Knowledge Hub

With over 75 years of experience, Precision has mastered the art of simplifying electric boiler systems for commercial and industrial applications across a wide range of markets. Whether you're designing for a hospital, a manufacturing plant, or a museum archive, their ST Series electric steam boilers are built to perform with reliability, flexibility, and low emissions. Spotlight on the ST Series The Model ST Electric Steam Boiler  is a standout in the lineup. It’s engineere

In the fast-paced world of project management for HVAC-intensive builds, cooling systems are the backbone of comfort and efficiency. Over-spec or under-perform here, and you're looking at escalated costs and delays. That's why VHF Sales, Inc. partners with innovators like API Heat Transfer, ClimaCool, Delta Cooling Towers, and Thermal Care—manufacturers delivering advanced chillers and heat exchangers that outshine the competition. API Heat Transfer's shell & tube and plate e

Instead of tearing out the entire fan coil unit, EnviroKIT retrofits the equipment already in place by replacing only the critical internal components. The result is a modernized system that delivers improved performance, better energy efficiency, and extended equipment life without the disruption of a full replacement project. For facility managers and building owners looking to upgrade HVAC performance while controlling budgets, EnviroKIT provides a practical and sustainab

When every project has unique airflow, acoustic, and space requirements, custom air handlers  become the key to system success. Buffalo Air Handling has been engineering and manufacturing custom AHUs for more than a century—delivering units that are built to endure, backed by rigorous testing, and supported by comprehensive services. Whether you’re designing for a hospital, laboratory, university, data center, or industrial facility, Buffalo’s custom solutions give you the fl

For project managers tackling hydronic systems in commercial or industrial settings, boiler selection can define project success. Reliability, efficiency, and ease of integration are non-negotiable. VHF Sales, Inc. represents powerhouses like Camus Hydronics, Precision Boilers, Sterling Commercial Hydronics, and Dunham-Bush, offering boilers and systems that deliver unmatched performance.

Winter in the Heartland means more than just snow; it demands HVAC systems that deliver unwavering heat without breaking the bank on energy costs. VHF Sales, Inc. is excited to spotlight ClimateMaster, the premier provider of geothermal and water-source heat pumps that turn the earth's stable temperatures into efficient, eco-friendly heating for commercial, institutional, and agricultural applications.

At VHF Sales, we're committed to delivering top-quality HVAC solutions to our clients across Iowa and the surrounding areas. As a trusted distributor with over 30 years of experience, we partner with leading manufacturers like Qmark by Marley Engineered Products to offer reliable, efficient, and innovative electric heating products. Qmark has built a reputation for high-performance heating and ventilation solutions that cater to residential, commercial, and industrial applica

One critical area that can make or break your HVAC system's reliability is the selection of pumps. At VHF Sales, Inc., we represent top-tier manufacturers like American-Marsh Pumps, Plad Pumps, Scot Pump, and WILO Pumps, all known for their durable, performance-driven centrifugal pumps tailored for HVAC, municipal, and industrial applications.

In today’s building environments, adaptability and efficiency are non-negotiable. Traditional chiller/boiler systems often take up more space, require more maintenance, and offer less flexibility when it comes to load matching. That’s where ClimaCool Modular Chillers  stand out. By using multiple independent modules and refrigeration circuits, ClimaCool delivers reliable performance, built-in redundancy, and unmatched design flexibility for nearly any project. Why Modular Chi

At VHF Sales, we pride ourselves on partnering with industry leaders to deliver top-tier HVAC products to our clients in Iowa and surrounding regions. Climatecraft stands out as a premier manufacturer of custom air handlers, renowned for their innovative designs that prioritize performance, efficiency, and reliability. With over three decades of experience in the HVAC sector, VHF Sales is excited to showcase Climatecraft's offerings, which are engineered to meet the most dema

With over three decades of expertise in HVAC solutions serving Iowa and beyond, we are thrilled to feature Air+ as a cornerstone of our air purification portfolio. Air+, a cutting-edge brand specializing in bipolar ionization technology, empowers buildings to achieve hospital-grade indoor air quality (IAQ) without the drawbacks of traditional filtration methods. By harnessing the power of nature-inspired ions, Air+ products actively combat airborne pathogens, particulates, od

Fresh air is one of the biggest factors in building health, comfort, and efficiency. With stricter codes, tighter envelopes, and growing demand for sustainable design, ventilation can no longer be an afterthought. NexGen specializes in Dedicated Outdoor Air Systems (DOAS)  that make it easier to meet today’s indoor air quality and energy efficiency goals without overcomplicating your HVAC design. What a DOAS System Really Does A DOAS unit is designed to treat 100% outdoor air

The Topvex TR series is all about making high performance fit into tight spaces. With a design slim enough to pass through a standard 900 mm door opening, it’s a smart choice for buildings where installation space is limited. Compact design – Small footprint makes it ideal for retrofits and space-restricted installations. Quiet operation – Low sound levels make it suitable for offices, hospitals, and shopping centers. Versatile installation – Available for indoor or outdoor a

QMark’s lineup covers nearly every application, from silent radiant heaters for classrooms to explosion-proof unit heaters for petrochemical plants.

When it comes to designing HVAC systems for demanding environments, not all air handlers are created equal. That’s why ClimateCraft’s custom air handling units (AHUs) are trusted by engineers, contractors, and building owners nationwide. With innovative cabinet construction, advanced fan systems, and flexible material options, ClimateCraft delivers best-in-class performance designed to meet the toughest project requirements. Innovative Cabinet Construction At the heart of eve

Dunham-Bush has been delivering reliable, high-efficiency cooling solutions for well over a century. Their diverse chiller portfolio includes water-cooled centrifugal chillers, screw chillers, modular scroll chillers, and air-cooled scroll chillers—each engineered to balance performance, sustainability, and long-term dependability. Among this lineup, the ACDS Series air-cooled scroll water chillers stand out for their versatility and environmentally conscious design...

This unit is all about solving real-world challenges in the field—tight spaces, tricky retrofits, and fast-paced install schedules. It’s a high-efficiency fan coil that mounts directly to the wall, giving you serious flexibility without cutting corners on comfort or control.

Macurco’s new AireShield Refrigerant Monitor brings a step-change in detection performance. Built on advanced NDIR (Non-Dispersive Infrared) sensor technology, AireShield is engineered for accuracy, durability, and ease of use, making it a compelling option for engineers looking to improve safety and reduce maintenance costs.

In commercial and industrial settings, chiller rooms are critical for maintaining optimal temperatures. However, the use of refrigerants...

Industrial and commercial hot-water systems are often underestimated. At a glance, the goal seems simple: keep water hot and deliver it where it’s needed. In practice, however, these systems require careful balancing of temperature control, water quality, energy efficiency, and long-term reliability. Once water enters the building, maintaining system performance (and compliance) becomes the responsibility of the building owner and design team. Meet the Wilo-Stratos MAXO-Z The