Water Systems

MPN Boilers can help you create a water management solution that will meet your exact requirements and minimize your expenses. We work with a variety of equipment manufacturers to select the best product for your needs and then help you manage the installation.  After the installation, we can provide you prompt delivery of parts and service to keep your equipment running in the best possible condition and efficiency.

Water systems can include feedwater, deaerators, surge tanks, softeners, blowdown separators, blowdown heat recovery, chemical feed and boiler feed capabilities.



A deaerator is a device that is widely used for the removal of oxygen and other dissolved gases from the feedwater to steam-generating boilers. In particular, dissolved oxygen in boiler feedwaters will cause serious corrosion damage in steam systems by attaching to the walls of metal piping and other metallic equipment and forming oxides (rust). Dissolved carbon dioxide combines with water to form carbonic acid that causes further corrosion. Most deaerators are designed to remove oxygen down to levels of 7 ppb by weight (0.005 cm³/L) or less as well as essentially eliminating carbon dioxide.

There are two basic types of deaerators, the tray-type and the spray-type:


tray type deaeratorThe tray-type (also called the cascade-type) includes a vertical domed deaeration section mounted on top of a horizontal cylindrical vessel which serves as the deaerated boiler feedwater storage tank. This unit can handle severe load swings, varying inlet water temperatures and changing operating pressures while maintaining deaeration efficiency.

In the tray type unit, water is sprayed into a pressurized steam atmosphere (first stage deaeration) in order to preheat and partially deaerate the incoming water. The water then cascades down through a series of stainless steel trays, while the countercurrent steam flow scrubs the remaining traces of oxygen out of the water. The steam acts as a carrier gas, to expel the removed oxygen out the vent. The deaerated water then falls into the horizontal storage section and is ready for use by the boiler, at saturated temperature and with oxygen levels at .005 cc/liter.

spray type deaeratorThe spray-type consists only of a horizontal (or vertical) cylindrical vessel which serves as both the deaeration section and the boiler feedwater storage tank. It is best used for fairly stable loads and constant water inlet temperatures. It is the most economically priced unit in the 7,000 #/hr and higher flow range.

In the spray type unit, water is sprayed into a pressurized steam atmosphere (first stage deaeration) in order to preheat and partially deaerate the incoming water. The water is then directed to the scrubber (second stage deaeration) where the water is violently scrubbed to remove the final traces of oxygen. The steam acts as a carrier gas, to expel the removed oxygen out the vent. The deaerated water is then ready for use by the boiler, at saturated temperature and with oxygen levels at .005 cc/liter.


surge tanksA surge tank is a storage reservoir at the downstream end of a closed feeder to absorb sudden rises of pressure, as well as to quickly provide extra water during a brief drop in pressure.  Because condensate return volume is largely unpredictable, a surge tank provides a means to collect intermittent condensate returns and supply water at a relatively constant volume, while limiting discharge to drain.

A surge/transfer system is an important component in a steam system when there is a high volume of condensate returns, or the returns come back in “slugs”. A surge tank will allow this condensate to be collected at varying rates, and transfer the condensate/make-up mix to the deaerator under steady state conditions.


water softenerWater softener is a unit that is used to soften water, by removing the minerals that cause the water to be hard preventing scale build up on heat transfer surfaces while maintaining peak boiler efficiency.  Removing hardness also reduces the need for expensive chemical treatment to control scale.

When water is hard, it can clog pipes and soap will dissolve in it less easily. Water softening can prevent these negative effects. Due to this build-up, pipes are blocked and the efficiency of hot boilers and tanks is reduced. This increases the cost of domestic water heating by about fifteen to twenty percent.

Water softening means expanding the life span of boilers and the life span of pipelines.  A water softener is recommended whenever raw hardness exceeds 1 ppm.

Water softeners are available for boilers of all sizes, including multiple boiler applications, steam or hot water.



chemical feedA well-engineered chemical feed system is an integral part of an effective water treatment program. If a feed system is not designed properly, chemical control will not meet specifications, program results may be inadequate, and operating costs will probably be excessive.

