Bioethanol fireplace sizing calculator | Chama Design

Bioethanol fireplace sizing calculator

Verify UL 1370 / EN 16647 compliance for your installation

Enter the maximum kW rating from the burner spec sheet

Length × width × ceiling height

Hallway, dining room, or other spaces the room opens to. Leave at 0 if not applicable.

Space 1 (e.g. hallway)

Space 2 (e.g. dining room)

Space 3 (e.g. adjacent room)

Total available volume

UL 1370

minimum (kW × 20), mitigation pathway available

EN 16647

minimum (kW × 10) + 1 ACH required

EcoSmart

conservative (kW × 25), no mitigation

Maximum burner for this room

kW

UL 1370 strict. EN 16647: kW · EcoSmart: kW

Installation brief

About this calculator

Bioethanol fireplaces are classed as unvented decorative appliances. Room sizing is governed by UL 1370 / ANSI Z21.11.2 (American) and EN 16647 (European). The calculator checks your installation against both standards plus Chama Design's conservative internal buffer.

Tool by Chama Design — bioethanol fireplace specialists, Melbourne. Results are for guidance only; final installation must comply with manufacturer instructions and local building codes.