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Electric Heating Calculator | Instant German Heater Sizing & Quote
Instant Electric Heating Calculator Use our free calculator to find the correct size German electric heater for any room in your home. Enter your room dimensions and get an instant recommendation based on our years of experience. Perfect for living rooms, bedrooms, offices and more.
FREE HEATING GUIDE WITH EACH E-MAILED QUOTE!
How to use this Calculator
🏡 Step 1 — Measure Your Rooms
Before you begin, measure the length and width of each room in metres. Check the ceiling height too.
- If your ceiling is the standard 2.4m, you can leave the default value as it is.
📝 Step 2 — Add Your First Room
- Click Add a Room.
- Choose the room type from the dropdown list.
- Enter the width, length, and height (only change height if it’s not 2.4m).
- Press Enter.
The calculator will automatically display:
- Your room dimensions
- The calculated room volume
- The recommended heater power
🔥 Step 3 — Choose Your Heater
- Select a heater model from the heater dropdown list. The standard heaters, 600mm high (S series) are highlighted in bold, we generally have these in stock. The other heaters , low level and Vertical heaters are less common and may not always be available ex stock. They can be supplied, as specials in our in our regular stock orders from Germany
- Click Add Room to include it in your quote. You’ll instantly see a summary and a picture of the heater you selected.
➕ Step 4 — Add More Rooms
- Click Add a Room again to enter another room.
- You can also review or edit the heaters you’ve already added.
🧾 Step 5 — Complete Your Quote
When you’ve added all your rooms:
- Click Finish Quote & Add Details
- Enter your contact information
You can then:
- View your quote
- Print your quote
- Email your quote
- Or Reset and start again
👍 Made a mistake?
If something doesn’t look right, don’t stress. Simply finish the steps, then press Reset at the end to start fresh.
💡 We’d Love Your Feedback
We’re always looking for ways to improve our calculator and make it even easier to use. If you have any suggestions or ideas, please email us at info@elsco.co.uk — we really appreciate your input.
What size electric heater do I need for my room?
Our calculator works out the correct heater size based on your room’s volume and heat‑loss requirements.
Are German electric heaters more efficient?
Yes. German clay‑core heaters store heat and release it slowly, giving consistent warmth with lower running costs.
Can I get a quote for multiple rooms?
Yes — simply add each room and the calculator will build a full quote automatically.