# Can I keep my existing ducts for a variable‑speed heat pump without re‑sizing?

**URL:** <https://home.renovation.reviews/t/can-i-keep-my-existing-ducts-for-a-variable-speed-heat-pump-without-re-sizing/20073>\
**Category:** Trade Talk\
**Created:** [August 4, 2025, 3:26pm UTC](https://home.renovation.reviews/t/can-i-keep-my-existing-ducts-for-a-variable-speed-heat-pump-without-re-sizing/20073 "2025-08-04T15:26:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![reno\_questions](https://home.renovation.reviews/user_avatar/home.renovation.reviews/reno_questions/32/2758_2.png) [@reno\_questions](https://home.renovation.reviews/u/reno_questions)\
**Post date:** [August 4, 2025, 3:27pm UTC](https://home.renovation.reviews/t/can-i-keep-my-existing-ducts-for-a-variable-speed-heat-pump-without-re-sizing/20073/1 "2025-08-04T15:27:00Z")

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Can I keep my existing ducts for a variable‑speed heat pump without re‑sizing?

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**Author:** ![Tim\_Michael1](https://home.renovation.reviews/user_avatar/home.renovation.reviews/tim_michael1/32/6294_2.png) [@Tim\_Michael1](https://home.renovation.reviews/u/Tim_Michael1)\
**Post date:** [August 11, 2025, 6:47pm UTC](https://home.renovation.reviews/t/can-i-keep-my-existing-ducts-for-a-variable-speed-heat-pump-without-re-sizing/20073/2 "2025-08-11T18:47:07Z")

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Yeah, maybe, but only if your ducts are big enough for the new heat pump. These pumps push air slower to save energy, so small or leaky ducts can mess things up. It’s best to double-check with a duct test before you use the old ones again.

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**Author:** ![Joyboy03j](https://home.renovation.reviews/user_avatar/home.renovation.reviews/joyboy03j/32/2900_2.png) [@Joyboy03j](https://home.renovation.reviews/u/Joyboy03j)\
**Post date:** [August 23, 2025, 4:06pm UTC](https://home.renovation.reviews/t/can-i-keep-my-existing-ducts-for-a-variable-speed-heat-pump-without-re-sizing/20073/3 "2025-08-23T16:06:21Z")

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Yes you can depend on how it still works