u/Interesting_Level791

Is it need to upgrade the electrical panel to install mini splits?

My parents live in Ohio, house was built in the 90s. The central AC is very old and basically dying, and replacing the whole system is too expensive.

It's just two of them, so I’m thinking about just putting mini splits in their bedroom and the living room instead.

But I was talking to a friend and he mentioned that the house has an old 100 amps electrical panel, we might need to upgrade the whole house's electricity first. I don't know anything about electrical stuff, is this true? An electrical upgrade sounds like cost a lot of money.

Do mini splits always require a panel upgrade, or can they just use the existing electricity? Thank you.

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u/Interesting_Level791 — 4 days ago

Trying to figure out how much power my window AC actually uses.

One simple way I found:

Wattage = BTU ÷ EER

For example, if a 10,000 BTU unit with an EER of 10 would use about 1,000 watts per hour. Pretty handy for estimating electricity usage!

Has anyone done this before? Does it match your electric bill?

u/Interesting_Level791 — 8 days ago