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GreaseMaster - Gas Fired Make-Up Air Units

A-Series Air Handler A-I Series Indirect Fired A-E Series Electric Heater GM76 – Compact Direct Fired Heater GMU – Standard Rooftop Filtered Makeup Air Fans Modular Packaged Unit GM-IBT – Modular Indirect-Fired Bent Tube Heater

A-Series Air Handler

Modular Makeup Air Systems

For More Information:
Manufacturer's Site
GreaseMaster A Series Air Handler

Commercial kitchens from coast to coast and around the world rely on GreaseMaster products. Its modular makeup air systems all include G90 galvanized steel construction, easy access doors, a rigid common base, and pre-wired, pre-piped controls. Available modules include air handlers, direct-fired, indirect-fired, or electric heat, evaporative cooling, heating and cooling coils, and filtration.

The A Series Makeup Air Unit line features:

  • Blower performance up to 22,000 cfm
  • Vibration isolation
  • Horizontal or down discharge
  • High-efficiency motors
  • Adjustable drive sheaves
  • Removable doors for easy access
  • Optional intake damper
Optional features
  • Motorized intake damper
  • Gravity intake damper

A-I Series Indirect Fired

Modular Make-Up Air Systems

For More Information:
Manufacturer's Site
GreaseMaster A-I Series Air Handler

Commercial kitchens from coast to coast and around the world rely on GreaseMaster products. Its modular makeup air systems all include G90 galvanized steel construction, easy access doors, a rigid common base, and pre-wired, pre-piped controls. Available modules include air handlers, direct-fired, indirect-fired, or electric heat, evaporative cooling, heating and cooling coils, and filtration.

The A-I Series of indirect-fired makeup air systems features:

  • 200,000 to 800,000 Btu input
  • 1,300 to 13,000 cfm
  • Stainless steel burner, heat exchanger, and drip pan
  • Electronic flame modulation
  • Natural gas applications
  • Power vent with proving switch
  • Redundant gas valves
  • Service doors on both sides for burner maintenance
  • 120-volt control transformer with single point electrical connection
  • Intermittent spark pilot with timed safety lockout
  • High-temperature limit switch
  • Airflow switch
Optional features
  • LP gas application
  • Freeze protection
  • Room temperature controls
  • High/low gas pressure switches
  • Remote panel
  • Motorized intake damper

A-E Series Electric Heater

Modular Makeup Air Systems

For More Information:
Manufacturer's Site
GreaseMaster A-E Series Air Handler

Commercial kitchens from coast to coast and around the world rely on GreaseMaster products. Its modular makeup air systems all include G90 galvanized steel construction, easy access doors, a rigid common base, and pre-wired, pre-piped controls. Available modules include air handlers, direct-fired, indirect-fired, or electric heat, evaporative cooling, heating and cooling coils, and filtration.

The A-E Series of electric heater makeup air systems features:

  • Ratings up to 235 kW and 400–22,000 cfm
  • Controls for stand-alone or integrated operation
  • Redundant safety controls
  • Electric coil safety equipment
  • Temperature control systems
  • Contactor and overload
  • Observation port
  • Two access doors to electrical controls and blower/motor assembly
  • Motorized back draft damper
Optional features
  • Freeze protection
  • Room temperature controls
  • Remote panel
  • Motorized intake damper

GM76 - Compact Direct Fired Heater

Makeup Air System

For More Information:
Manufacturer's Site
GreaseMaster GM76 Gas Fired Makeup Air Package

The GM76 Direct Gas Fired Makeup Air package from GreaseMaster delivers tempered make-up air for installations requiring frequent air changes. The series includes units for natural and propane gas applications, and indoor or outdoor installation.

One size is available with a max Btu rate of 241,290 and 1,800 cfm. The self-adjusting burner profile plates are a unique feature that allows two-speed and variable air volume (VAV) applications. The plates ensure proper air velocity and pressure drop across the burner for clean combustion. Spring-loaded profile plates react to the momentum of the fresh airstream; therefore, needing no motors or actuators to drive them nor be manually set to a specific position.

The burner consists of non-clogging, stainless steel combustion baffles attached to a cast iron gas supply section and is capable of nearly 100% thermal efficiency with a maximum turndown ratio of 15 to 1. The burner module has a standard horizontal inlet and discharge duct connection upstream of the blower. The heater has a standard horizontal inlet designed to accommodate an outdoor air inlet hood with a standard 2” filter and screen.

