Advanced Combustion · Scenario 08

Hydrogen combustion
ignition systems.

Ceramic hydrogen igniters are ideal for use with hydrogen burners, H₂-blended gas appliances, and fuel cell combustion backup systems. Because H₂ flames can be difficult to see, reliable first attempt ignition is an important safety requirement, not simply a performance measure.

H₂-rated

100% H₂ compatible

3 sec

Heat-Up

First attempt

Ignition reliability

Safety-critical

Application

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★ EU hydrogen transition — ignition impact

What 20% H₂ grid blending means for appliances

20%

EU H₂ blending target by 2030

300M+

Existing EU appliances requiring H₂ compatibility

Invisible

H₂ flame — missed ignition is safety event

H2Ready

Certification program active

Certifications & Standards

ISO 9001IATF 16949CERoHS · REACHUL Recognized

20%

Hydrogen blending target in EU gas grids by 2030 — all existing appliance igniters must be compatible

300M+

Existing gas appliances in Europe requiring H₂-compatible ignition as grid blending increases

Wider range

Wider flammability range and lower ignition energy than methane — requiring reliable first-attempt ignition.

2026

Target date for BLK H2Ready certification data publication

01 · The Application

Hydrogen demands faster, more reliable ignition.

⚗️

BLK igniter in hydrogen burner test rig

Replace with product photo

Hydrogen differs significantly from natural gas in several characteristics: a low-visibility flame, a wider flammability range, a faster flame speed, and a lower minimum ignition energy. These properties require hydrogen burner igniters capable of reaching ignition temperature rapidly while firing reliably upon first try.

As OEMs explore hydrogen blending and dedicated hydrogen platforms, each igniter compatible with these platforms must be thoroughly evaluated to verify timing, surface temperature, control board sequencing, and first attempt ignition reliability.

Technical Requirements

Ignition reliabilityFirst-attempt mandatory — safety requirement

Heat-up time<3 seconds to 1,100°C

H₂ compatibility100% H₂ and blended gas rated

Cycle life100,000+ at 20,000 cycles/yr

02 · Igniter Technology Selection

Hot surface vs spark ignition for

hydrogen burners

★ Recommended

Si₃N₄ Hot Surface (BLK)

100K+ cycles · 3 sec · highest first-attempt reliability

✓
Large surface ignition zone — compared with point spark, supports ignition across a wider air-fuel operating window.
✓
3-second heat-up — fires before H₂ accumulates in combustion chamber
✓
100,000+ cycle life — reliable across seasonal on/off cycling
✓
H₂-compatible material chemistry — Si₃N₄ inert to H₂ at operating temperature
✓
H2Ready certification in progress — data available Q3 2026

View Full Specs →

Also Available

Piezoelectric Spark Ignition

Unlimited mechanical life · lower reliability

→
No electrical heater required — simpler circuit
→
Works on natural gas reliably
⚠
Lower first-attempt reliability on H₂ — point spark vs wide ignition surface
⚠
H₂ leak risk — lower reliability means more missed ignitions and H₂ accumulation

H₂-Ready appliance certification support

Ready for Europe's
hydrogen transition.

Request Engineering Data →Talk to an Engineer

H₂ program status

20% H₂/CH₄ blend: compatibility testing completed
100% H₂: combustion testing in progress
H2Ready cert: target data publication Q3 2026
OEM engineering: ignition timing review and control board support
NDA standard: before any H₂ program discussion

03 · H₂ Ignition Failure Risks

Why reliable ignition is safety-critical in H₂.

In natural gas, a missed ignition is a nuisance. In hydrogen, it is a safety incident. Understanding the failure modes is essential for H₂ appliance design.

Missed ignition — H₂ accumulation

In hydrogen appliances, H₂ accumulation in the combustion chamber before the next ignition attempt creates an explosive mixture. First-attempt ignition reliability is a safety requirement, not a performance preference.

Si₃N₄ fix → large surface ignition zone provides reliable first-attempt ignition across H₂/air stoichiometric range.

Faster flame speed — timing sensitivity

H₂ flame speed is 10× faster than natural gas. Hot surface igniters must reach ignition temperature before the gas valve opens — control board sequencing must be verified for H₂ operation.

Si₃N₄ fix → fast heat-up helps the igniter reach target temperature within standard control-board timing windows.

Higher NOx at hot surfaces

H₂ combustion at high temperatures produces NOx at higher rates than methane. Uneven igniter surface temperature creates local NOx hotspots.

Si₃N₄ fix → uniform surface temperature from high thermal conductivity reduces local NOx formation at the ignition point.

04 · Engineering FAQ

Questions from hydrogen appliance engineers.

Is BLK compatible with 20% H₂ blended gas?

Compatibility testing with 20% H₂/80% CH₄ blend completed — no ignition performance degradation. Full H2Ready certification data targeted Q3 2026.

What about 100% H₂ operation?

100% H₂ testing in progress. Si₃N₄ element is chemically compatible with H₂ at operating temperatures. Ignition timing control board parameters require adjustment — we provide application engineering support.

Do you provide H₂ appliance conversion engineering support?

Yes — ignition system design review, H₂/CH₄ blend compatibility data, control board timing recommendations, and first-article testing for OEMs undergoing H₂Ready certification.

Can CN-300 be used as a hydrogen burner igniter?

Yes. The CN-300 is designed to serve as a hot-surface hydrogen burner igniter for H₂-blended gas appliances, dedicated hydrogen burners, and fuel cell combustion backup systems.

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