I have lived in several houses, including my current one, where there is a large radiator behind a curtain, and a window above the radiator.

My question is - just how bad is this for heat efficiency? Are there any good methods to improve the situation (apart from keeping the curtains open.)


  • Hello, and welcome to Home Improvement. Good question, but would you have a picture of the situation you could add to your question? And, you should probably take our tour so you'll know how best to participate here. Oct 17, 2019 at 14:44

1 Answer 1


It is terrible, shorten the curtains. This is like putting a towel over traditional vents. You are paying to warm up the curtains and probably getting a small fraction of the actual heat the radiator should be dispersing. But you will have warm curtains!

  • Thank you DMoore!
    – Omroth
    Oct 16, 2019 at 18:41

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