Features and Benefits
  • G90 galvanized construction
  • Easy access doors
  • Pre-wired, pre-piped controls
  • Horizontal or down discharge
  • Adjustable drive sheaves
  • Fully insulated casing
  • Stainless steel burner with aluminum casting
  • 120-volt control transformer with single point electrical connection
  • Redundant gas valves
  • Intermittent spark pilot with timed safety lockout
  • Electronic flame modulation
  • High-temperature limit switch
  • Airflow proving switch
  • Economizer inlet thermostat
  • Motor starter
  • Disconnect switch
  • Burner observation port

GMU - Standard Rooftop Filtered Makeup Air Fans

Makeup Air Systems

For More Information:
Manufacturer's Site
GreaseMaster GMU Rooftop Filtered Makeup Air Fans

This economical blower delivers fresh outside makeup air for installations requiring frequent air changes. Standard features include vibration isolation, high-efficiency motors, and adjustable drive sheaves (belt drive units only). Belt drive units also include pulleys and belt(s). This unit has a standard horizontal inlet designed to accommodate an outdoor air inlet hood with standard 2″ filters. For outdoor installation and available in vertical or horizontal discharge configurations.

Features and Benefits
  • Sizes up to 6,000 cfm, and external static pressures up to 2″ wg.
  • Unit housing made from G90 galvanized steel
  • Blower mounted on vibration isolators
  • High-efficiency motors standard
  • Removable lids for ample access to internal components
  • Variable pitch motor pulley allows for field adjustment and system balancing (belt drive units only)
  • Unit available in down or straight through discharge
  • 2″ washable filters standard
  • Disconnect switch
  • Spring loaded lid latches
  • Speed control standard on direct drive units

Modular Packaged Unit

Modular Makeup Air Systems

For More Information:
Manufacturer's Site
GreaseMaster Modular Packaged Unit

The Modular Packaged Unit (MPU) is a factory-packaged air conditioning and heating unit for 100% Outdoor Air (OA) applications. Units operate between 360 and 600 cfm per ton of cooling, depending on climate.

The modular packaged cooling unit is optimized to work in conjunction with highly efficient makeup air delivery methods, such as perimeter supply plenums. The unit can either have a down or end discharge and can be used with both electric and gas heat. All refrigerant is environmentally friendly R-410A and condensers have a minimum SEER rating of 14 for greater efficiency.

One benefit of this unit is the multiple cooling stages that increase efficiency by not using 100% of the cooling capacity when it is not needed. An internal makeup air cooling thermostat automatically energizes the first stage when cooling of the makeup air is required. The same thermostat has a built-in adjustable differential to energize the second stage of cooling when required.

The condensers are top mounted on the makeup air unit to minimize roof space requirements and are situated for optimal airflow and serviceability.

Features and Benefits:
  • Integral cooling staged thermostat
  • Multiple-stage cooling for lower energy usage
  • Pre-piped and charged refrigeration circuits
  • Optimized for 100% OA for kitchen use
  • Cooling requires no additional roof footprint
  • Coils and condensers sized to comfort cool makeup air
  • TX valves and filter/dryer kits
  • External equalization lines for TX valves
  • Hard start relay kits on the condensers
  • Condenser disconnect switch
  • Vacuum-tested and leak-checked lineset/coils
  • Condenser transformer prewired
  • Thermostat prewired and interlocked with heater
  • Integral weather/hail guards

GM-IBT - Modular Indirect-Fired Bent Tube Heater

Modular Makeup Air Systems

For More Information:
Manufacturer's Site
GreaseMaster GM-IBT Bent Tube Heater

The Modular Indirect-Fired Bent Tube Heater delivers clean air into an indoor environment. Units are for indoor or outdoor installation and can use either natural or LP gas.

The standard unit includes a blower module and the GM-IBT heater module. Each furnace has a 6:1 turndown ratio and a maximum turndown of 28:1 for the entire unit, depending on the total required Btu capacity and the number of furnaces in the unit.

Every unit is programmed to start in high fire mode to ensure consistent light-off and is equipped with an electronic, Vernier-type fully-modulating control system. The duct furnaces are all type-409 stainless steel, and certified by the American Gas Association and approved by the Canadian Gas Association. Each model utilizes a single modulating stage and between zero and three additional ON/OFF stages depending on the required heat output.

