Three quick checks for the first design iteration. They run in your browser, store nothing, and are meant for the first design iteration: deciding whether an envelope can carry the power, converting a resistance reading into a power figure, or estimating an energy saving. Results update as you type.

If you are new to the terms, the design guide explains watt density, cold zones and the sheath material limits that sit behind the verdicts below, and the glossary defines the vocabulary.

Calculator 1

Watt density (surface load)

Enter the rated power, the sheath diameter and either the heated length directly or the developed length with its cold zones. The tool returns the surface load on the heated sheath in W/cm² and compares it with the typical range for the medium you select, taken from our specifications by product group.

Surface load on the heated sheath
—W/cm²
Heated length
—
Heated surface area
—
Power per metre of heated tube
—
Typical design range for medium
—
0——
Enter values to see the verdict.
Calculator 2

Ohm's law: power, voltage, current, resistance

Fill in any two of the four values and leave the others blank; the tool computes the rest. Useful for sizing the supply for a given element, or for checking the expected cold resistance on the bench – the R field is the hot, nominal value.

Power P
—
Voltage U
—
Current I
—
Resistance R (hot, nominal)
—
Expected cold resistance (20 °C)
—
Power band at +5 % / −10 %
—
Enter two values.
The rated power of an element is defined at operating temperature. Resistance wire has a positive temperature coefficient, so the resistance you measure cold on the bench is a few per cent lower than the hot value used in the power calculation: typically 2–5 % for NiCr 80/20 at appliance temperatures; Fe–Cr–Al alloys usually change less – check the factor for the wire grade used. A cold ohm reading slightly below U²/P is therefore normal, not a fault. Adjust the percentage above to match the wire alloy and operating temperature of your element.
Calculator 3

Energy and CO₂ comparison

Estimate the annual effect of an appliance-level energy saving. A resistive element converts practically all of its input into heat, so savings come from the appliance: better thermal coupling, shorter heat-up, more accurate control or lower standby loss. Enter the saving you have measured or expect for the complete appliance. Results are per appliance per year; multiply by the installed fleet to see the programme effect.

Default 0.45 kg CO₂/kWh is an approximate figure for the Turkish grid; Replace it with the factor of your country or electricity supplier.
Annual consumption, existing system
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Annual consumption after the change
—
Energy saved per year
—
Cost saved per year
—
CO₂ avoided per year
—
Over a 10-year appliance life
—
—
For context: Balçık’s own rooftop solar plant (750 kWe AC / 960 kWp DC) produces about 1.2 GWh a year – roughly 540 t CO₂ at 0.45 kg/kWh; see sustainability, and energy efficiency for where appliance savings come from.

Disclaimer. Results are indicative, based on typical industry values and simplified assumptions; the final design, watt density and material selection are confirmed by Balçık engineering for each project.

Want the result checked? Copy the figures into the RFQ form together with your drawing. Our engineers will confirm the surface load, propose the sheath material and return a quotation.