A significant investment in a chemical feed system can often be justified when compared with the high cost of these control problems. When a chemical feed system is not properly engineered, chemical levels are often above or below program specifications. The use of a proper feed system can prevent this situation.

Automatic systems are available for single- or multiple-boiler installations.


boiler feed systemA boiler feedwater pump used to pump feedwater into a steam boiler. The water may be freshly supplied or returning condensate produced as a result of the condensation of the steam produced by the boiler. These pumps are normally high pressure units that take suction from a condensate return system and can be of the centrifugal pump type or positive displacement type.

Boiler feed systems help maintain peak efficiency and prolong the life of boilers where investment in a deaerator cannot be justified. Consisting of one or more feed pumps and a corrosion resistant receiver tank, the system automatically supplements condensate with makeup water to replace system losses.  Pumps are available in centrifugal or regenerative turbine types and vertical or horizontal configurations to fit your application.

For your “non-standard” requirements, let BFS customize a system “tailor made” for your application. Customizing includes tanks of any size, material or configuration, electric controls with any level of sophistication and pumps of any style or manufacturer.

Venting Solutions

venting solutionsVenting, proper sizing and routing of a boilers flue system is crucial to the overall performance of the boiler, domestic hot water heater or emergency generator. With condensing boilers the venting is especially important as the flue gas temperatures often times are not hot enough to rise naturally which can pose operational as well as safety concerns.

Our prefabricated exhaust systems are designed using the latest technology and engineering while also offering quick and easy installation, saving you time and money.

MPN has venting material available from both Cleaver Brooks Exhaust Solutions as well as Selkirk with and without insulation for category I,II,III and IV appliances with multiple sizes up to 48” I.D.



Positive Pressure Exhaust Systems are ideal for use in venting a wide variety of applications including:

  • Non-condensing boilers and other building heating equipment.
  • generator, Engine and Microturbine Exhausts
  • Pizza Ovens
  • Coffee Roasters


selkirk ps ips exhaust systemSelkirk PS / IPS Exhaust Systems

Selkirk Model PS and IPS are modular, prefabricated piping systems which embody flanged joints designed for both quick assembly and pressure-sealing capabilities.  They offer a combination of insulated piping components as well as the structural accessories needed for support and attachment to building structures.  PS and IPS are double-wall UL listed design and factory engineered and built.



cleaver brooks cbi exhause systemCleaver Brooks CBI Exhaust Systems

Cleaver-Brooks installation-ready boiler exhaust systems are more than the sum of their interchangeable male and female parts.  They are complete solutions that provide the latest technology to enhance the performance of your boiler.  Our CBI insulated exhaust systems are perfect for venting gases from liquid, oil, or solid fuel-fire boilers.  Ranging from 6 to 48 in diameter, they are ideal for industrial and commercial applications.  UL/ULc listed.




Special Gas Vents offer superior resistance to condensate by-product corrosion and are custom suited to the following applications:

  • ANSI Category I, II, III & IV vent applications
  • Negative, neutral, or positive pressure vent systems
  • Condensing or near condensing gas vent systems


heatfab saf-t vent ci plusHeatfab / Saf-T Vent CI Plus

Engineers have specified Saf-T Vent for more than 15 years.  Saf-T Vent was the first venting system using AL29-4C superferritic stainless steel to Test and List to UL1738, ULC 5636 (Special Gas Vent Systems.)  The combination of high quality products and our engineering support ensures your installation has high performance quality from appliance adapter to termination.





cbhlaCleaver Brooks Exhaust Solutions CBHLA

Condensing high-efficiency boilers require cutting-edge technology specially engineered for the highest efficiency boiler.  Our special gas vents provide flue venting for industrial, institutional and commercial applications and are well suited for condensing boiler applications.  Stainless steel as per UL1738.  UL/ULC listed.