In addition, the speed of its power-vent blower on the single modulating furnace is varied as the gas flow changes, thereby maintaining a constant 80% combustion efficiency over the entire gas-firing range of the unit.

Features and Benefits
  • Bent tube in-shot style furnace with type-409 stainless steel heat exchanger
  • Variable speed power-vent motor
  • Discharge, space, or Building Automation System (BAS) temperature control
  • Isolated and insulated electrical controls vestibule
  • Inlet and manifold gas pressure indicating gauges
  • Electronic push button adjustment for the modulating gas valve
  • High-temperature limit switch
  • Flame rollout switch with manual reset
  • LED indicators for rroubleshooting
  • Economizer inlet air thermostat
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                      Jim Lubratt

                      President & Chief Executive Officer

                      Jim Lubratt has been president of SVL since 2006. He first joined the company as a sales engineer in 1992 and was made a partner in 2000. He holds a Bachelor of Science in mechanical engineering from Southern Methodist University and first entered the HVAC industry as a marketing engineer for a heat pump manufacturer in Texas.

                      In addition to his role at SVL, Jim is vice president of AQC Industries, LLC, a manufacturer of specialized underground ductwork systems. He is also an investor and board member for Hydromx, Inc., a manufacturer of heat transfer nanofluids, and Crotega, Inc., creators of personal and building security solutions.

                      Jim and his wife, Tracy, met in college and married in 1993. They have three children, two of whom have graduated college in Texas, while their youngest is attending Grand Canyon University in Arizona.

                      Outside of work, Jim places a priority on his faith, family, friends, and fitness. He enjoys helping people-supporting charities, time with his wife and kids, road-biking with friends and efforts to stay physically fit.

                      A message from Jim on the achievements of SVL

                      SVL started in February 1967 by Charlie Schwab and Craig Vollhaber. Schwab-Vollhaber, Inc. (as it was named at the time) steadily grew and, in 1985, welcomed Paul Lubratt as another partner, becoming Schwab-Vollhaber-Lubratt, Inc. SVL’s founders had the determination to build the most talented, customer-focused HVAC representative in the Midwest. Our original drive and passion still shape the company and culture to this day. The achievements of an organization are the results of the combined efforts of every individual. From humble beginnings, SVL founders paved the way to industry success with hard work and determination. “Today, SVL is strongly organized with great people to lead our industry forward as we are challenged with fast-paced changes to reduce our environmental impact,” says Jim. Now, 55+ years later, SVL is under the leadership of two new principals who share the same vision and drive that has propelled SVL throughout the years. Built on a foundation of integrity, Jim Lubratt, and Charlie Vollhaber strive to ensure opportunities for personal growth, improved work environment, and shared life enrichment. The achievements of our organization are the results of the combined efforts of every individual.

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                      Charlie Vollhaber

                      Executive Vice President & Officer

                      Charlie Vollhaber is a third-generation employee at SVL, as a grandson of company co-founder Craig Vollhaber and son of former CEO Todd Vollhaber. Charlie holds a Bachelor of Science in mechanical engineering and an MBA, both from the University of Minnesota. He became an outside salesman for SVL in 2013, was made a partner in 2019, and then executive vice president and officer in 2022.

                      He grew up playing sports, including football, basketball, golf, and track, and enjoys the competitive nature of the HVAC industry. “I like that no two days are ever the same as there are always questions to answer and problems to solve,” he says. “Most of all, I enjoy working with great people and coordinating together on challenging projects to achieve positive results together.”

                      Outside of work, Charlie enjoys spending time with his wife, Lesley, and their three boys. He’s also fond of golfing, traveling, and attending concerts and sporting events. One of his favorite quotes is from the book of Philippians: “Do nothing from selfish ambition or conceit, but in humility count other more significant than yourselves. Let each of you look not only to his own interests, but also to the interests of others.” Because HVAC and construction is such a team effort, he says, “this mindset helps to create positive results in a vast majority of situations.”

                      A message from Charlie on the culture of SVL

                      “At SVL, we strive to cultivate a unique culture that revolves around finding and empowering exceptional individuals. We believe in equipping our team members with the right tools and resources to succeed.

                      As we’ve grown the business, we have deliberately maintained a small firm culture, fostering an environment where collaboration thrives. We encourage open dialogue and promote a sense of comfort among our employees, allowing anyone to ask questions and seek guidance from anyone else, regardless of their level within the organization.

