Accelerating Clean Cooling & Heating

Contact UsNewsletter
01

Why this matters

Most refrigeration runs on chemicals that warm the planet — or quietly poison it.

HFCs warm the atmosphere up to 14,000× more than CO₂. Their HFO replacements break down into TFA — a forever chemical now detectable in rain, ice, and human blood.

The answer

CO₂, ammonia, hydrocarbons — proven for over a century. They don't warm the planet, and they don't leave a forever chemical behind.

Natural refrigerants avoid both.

02
Primary metric

A year of avoided emissions, made visible.

GHG emissions Vahterus avoided over the lifetime of 2024's equipment.

Stage 1 · Scale check

1 metric ton of CO₂e is an 8-meter cube.

A petrol car emits roughly that much in six months.

In real-world terms

What it adds up to.

72k
homes / year
powered for a year on the same footprint
125k
petrol cars off the road
for one year of driving emissions avoided
2.2B
km not driven
distance equivalent never burned in a tank
03
Hidden pollutant

TFA: the forever chemical you haven't heard of.

Trifluoroacetic acid is an ultra-short-chain PFAS that leaks from synthetic refrigerants and accumulates in rainwater. Natural-refrigerant systems leak zero.

Stage 1 · Emission

HFCs and HFOs leak from refrigeration systems.

Synthetic refrigerants escape over the lifetime of every system — installation, service, end-of-life. The leaks are small, but they add up across millions of installations worldwide.

Refrigerant gas leaking from cooling equipment
04

Growth

Cumulative avoided CO₂e emissions over the years.

Vahterus has been ATMO Approved since 2023 — 2 consecutive years of independently verified impact.

0
metric tons of CO₂e · GWP 20 years
2023
2024
2025
0
metric tons of CO₂e · GWP 100 years
2023
2024
2025
05
Voices from the field

What operators say after a year on natural refrigerants.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Performance

The product is a combined PSHE cascade heat exchanger. It has been providing the expected capacity.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Quality & Reliability

We haven't experienced any issues with the product since the system was started.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Safety

The product is PED certified. Although it is not a requirement in Thailand, it is accepted here.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Service

We have been using Vahterus products for 15 years and always get good technical support and prompt responses. The delivery time for this order was in line with our project schedule and complied with the initial commitments from Vahterus at the time of order.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Satisfaction

We will very likely work with this company again. Apart from the good technical and commercial support we get from them, they provide a unique equipment design that fits our requirements for some projects.

Mathieu Balay
Director of Engineering
Sirayooth Co., Ltd.
Training

They shared with us their refrigerant handbooks. Although they did not provide trainings, we meet regularly to discuss their latest product developments and new application opportunities.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Performance

Yes, very clean and professional work by Vahterus. The performance meets expectations and the machines run flawlessly on our end.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Quality & Reliability

The quality is outstanding, there are simply no words for it. The reliability has been excellent from the quotation phase through to delivery, and we have never experienced any issues. A top supplier for plate & shell.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Safety

Yes.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Service

We have not used any service so far. The delivery was organized by us as a company, but Vahterus was very supportive on site.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Satisfaction

We are currently still working with the company and will continue to do so in the future. Transparency and speed are very important to us, and we get both from Vahterus. As a Swiss manufacturer, we rely on high quality, which we also receive from Vahterus. At present, we have no complaints as OffiTec Heating & Cooling.

Baris Sahin
Managing Director - Ammonia Engineer
Offitec Group AG
Training

Yes they have, but we don't need it.

06
The company

Vahterus: company profile.

Their durable, compact, and custom-made heat exchangers are designed for energy efficiency and demanding conditions. Through continuous innovation, automated production, and collaboration with customers, Vahterus holds several global patents and awards for its environmentally friendly products.

Work with Vahterus

Tell us about your project — we'll route the conversation to the right team.

Get in touch

Become ATMO Approved

Does your company use natural refrigerants?

The ATMO Approved label is independently verified — not self-declared, not marketing. If your equipment runs on CO₂, ammonia, hydrocarbons, or water, you may qualify.

Apply for the labelLearn how the process works