Single wall negative, neutral or positive pressure capable, stainless steel pre-fabricated piping system intended for use in masonry chimneys to maximize safety and efficiency.

selkirk model gSelkirk G

Model G is a rigid, stainless steel, single wall modular venting system.  As a chimney liner, Selkirk Model G is designed for use in masonry or factory built chimneys to provide the flue gas venting of solid liquid and or gas fired appliances.  Tested and listed to UL-1777 and CAN/ ULC-S635.






cleaver brooks exhause solutionsCleaver Brooks Exhaust Solutions CBI / CBH

Masonry chimneys require special products to maximize safety and efficiency.  Cleaver-Brooks offers an entire line of products designed specifically for these types of chimneys.  These systems are perfect for venting Category 1 gases and oil-fired applicance equipped with draft hoods or type B gas vents.  UL/ULc listed.








Grease duct products are designed for exhaust of combustion gases under positive, negative, or neutral pressure.  Performance     and energy efficiency are vastly improved with round grease duct designs.  Rounds systems have many advantages over rectangular systems including:

  • Less flow resistance
  • Reduced risk of fire
  • Significantly easier to clean than rectangular systems

selkirk zero clearSelkirk Zero Clear

Selkirk Zero Clear grease duct is an innovative factory built kitchen grease duct.  With a zero clearance rating, our integrated chase construction sets the standard for design.  Available in 3” & 4” wall thickness, 2 hour fire rating and a limited lifetime warranty. UL/ULc listed.






grease ductCleaver Brooks Grease Duct Products

Cleaver Brooks Model CBG systems are designed for exhaust of combustion gases under positive, negative or neutral pressure, emanating from a variety of appliances.  Our grease duct products use the same male/female design and plasma welding construction as our larger systems, ensuring fast delivery and efficient installations. UL/ULc listed.



Fuel Systems

MPN Boilers can help you design, source, install and maintain your complete fuel storage and fuel forwarding systems.  These systems can include above ground and underground steel & fiberglass tanks, standard & customer pump sets, tank gauges, fill boxes, leak detection, filtration systems, fuel oil accessories.

These systems can be used for storing and forwarding fuel oil and diesel oil or configured to support a variety of fuel feeds for boiler systems.  Other fuel management systems include: scrubbers, dearators, surge management, flash tanks, and blowdown systems.

Contact MPN Boilers today and let up help you design the best fuel system to meet your needs.


Boiler Controls

boiler controlsBoiler controls expert Miller Proctor Nickolas, Inc. offers a wide range of electronic hydronic, steam or hybrid system controls to strike the best balance between performance and cost, depending on your needs. The controls can be as simple as managing room temperature via a simple electronic boiler control to as sophisticated as total system communication and complete building automation and integration. Outdoor reset sensors are one key element in our hydronic control systems, maximizing hydronic system efficiency and performance by adjusting the supply water temperature based on outdoor sensor feedback. This control strategy can be implemented on both hydronic as well as hybrid installations depending on the type of boiler chosen as well as the operating temperature.

MPN Boilers can help you increase efficiency and decrease fuel costs and emissions with selecting the correct control systems to get the most out of your boiler.  With MPN Boilers’ electronic boiler controls for your hydronic heating system, you can manage its performance and keep it operating at optimum levels. MPN Boilers will work with you to help select the ideal hydronic controls for your system's specific requirements.

Let us assist you in finding the best choice for your boiler room:


Cleaver-Brooks ControlsFully designed and optimized to work with our Cleaver-Brooks systems to help you get the most efficient and money-saving performance out of your boiler room. Virtually any system can benefit from the addition of a control.

The CB Master Panel is the central interface between each individual boiler’s control system and other boiler room equipment to external remote monitoring or building automation systems.

The Hawk is a complete boiler room solution. It not only integrates the boiler/burner, heat recovery and feedwater systems, but provides complete boiler room data to remote communication systems such as building automation systems, SCADA packages and other remote monitoring systems. While integrated, the combustion and burner management are maintained as separate devices to meet NFPA85 and other safety codes. Because the Hawk comes preprogrammed for boiler/burner applications, commissioning your boiler system can save you time in getting your customer online.



Raypak Controls

Raypak’s array of temperature controllers offers such state-of-the-art features as: sequence-control of up to 16 boilers; PID technology (see below); optimized approach to outdoor reset; Building Management System interfacing; modulation or stage-firing control; and other energy-saving functions. Unlike off-the-shelf controllers, Raypak’s four controller models have been specially designed to maximize the performance of its leading-edge boiler systems.

