Condensing
The basic principles of condensing explained, and how condensing boilers work.
How it works: CondensingEquipment family
Boilers and steam generators
IVAR and Robur hot water, superheated water and thermal oil boilers and steam generators, from 34 kW to over 10 MW.
- Heating capacity
- 34 – 10.560 kW
- Ranges
- 10
- Manufacturers
- IVAR and Robur
Technology
What are boilers and steam generators?
This family brings together industrial boilers that produce heat by combustion for buildings and industry: hot water and condensing boilers, superheated water generators, thermal oil boilers for processes up to 250 ºC, and steam boilers or industrial steam generators up to 14.7 bar.
IVAR industrial boilers run on natural gas, LPG or diesel oil, and the SupeRAC also on biogas. They range from 81 to 10,560 kW, and most ranges have three flue gas passes and low NOx emissions. The Robur AY Condensing is an outdoor gas condensing boiler from 34 to 100 kW that complements the absorption units.
Ranges
boilers and steam generators ranges
10 ranges from IVAR and Robur. Nominal data from the manufacturer's technical data sheets.
IVAR
IVAR SupeRAC
6 bar monobloc hot water boilers with flame reversal chamber and high efficiency
- Heating capacity
- 94 – 4,150 kW
- Energy
- Natural gas, LPG, diesel oil, biogas
- Efficiency
- 91 - 93%
IVAR
IVAR SupeRAC 2F
6 bar hot water boilers with twin stacked furnaces for wide modulation and redundancy
- Heating capacity
- 186 – 814 kW
- Energy
- Natural gas, LPG, diesel oil, biogas
- Efficiency
- 91 - 93%
IVAR
IVAR SupeRAC AR
High-efficiency hot water boilers with 3 flue gas passes and low NOx
- Heating capacity
- 81 – 3,610 kW
- Energy
- Natural gas, LPG, diesel oil, biogas
- Efficiency
- 96.8 to 98.0%
IVAR
IVAR ECOCOND
Very high-efficiency AISI 316L stainless steel condensing boilers for low temperatures
- Heating capacity
- 110 – 641 kW
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 95.2 to 98.1%
IVAR
IVAR TRINOX
Large industrial boilers with 3 true flue gas passes and low NOx
- Heating capacity
- 1,165 – 10,560 kW
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 94 %
IVAR
IVAR ASB / ASA
Superheated water generator with 3 flue gas passes
- Heating capacity
- 140 – 2,907 kW
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 90 %
IVAR
IVAR ODE/C
Thermal oil boilers for high-temperature processes
- Heating capacity
- 116 – 5,815 kW
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 87 %
IVAR
IVAR BHP
Monobloc steam generators
- Heating capacity
- 97 – 3,463 kW (140 – 5,000 kg/h)
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 90.0 to 96.5%
IVAR
IVAR SB/V
Large-capacity industrial steam generators with a large steam volume
- Heating capacity
- 1,385 – 6,923 kW (2,000 – 10,000 kg/h)
- Energy
- Natural gas, LPG, diesel oil
- Efficiency
- 91 %
Robur
Robur AY Condensing
Outdoor gas condensing boiler
- Heating capacity
- 34 – 100 kW
- Energy
- Natural gas or LPG
- Efficiency
- Efficiency 98.2–98.5 % (HW80/60), up to 108.8 % at part load
- Energy class
- A
Comparison
boilers and steam generators comparison
Nominal values from the manufacturer's technical data sheets.
| Range | Manufacturer | Heating capacity | Energy | Efficiency | Energy class |
|---|---|---|---|---|---|
| IVAR SupeRAC | IVAR | 94 – 4,150 kW | Natural gas, LPG, diesel oil, biogas | 91 - 93% | — |
| IVAR SupeRAC 2F | IVAR | 186 – 814 kW | Natural gas, LPG, diesel oil, biogas | 91 - 93% | — |
| IVAR SupeRAC AR | IVAR | 81 – 3,610 kW | Natural gas, LPG, diesel oil, biogas | 96.8 to 98.0% | — |
| IVAR ECOCOND | IVAR | 110 – 641 kW | Natural gas, LPG, diesel oil | 95.2 to 98.1% | — |
| IVAR TRINOX | IVAR | 1,165 – 10,560 kW | Natural gas, LPG, diesel oil | 94 % | — |
| IVAR ASB / ASA | IVAR | 140 – 2,907 kW | Natural gas, LPG, diesel oil | 90 % | — |
| IVAR ODE/C | IVAR | 116 – 5,815 kW | Natural gas, LPG, diesel oil | 87 % | — |
| IVAR BHP | IVAR | 97 – 3,463 kW (140 – 5,000 kg/h) | Natural gas, LPG, diesel oil | 90.0 to 96.5% | — |
| IVAR SB/V | IVAR | 1,385 – 6,923 kW (2,000 – 10,000 kg/h) | Natural gas, LPG, diesel oil | 91 % | — |
| Robur AY Condensing | Robur | 34 – 100 kW | Natural gas or LPG | Efficiency 98.2–98.5 % (HW80/60), up to 108.8 % at part load | A |
The rating conditions for each capacity are given on the range's page.
Selection criteria
When to choose boilers and steam generators
- Industrial processes that need steam, superheated water or thermal oil
- Replacing or extending large boiler rooms
- Installations with biogas available as fuel
- Support and back-up in installations with Robur absorption heat pumps
Downloads
Catalogues and data sheets
Which range suits your project?
Tell us the capacity, the services you need and the energy available. We'll recommend the configuration and send you a proposal.