The best replacement for r14 is e17. |
The best alternatives to r14 are rated as following: |
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Your alternative for r14 is not listed? Suggest! |
No companions for r14 have been suggested so far. |
You have in mind a companion for r14 and it is not yet here? Propose! |
r14 |
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e17 |
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r12 insulation |
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