Question 1

Which is better, Stiebel Eltron CKT 20E or Envi HH3012T?

Accepted Answer

Based on our testing, the Stiebel Eltron CKT 20E scores higher overall at 8.5/10. The Stiebel Eltron CKT 20E scored 8.5/10 and the Envi HH3012T scored 7.8/10 in our Best Wall Mounted Heaters 2026 evaluation.

Question 2

Is the Stiebel Eltron CKT 20E worth it over the Envi HH3012T?

Accepted Answer

The Stiebel Eltron CKT 20E scores 8.5/10 while the Envi HH3012T scores 7.8/10. The Stiebel Eltron CKT 20E is our "Best Overall" pick in the Best Wall Mounted Heaters 2026 category.

Stiebel Eltron CKT 20E vs Envi HH3012T: Which to Buy?