is supplied at 100% full load operation with Fire (smoke) tube boiler and is replaced with WILLHEAT, we deliver great benefits of fuel cost saving and reducing CO2 emissions.
At 100% full load operation with Fire (smoke) tube boiler, boiler efficiency tends to be around 88%. However, by multi-unit boiler operation with WILLHEAT, operation is possible at boiler efficiency more than 100%.
PID multi-unit control system

Multi-unit control system efficiency

Operation condition :
[Model] WF-3000GEX (NG fired) × 2 units
[Steam pressure] 0.49MPa
[Outdoor temperature] 35℃
[Feed water temperature] 15℃
High-quality steam
It is said that steam that does not contain moisture is high-quality steam, and the steam with much moisture is poor-quality steam. The quality of steam has great impact to fuel cost, or wear-out of secondary facilities.
Generally, steam from Once-through boiler contains a large amount of moisture and is not high quality. However, WILLHEAT can supply extremely high-quality steam whose dryness reaches 99.5% or more, at any operation load.
WILLHEAT will reduce your concern about fuel cost, CO2 emissions or wear-out of secondary facilities.

Structure of steam water separator

Centrifugal rotation is additionally applied to commonly used reversing type of steam water separator so that steam dryness has highly improved.
Efficient use of boiler room area by compact design
WILLHEAT delivers both compact design and high efficiency at the same time. WILLHEAT helps to have more space and use the boiler room area more efficiently for your business.

Special Option
The option which helps to reduce fuel cost and CO2 emissions is also available.
For customers who wish to automate adjustment of air-fuel ratio
Specification
WILLHEAT series | ||
---|---|---|
Equivalent evaporation | 1,500 to 2,000 (kg/h) | 2,500 to 3,000 (kg/h) |
Actual evaporation | 1,258 to 1,677 (kg/h) | 2,097 to 2,516 (kg/h) |
Maximum working pressure | 0.98 MPa | |
Boiler efficiency | 98% | 98%, 99% |
Fuel | Natural Gas |