Raypak controllers feature state-of-the-art PID technology, an application of Proportional, Integral and Derivative functions in varying algorithms to optimize system performance. Other controllers on the market either do not utilize PID technology or use only the Proportional (P) function (the component that controls output in proportion to how far the monitored point is from the target temperature). Raypak’s controller series also makes use of the Integral (I) function which factors in the time it takes to reach the target temperature and enhances the proportional response accordingly. Add to this the Derivative (D) function which monitors how quickly the monitored point is approaching or drifting away from the target temperature. With all three functions, a properly designed PID-based control achieves set point quickly and levels off at the target temperature with minimal over- or under-shooting. The result is maximum system efficiency and performance.

Heat Recovery

With heat recovery systems, your company can reduce energy costs and environmental impact by recovering waste heat or steam and using it for other system applications. The recovered heat and steam can be recycled to be used as-is, or used to heat new feedwater.  The result is saving both fuel and money. There are two different approaches to heat recovery.


MPN Boilers can help you create an integrated design solution that will meet your exact requirements and minimize your expenses. We work with a variety of equipment manufacturers to select the best product for your needs and then help you manage the installation.  After the installation, we can provide you prompt delivery of parts and service to keep your equipment running in the best possible condition and efficiency.



Economizers are designed to reduce fuel use and costs by recovering heat from flue gases, which would otherwise be wasted, to preheat boiler feedwater. Cleaver-Brooks economizers are easily integrated to fit your boiler system, and each is built to our high standards. Three model configurations offer design flexibility to meet any application.can be utilized up to 2,200 HP for capturing the waste heat and preheating boiler feedwater, makeup water heating, hot water boilers and portable and process water applications.  Economizers can be used in both condensing & non-condensing applications.

The Cleaver-Brooks CRE rectangular non-condensing economizer can be utilized on boilers up to 2,200 HP for boiler feedwater, make-up water, hot water or process applications. Multiple size options are available to optimize space constraints while maximizing heat recovery.

The Cleaver-Brooks CCE cylindrical non-condensing economizer can be utilized on boilers up to 250 HP for boiler feedwater, makeup water, hot water, or process water applications. Compact/ lightweight design fits space constraints while maximizing heat recovery.

The Cleaver-Brooks C2X 2-stage condensing economizer captures heat through both a traditional stack economizer section and a condensing section. It can be utilized on boilers up to 2,200 HP. The lower section recovers energy by preheating boiler feedwater. The upper section preheats cool liquid streams, such as make-up water, process water or hot water preheating.


Blowdown Heat Recovery


Blowdown heat recoveryContinuous boiler surface blowdown heat recovery (BDHR) is the most effective method of purging destructive solids from any steam boiler system.

The BDHR automatically controls the surface blowdown to maintain the desired level of total dissolved solids (TDS) in the boiler, reducing the amount of blowdown to a minimum. It also recovers the heat from the high-temperature blowdown and transfers it to the incoming cold makeup water, maximizing boiler efficiency.

The blowdown heat recovery systems will usually result in a payback in a few short months from fuel savings alone.


Blowdown Separators

Cleaver-Brooks blowdown separators use a safe, economical, flash purification process for enhancing blowdown effectiveness.

Steam is rapidly separated from blowdown water and vented out the top of the blowdown separator in a cyclonic spinning action.

Cleaver-Brooks blowdown separators are compact and can be quickly installed with few connections.


Flash Tank Heat Recovery


The Cleaver-Brooks AHR flash tank economizer recovers heat and steam, which can then be recycled to be used as-is or used to heat new feedwater, thus saving fuel and money. This system quickly pays for itself with fuel savings resulting from recycled heat that would otherwise be wasted through exhaust. Our flash tank is a coil-type, flash tank heat exchanger. It is a compact, low-cost alternative to the shell-and-tube design.






Long Island Office

  • Address: 1363 Lincoln Avenue, Unit 3, Holbrook, NY 11741
  • Tel: +(631) 253-2300
  • Fax: +(631) 253-0166

Quick Contact