HYDROCARBON REFRIGERANT · GWP <1 R-22 / R-410A / R-404 / R-134

The natural refrigerant that just works in the systems you already own.

Eco Kold is an engineered hydrocarbon blend with a Global Warming Potential of <1. It's a direct, drop-in retrofit across five blends covering R-22, R-410A, R-404, and R-134/R-134A. Lower energy, lower emissions, longer equipment life. Already installed in hospitals, retail, and industrial facilities across the Americas, Europe, and Asia.

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GWP <1 ~~vs 1,810–3,922~~ ODP 0 ~~ozone-safe~~ Energy up to 50% lower Charge 55–65% less

Eco Kold HCR refrigerant tank on cream backdrop

Eco Kold · Documentary, ′26

The big picture

Refrigerant progression.

Four generations of refrigerant chemistry, each graduating past the last. ODP is Ozone Depletion Potential; GWP is Global Warming Potential.

CFCs

Banned

High ODPHigh GWP

HCFCs

Phased out

Low ODPHigh GWP

HFCs

Stop-gap

Low ODPHigh GWP

HC · Natural refrigerant

Long-term solution

Zero ODPVery low GWP

1987Montreal Protocol signed; CFC production ends in the 1990s

2020US R-22 production and import end

2022→HFC phase-down steps begin under the AIM Act

TodayHC natural refrigerants: the long-term path

Eco Kold blends are HC natural refrigerants: GWP under 1 and zero ODP. Meet the blend family →

On the customer's electric bill

The numbers we put on a customer's electric bill: metered, on the record, independent audit in progress.

We don't publish lab projections. Every efficiency claim on this site comes off a real customer's utility bill, measured by an independent auditor. The current measurement cycle is underway; results publish here the day they clear.

Field-measured · Same thermostat, same equipment · Independent auditor

MEASUREMENT PROTOCOLCYCLE 2026-02

01Baseline periodExisting refrigerant, bills on file

02Retrofit dayDrop-in charge, same equipment

03Measured monthsSame thermostat setting, metered

04Independent auditThird-party verification

PUBLISHED RESULTPENDING AUDIT

The whole market, by GWP

Every refrigerant in commercial cooling, at the same scale.

Twelve synthetic refrigerants in active use today, ranked by Global Warming Potential. The single Eco Kold mark at the bottom is the entire HCR product line: every blend at GWP <1. The legacy gases climb to nearly 4,000.

100-yr CO₂-equivalent

All values per IPCC AR5 100-yr GWP

GWP values from the BHCR Refrigerant Replacement Comparison Chart, aligned with IPCC AR5 100-yr GWP figures. Full background, regulatory timeline, and replacement matrix →

Zoom in · HCR 4141 vs R-410A

One column does the work of two thousand.

The skyline above shows the gap across all blends. Below is the same gap, broken down across the four metrics that matter for an air-conditioning retrofit: HCR 4141 against R-410A, the most common pairing.

Global Warming Potential

the floor of the GWP scale

HCR 4141<1

R-410A2,088

Refrigerant charge

65%

less charge per system

HCR 4141350 g

R-410A1,000 g

Operating pressure

29%

lower system pressure

HCR 414178 PSI

R-410A110 PSI

Spec data sourced from manufacturer datasheets. Independent field measurement is underway; verified results will be published once cleared. View the full comparison chart →

Greater purpose · Reduced emissions · Same equipment

A refrigerant should make the planet cooler, not warmer.

BHCR Hq has been engineering hydrocarbon refrigerants in Delaware and Panamá since 2009. Eco Kold replaces the synthetic gases responsible for an estimated 7.8% of global greenhouse-gas emissions.

GWP <1 · Same equipment

Have a system that's been running on R-22, R-410A, R-404, or R-134?

Send us the equipment make, model, and refrigerant type. We'll match the right Eco Kold blend, send a quote, and put you in touch with a certified installer.

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