Electric Heating Calculator – Find the Right Heater Size & Running Cost 🔥

Wondering what size electric heater you need for your home or office? Our Electric Heating Calculator helps you determine the ideal heater size (kW) and estimated running costs per month, ensuring you stay warm without overspending on energy bills.

How Does This Calculator Work?

The heater size recommendation is not random—it's based on real-world heating guidelines used by professionals. Industry calculations estimate the required kilowatts (kW) per square metre based on:
✔ Room size – Larger rooms need more heating power
✔ Insulation level – Poorly insulated homes lose more heat
✔ Ceiling height – Higher ceilings increase heating demand
✔ Preferred temperature – Warmer settings require more energy
✔ Electricity tariff – Enter your kWh cost for accurate running cost estimates

Why Use This Calculator?

✅ Instant Heating Estimate – No need for complicated calculations
✅ Helps You Choose the Right Heater – Avoid under or over-sizing your heating
✅ Energy Cost Awareness – See how much it will cost to run

👉 Simply enter your room details below and get an instant recommendation!

What Type of Room Are You Heating?
Measure the width and length of the room and multiply them together.
How Well Is the Room Insulated?
What Is the Ceiling Height?
Preferred Room Temperature?
Most people use electric heating for a few hours rather than all day.
Use your latest electricity bill to find your price per kWh.

Want to Keep a Copy of Your Estimate?
Enter your details below to receive your heating cost estimate by email. If you're interested in professional advice or an installation quote, an electrician can get in touch to discuss your options.

🔹 Get Your Estimate Sent to You
🔹 Speak to an Expert if Needed
🔹 No Obligation – Just Helpful Info

👉 Fill in the form below to receive your results!

Enter your email to receive your calculation results.
Enter your phone number if you’d like an electrician to contact you.