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A boiler is central to all process plants. Operational efficiency and profitability heavily rely on the best boilers. Besides, a top-quality boiler minimizes the fuel consumption of your factory. Hence, the proper boiler selection is critical for your industry. Now, how to select a boiler?

What is a boiler?

A boiler is a closed container that heats numerous fluids. Then, the heated or vaporized fluid exits the boiler to propel multiple processes. For instance, boilers help with water heating, central heating, boiler-based power generation, cooking, and sanitation.

What are the factors in selecting a boiler?

The best boilers have several specific traits. 

In short, five precise indicators guide you on how to select a boiler.

Competent boilers identify with the fuel type, the efficiency level, the combustion system, the dimensions of the installation location, and your requirements.

You must make a sound judgment on affordable boiler prices while estimating the running costs.

Now, let’s get straight to the specifications.

Fuel consumption

Boiler type rests on your fuel Selection. 

Multiple issues come here.

Quality fuel availability concerns moisture and ash percentage. Also, you need to consider the local and federal emission norms of the plant location. 

Strict emission regulations often prohibit or limit the use of fossil fuels. Harsh pollution control instruments require serious attention.

Besides, natural gas is a cheaper alternative to fossil fuel. In addition, gas is relatively more environmentally-friendly than oil. 

Recently, many people are all for renewable sources such as sun, wind power, etc.

The combustion system 

Atmospheric and air-tight are two combustion systems.

Open or “atmospheric” boilers suck the necessary oxygen for combustion from the room surroundings. So, the installation room must accommodate healthy ventilation. Open combustions pass their waste gasses through the chimney. 

Closed or air-tight boilers cannot use room air. They absorb air from the outside via a double-walled pipe (usually through the roof or wall). The same tube also casts out the waste gasses.

Costly closed models offer multiple advantages —

Boiler efficiency

A handy boiler saves on your energy costs apart from reducing carbon emissions. Low-temperature gas boilers and condensing boilers do the same as well. These expensive boilers are massively economic in the long run. 

As oil-run boilers, “Optimaz” and “Optimaz Elite” are low-temperature and condensation boilers.

Heat/steam load

You must assess the actual heat/steam load. Its evaluation varies across different industries and processes. Also, heat or latent heat fluctuates for the process and the process duration.

Moreover, assumption-based estimations result in inferior performance regarding product output,  cost of steam generated, and fuel consumption.

Installation location

Low-temperature and condensation boilers have two versions. In a tight space, we recommend wall boilers. 

They are compact, light, and noiseless. You can install those unobtrusively in the kitchen or bathroom. Contrarily, floor boilers are sturdier as well as bulkier.

Smart regulation system

The best boiler performance derives from an efficient regulatory framework. It must be a programmable thermostat, outdoor sensor, and thermostatic valve. These advanced features add greater value to your boiler.


Sometimes, consultants select the boiler capacity selection. They are process experts in setting up & running a particular process plant. Unfortunately, these advisors go short-sighted on boiler selection, performance, and steam generation rate.

Incorrect heat load could spiral your factory out of business. Sometimes, the compromised capacity of the boiler results from price constraints. Going stingy on the boiler is a wrong decision. It could potentially turn down the overall productivity & performance.


Before indenting for a process plant boiler, you must determine the right heat/steam load requirements for a particular process. Besides, you have to check out fuel availability and automation feasibility. Then, settle for the best boiler capacity for your unit.

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