Case Studies

Case studies

Field evidence, documented with context.

Efena evaluates each application against its equipment, fuel, operating conditions, and measurement approach. These cases distinguish measured site results from customer-reported observations.

Measured resultQuantified under defined conditions

A numerical comparison tied to the operating and measurement conditions used at the site.

Customer observationReported by site personnel

A qualitative operating or product observation that has not been presented as a controlled numerical result.

Upcoming validationDocumentation in development

A project that will be added only when sufficient baseline and post-installation information is available.

Efena oxyhydrogen system installed for a food-production thermal application

Efena on-site oxyhydrogen equipment in a food-production application.

Measured result

Arepas El Carriel

A Colombian food producer evaluated an Efena retrofit on a newly installed propane boiler rather than replacing functioning thermal equipment.

ApplicationFood production
Equipment50 BHP / 1,674 MBH boiler
Primary fuelPropane
Initial efficiencyApproximately 95%
19.8%

Recorded reduction in propane consumption under the operating and measurement conditions used for the comparison—even with a new boiler operating at approximately 95% efficiency before the retrofit.

This preliminary site result is application-specific and is not a universal performance guarantee. Interpretation depends on the baseline, boiler load, production, operating schedule, equipment condition, installation configuration, and measurement method.

ElectrolyzerW installed beside the Panificadora Emanuel industrial oven and burner

ElectrolyzerW installation documented at Panificadora Emanuel in Bogotá, Colombia.

Documented site comparison

Panificadora Emanuel

A technical and functional test evaluated an ElectrolyzerW retrofit on a Mecanomega industrial bakery oven using a Bairan turbo burner.

LocationBogotá, Colombia
Test dateJuly 26, 2025
OvenMecanomega industrial oven
BurnerBairan turbo burner
MeteringG-2.5 volumetric gas meters
HHO flowAverage 6 LPM
Latest repeated production-cycle results
Natural gas only2.746 m³Hamburger baking baseline
663 seconds
Natural gas + oxyhydrogen1.989 m³ averageAverage of three assisted cycles
640 seconds average

Measured production outcome

  • 27.6% lower average natural-gas consumption versus the baseline cycle.
  • 3.5% shorter average baking time, with a best assisted run of 585 seconds—11.8% faster.
  • All three assisted runs used less gas, within an approximately 26–29% reduction range.

Earlier studies

Oven heating7 → 4 minutes42.9% shorter
16.7% less natural gas
Croissant baking19.5 → 15 minutes23.1% shorter · 4.5 minutes saved
11.0% less natural gas

The heating, croissant, and repeated hamburger tests used different products, protocols, and endpoints. Their results are therefore presented separately and should not be combined into one performance percentage.

Mecanomega industrial oven tested at Panificadora Emanuel
Mecanomega industrial oven documented in the report.
G-2.5 gas meter showing the initial reading for the natural-gas-only trial
G-2.5 meter evidence used in the site comparison.
Oven control showing the recorded starting temperature for the HHO-assisted trial
Oven display recorded during the comparative testing.

Separately from the technical report, bakery personnel reported that the croissants were crisper on the outside while remaining moist inside.

The technical report recommends additional trials under matched conditions and automated control of HHO flow. A normalized conclusion would require repeated tests with the same starting and target temperatures, production load, oven settings, ambient conditions, and measurement procedures.

Upcoming validation

Noel case study

The Noel project will be added when the baseline, operating context, supporting media, and post-installation information are ready for a responsible public summary.

Discuss a project

How Efena presents field evidence

Define the baseline

Document representative fuel use, thermal load, operating schedule, production, and equipment condition before comparing results.

Compare like conditions

Account for variables that can distort a comparison, including load, duty cycle, weather, production, interruptions, and control settings.

State the limitations

Identify whether evidence is measured, preliminary, third-party verified, or based on customer observation—and avoid turning one site result into a universal claim.

Could your equipment become the next documented case?

Start with the equipment, fuel, operating schedule, location, and recent consumption data.

Complete the technical takeoff