# Should every renovation add a spare 240‑V circuit (for HPWH/induction/EV) even if unused now?

**URL:** <https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968>\
**Category:** Trade Talk\
**Created:** [August 4, 2025, 3:17pm UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968 "2025-08-04T15:17:21Z")\
**Posts on this page:** 5\
**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, 3:17pm UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968/1 "2025-08-04T15:17:21Z")

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Should every renovation add a spare 240‑V circuit (for HPWH/induction/EV) even if unused now?

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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 13, 2025, 9:06pm UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968/2 "2025-08-13T21:06:08Z")

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Adding an extra 240V circuit during most renovations is a cheap and smart move.

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**Author:** ![Bobby\_Michael](https://home.renovation.reviews/user_avatar/home.renovation.reviews/bobby_michael/32/2057_2.png) [@Bobby\_Michael](https://home.renovation.reviews/u/Bobby_Michael)\
**Post date:** [August 13, 2025, 11:31pm UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968/3 "2025-08-13T23:31:13Z")

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Adding a spare 240-V circuit during renovations can be beneficial for future-proofing your home, especially considering the growing demand for electric vehicle (EV) charging, heat pump water heaters (HPWH), and induction cooking. Here’s why:

-Flexibility for future upgrades: Installing a spare 240-V circuit provides flexibility for future upgrades or additions, such as EV chargers or HPWH, without requiring costly electrical system modifications.  
-Cost savings: Adding a spare circuit during renovation can be more cost-effective than retrofitting later, which may involve tearing into walls or ceilings.

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**Author:** ![Theodore\_3456](https://home.renovation.reviews/user_avatar/home.renovation.reviews/theodore_3456/32/2821_2.png) [@Theodore\_3456](https://home.renovation.reviews/u/Theodore_3456)\
**Post date:** [August 14, 2025, 2:19am UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968/4 "2025-08-14T02:19:26Z")

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Yes adding a spare 240 V circuit is low-cost insurance: future-proofs for heat-pump water heaters, induction cooktops, or EV chargers, avoids messy retrofits, and often meets code for “readiness” in modern homes.

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**Author:** ![Tim\_curtis](https://home.renovation.reviews/user_avatar/home.renovation.reviews/tim_curtis/32/2766_2.png) [@Tim\_curtis](https://home.renovation.reviews/u/Tim_curtis)\
**Post date:** [August 14, 2025, 10:02am UTC](https://home.renovation.reviews/t/should-every-renovation-add-a-spare-240-v-circuit-for-hpwh-induction-ev-even-if-unused-now/19968/5 "2025-08-14T10:02:33Z")

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Yes

Running a spare 240 V circuit during renovations is cheap insurance against future HPWH, induction, or EV upgrades, avoiding costly panel work later.