Energy Saving Hydronic Additive

More than 12% of all CO2 emissions in North America come from heating and cooling buildings. EndoTherm lowers building energy consumption and CO2 emissions by up to 15% in HVAC systems.

EndoTherm qualifies for utility rebates!

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Not all buildings are eligible for a rebate.

However, EndoTherm can still save energy & lower emissions up to 15% with a simple payback of less than 2 years.

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Not all buildings are eligible for a rebate.

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What is EndoTherm?

EndoTherm is a hydronic additive that improves energy efficiency in hydronic HVAC systems. It is the fastest and easiest way to lower energy consumption and emissions in almost any closed-loop system, including boilers, chillers, heat pumps, and geothermal systems. EndoTherm offers a simple payback in less than two years in most applications and will last at least ten years in the system. A pioneering non-ionic surfactant additive, EndoTherm is used in over 100,000 systems worldwide, with a proven track record of reduced energy bills and CO2 emissions in multi-unit residential, commercial/industrial buildings, and greenhouses.

The Pace Solutions team can assist in determining your costs, rebate, and energy savings based on some details about your boiler system.

Pace’s service team can swiftly add the EndoTherm additive to your boiler’s existing water in just minutes, resulting in a reduction of 10-15% in natural gas consumption. This process requires no downtime, setpoint changes, or additional equipment.

Are you a FortisBC or SaskEnergy Customer?

FortisBC and SaskEnergy offer energy efficiency rebates on EndoTherm to qualifying clients.

Carbon Reduction Results





Can Water Be Energy Efficient?

Many buildings use water or a mix of water and glycol to transport heat for space heating and cooling. The high surface tension of water limits heat transfer causing the system to run inefficiently, consuming excess energy and generating increased emissions. EndoTherm and EndoGreen can be added to any hydronic system at a low concentration to reduce surface tension by 60%, significantly improving heat transfer.

By increasing heat transfer with EndoTherm, the system will hit set-points quicker and runs less frequently to maintain heat optimizing the energy efficiency of your existing equipment.

The result is up to a 15% reduction in HVAC energy consumption and associated emissions. With a simple payback between 12-24 months, EndoTherm is the easiest way to lower building energy consumption, with the best return on investment compared to alternative methods.

EndoTherm and EndoGreen Benefits

Optional Equipment:

Pace Automated Feed System monitors water levels and maintains EndoTherm concentrations for optimum system performance.

Cloud-based server connection tracks consumption and provides staff with low-level and water loss alerts in real-time.


Being The Change

Canadian provincial governments are mandated by the Federal Government to have zero emission buildings. The main cause of building emissions is from the natural gas consumed to heat buildings. One province wanted to lower their boiler natural gas consumption to reduce emissions but replacing their existing boilers was not an option. Instead, they investigated EndoTherm’s ability to improve their boiler system energy efficiency without changing equipment.


Innovating Efficiency

The Pace team evaluated several buildings with the support of provincial staff, operations team, and energy consultants. EndoTherm was added to the boiler systems in early fall and natural gas consumption was monitored over the heating season.

Surprising Savings

The operations team was impressed by a near 12% reduction in gas consumption just by adding EndoTherm. The simple payback for the EndoTherm project was less than two years compared to a boiler replacement which would have taken 10-15 years to provide a full payback. This allowed the Province to invest the savings in more energy efficiency solutions, accelerating their carbon reduction strategy.



How does EndoTherm work?

EndoTherm reduces the surface tension of system water by 60% which increases heat transfer. The
increase heat transfer improves system efficiency.

How long is the simple payback from adding EndoTherm?

The average payback is 18 months. Results vary based on cost of energy, energy demand, and system

Is EndoTherm safe on HVAC components like copper, aluminum, mild steel, plastics etc?

Yes, EndoTherm has been independently verified to be safe on all materials used in traditional HVAC

Do I have to drain my system before adding EndoTherm?

Draining is not required for most systems with good water quality. It is always recommend to have balanced water treatment for peak energy efficiency.

What types of buildings can use EndoTherm?

EndoTherm can be used in any type of building including residential, institutional, commercial,
industrial, health care, military etc.

Can EndoTherm be used with traditional water treatment for corrosion prevention or freeze protection?

Yes, EndoTherm is non-ionic, meaning it can be used in parallel with traditional corrosion inhibitors and glycol.

Can EndoTherm reduce gas consumption in high efficiency boiler?

Yes. EndoTherm impacts the heat transfer capability of the system water therefore will save energy in all types of hydronic boilers. High efficiency boilers specifically benefit from the colder return water found in EndoTherm treated systems.


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