title: Haydale JustHeat description: “Printed graphene-ink underfloor panels. Spec from the install guide. Savings claims stay company-modelled.” tags:
- industry
Parent: applications · haydale
What it is
Haydale JustHeat: plasma-functionalised graphene ink printed on PET, silver bus bars, copper tape, PET laminate. Sits under a floor covering. 48 V class. Indoor dry use. Company: CE and UL in 2025 results copy.
Numbers on the install guide (V25)
- Panel 600 × 530 mm (~0.31 m²)
- 62 W ±10% per panel at 48 V; ~1.25 A; 200 W/m² ±10%
- Max surface they state: 43 °C
- Substrate PET 250 µm; top PET 75 µm
- Ink: Haydale graphene-based heater ink + silver + copper tape
What stays company language
White paper (Mar 2025): demo-room modelling of large energy-cost and carbon cuts; “effective efficiency >100%” vs other systems on their comparison basis. That is Haydale’s model, not a utility tariff study on this page.