                      We foster a workshop-like atmosphere where everyone’s contribution is valued. Presenting your work to another individual or a group of teammates provides a platform for collaboration, where ideas are shared, dissected, and improved collectively. We firmly believe in the power of mentoring and provide various avenues for both formal and informal guidance. Whether it’s through structured training programs or casual conversations, we encourage team members to discuss a wide range of topics, from work-related successes or issues to everyday personal life topics.

                      In summary, our culture is built on the foundation of attracting exceptional individuals, empowering them with the necessary tools, and fostering a collaborative environment where mentorship and growth thrive. We are committed to creating an atmosphere where every team member feels supported, valued, and encouraged to reach their fullest potential.”

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                      Al Gramse

                      Vice President of SVL Service Corporation

                      Al Gramse has been in the HVAC industry for over 30 years. He began as a service technician.  Then over his career worked in technical support, building automation, then service manager prior to his current role.

                      How did Al end up in the HVAC industry?  “After high school, I took a couple years to figure out what I wanted to do.   Where I was working at the time, a grumpy old coworker, who I didn’t get along with, walked up to me and said ‘What are you doing here?  Go back to school.’”  I said, “For what?”  He said “There’s a tech school down the street.  Go down there and pick something that interests you”. Then he walked away.  That weird interaction, with someone I didn’t get along with, sent me down a 30-year path in the HVAC industry.   Never underestimate the potential of a little encouragement.   Even if it is from a strange source.

                      Al has been with SVL for 15 years and is the head of our SVL Service division. “The people here are some of the best in the industry,” Al says. “A bunch of team-oriented, knowledgeable, go-getters.” His personal mantra is “figure it out,” “Do a little fact-finding on your own. Use your own brain before you use someone else’s. But know when to ask for help.” he prescribes. “It’s amazing what you can accomplish on your own if you dig in a little bit.”

                      Outside of work, Al has lots of outdoor hobbies, including hunting, fishing, and motorcycling, though his favorite pastime is simply hanging out with family.

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                      Jennifer Roach

                      Director of Marketing, Events & Administration

                      More than just a creative director, Jen brings 30 years of marketing and leadership magic to SVL. Her journey began in the trenches of graphic design, quickly evolving into crafting eye-catching campaigns for iconic brands like Target, Gabberts, Gander Mountain and Camping World. As a seasoned director and agency veteran, she honed her skills with recreational vehicle giant Parts Unlimited before leading creative teams at HOM Furniture and, ultimately, landing at SVL during a crucial growth phase.

                      Jen thrives on "servant-leadership," empowering her team and fostering a culture of trust and mutual respect. "It unlocks their potential, fuels creativity, and leads to work we're all proud of," she says. "I want my team to care, collaborate, and push boundaries together."

                      When not shaping impactful campaigns, Jen enjoys weekend adventures with her husband, Scott, and son, Crew. Their lives are a tapestry of shared passions, from bike rides and baking experiments to cheering on Simley High School wrestlers. And with her recently built forever home in Cottage Grove, her free time now includes a new, thrilling chapter: weekend renovation warrior!

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                      Mike Ruff

                      Vice President of Information Technology

                      Mike Ruff, the Vice President of Information Technology at SVL Inc., is a seasoned professional with an impressive 24-year tenure in the IT industry. His journey in the field is marked by extensive experience and expertise in various domains, including serving as a Cloud Architect focusing on Azure Software as a Service (SaaS), Infrastructure as a Service (IaaS), and both B2B and B2C solutions. Mike’s skills extend to being a Security Architect, where he has honed his knowledge in safeguarding digital assets, and he is also proficient in the Microsoft 365 stack, virtualization, routing, switching, and wireless technologies.

                      Beyond his professional roles, Mike is deeply passionate about technology in all its forms, which is evident in his career and personal hobbies. His love for technology is not just limited to his work but also spills over into his leisure activities. In the summertime, Mike enjoys the thrill of riding his motorcycle, embracing the freedom and adventure it brings. When winter arrives, he switches gears to snowboarding, seeking the excitement and challenge of the snowy slopes. These hobbies reflect Mike’s dynamic personality and continuous pursuit of technically engaging and physically exhilarating activities.

                      Mike Ruff's blend of professional expertise and personal passions make him a unique and valuable asset to SVL Inc., embodying a perfect synergy of technical acumen and a zest for life's adventurous aspects.

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