Grow Your Retrofit Business With Cambridge HTHV Technology

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When it comes to providing retrofit heating solutions for older, outdated and inefficient heating products you should look no farther than Cambridge Engineering’s High Temperature Heating and Ventilation (HTHV) products. Our products are an exceptional heating solution for warehouse, distribution and manufacturing facilities that are in need of a solution to provide better indoor comfort, reduce energy consumption and provide need ventilation during occupied hours even on the coldest of days.

To learn more about HTHV technology can be used in retrofit opportunities watch this short video:

Stay tuned for more videos from Cambridge on how to use our products in retrofit opportunities.

For more information visit us at and fill out the contact us form.

Retrofit Old Inefficient Heating Equipment with Cambridge HTHV Technology

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As an HVAC contractor who services commercial and industrial accounts you know that one of the biggest complaints that you hear from your clients is the high cost to heat their facility. You know this is especially difficult when they are still using old inefficient heating equipment. As a manufacturer of high efficiency industrial heating equipment we thought we would share a video with you about our ability to help you reduce your clients energy bills using Cambridge equipment.

In this video Marc Braun describes the three most common heating solutions (Unit Heaters, Boilers & Air Rotation units) that are a prime target for replacing with a Cambridge High Temperature Heating and Ventilation (HTHV) solution.

If you interested in learning more about retrofit opportunities using Cambridge HTHV equipment visit our website at to contact us.

Energy Efficienct Direct Fired HTHV Products qualify for Rebates

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Another reason to get excited about HTHV technology?

Building owners and facility managers can receive additional gas utility rebates when purchasing and installing HTHV technology.


For years, both electric and natural gas utilities have offered rebates for energy efficient products, and direct gas-fired HTHV is no different. Natural gas utilities across the country have been providing custom rebates for HTHV products through their commercial and industrial rebate programs for over a decade.

Because of the DOE’s study on the benefits of HTHV equipment, many natural gas utilities are adding prescriptive rebates for HTHV products to the already available custom rebates. Amounts vary by utility, but rebates can provide as much as $12,800 in rebate funding for a 3.2 million Btu heater, promoting the installation of even the largest heaters available.

Combining rebates with the gas savings that a 92% efficiency HTHV heater provides can help drive down the return on investment that today’s building owners and facility managers need to meet when purchasing capital equipment.

If you need help applying for your rebates, feel free to contact Cambridge Client Care at 888-919-1887. Our representatives understand the steps and are more than willing to assist you.

Now it’s easier and more cost effective than ever to install HTHV technology.

High Efficiency Space Heaters Get DOE’s Attention

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Over the past 25 years, ASHRAE has dramatically increased the minimum efficiency requirements for commercial buildings and their associated equipment. The direct result:

• 44% improvement in lighting efficiency
• 27% improvement in cooling efficiency
• 21% improvement in building envelope efficiency
• 37% improvement in commercial building efficiency overall
• But only 1% improvement in heating efficiency

With such a small increase in heating efficiency compared to other categories, High Temperature Heating and Ventilation (HTHV) direct gas-fired heaters caught the attention of the Department of Energy (DOE) as a way to dramatically reduce energy consumption.

Field Demonstration of High Efficiency Gas Heaters

In many commercial and industrial buildings, unit heaters are the popular choice for space heating. But, according to ASHRAE, these buildings require ventilation systems in addition to space heating in order to meet code. With separate systems providing space heating and outside air, most buildings have complex heating systems that consume too much energy.

Wanting to find out for themselves the viability of the HTHV technology, the DOE conducted their own independent study.

They discovered that direct-fired HTHV demonstrated 20% gas savings compared to standard unit heaters, a margin that could substantially reduce energy consumption and utility bills for commercial and industrial buildings in the U.S.

Direct-fired technologies have been widely adopted as high-efficiency ventilation units. The DOE’s study has proved HTHV’s viability in increasing heating efficiency in the United States, an area that not seen much improvement in the past 25 years.

Click here to download the full DOE study >>