Glass splashback over a gas hob: what to know
300 °C heat, open flame, soot. Which glass holds up vs cracks within a year.
"Glass splashback will crack over a gas hob" — most common myth. The right glass holds up to 300 °C and hundreds of heat cycles. Here's what "right" means.
01Tempered only
Standard (annealed) glass cracks within a week over gas — thermal shock from burner-edge gradient. Only tempered survives. Minimum 8 mm (not 6).
02Heat physics
Tempered glass has internal stress from the heat-treatment. Direct burner heat causes expansion, but the strength margin handles up to 300 °C without breaking. Glass-transition point ≈ 350 °C, so there's a 50 °C safety margin.
03What NOT to do
- Thin 6 mm — even tempered, gas-burner load exceeds strength margin
- Laminated (PVB film softens at 150 °C) — electric/induction only
- Clear glass without back coating — soot darkens the back fast
- UV-printed area directly above the burner — inks can darken
04Distance from hob
| Hob | Min glass-to-hob |
|---|---|
| Induction | 30 mm |
| Electric standard | 80 mm |
| Gas 4-burner | 120 mm |
| Gas with grill | 150 mm |
052026 prices for gas-hob kitchens
- Solid colour, 8 mm tempered: from 8 400 ₽/m²
- UV print + white base: from 12 800 ₽/m²
- Frosted: from 9 600 ₽/m² (hides soot)
- Anti-fingerprint coat: +3 200 ₽/m²
Real case: Kamskaya St. flat, 4-burner gas, graphite solid 8 mm tempered, 130 mm from hob. Four years — no cracks, no chips, no darkening. Just wipe-down after cooking.
06This service at REAL GLASS
If you've read this far, the topic is probably relevant to a real project. We make glass splashbacks in-house in St. Petersburg, with a measure within 1–3 days, 1-year warranty and a fixed contract price. All numbers in this article come from our actual 2026 quotes.
For a project-specific estimate — see the service page or request a free on-site measure.
