Knowledge Hub

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...

Installing reliable gas detection is critical for personnel safety, facility protection, and regulatory compliance. Macurco’s combined portfolio—backed by decades of experience, rugged hardware, and field-flexible design—makes it an industry leader in wastewater gas detection. Whether protecting staff in tight spaces or validating remote systems, their solutions deliver safety, compliance, and operational continuity.

Hot water delivery in industrial and commercial buildings isn’t just about cranking up the heat—it’s about delivering clean, safe, and...

What’s Driving the Demand for Heat Pumps? Several trends are converging to make 2025 a breakthrough year for commercial heat pump...

When it comes to creating a healthier, more comfortable learning environment, air quality matters —and Bard is leading the way. Each...

When your project demands reliable, efficient, and customizable heating solutions, look no further than the Finned Tube Unit Heaters from...

Industrial environments demand rugged, reliable systems capable of operating under continuous use, often in demanding conditions. From manufacturing floors to process plants and warehouses, we supply equipment from leading manufacturers who specialize in precision, durability, and control. These solutions are built to optimize productivity, ensure safety, and maintain environmental standards across a wide range of industrial applications.

When it comes to water level management in critical systems, failure is not an option. That’s why more engineers and contractors are...