You shouldn't really do that. You have to set up a loan/contribution between yourself and the LLC in order to keep them separate. You basically deed the house to the LLC as a member contribution if you have a discarded entity. The LLC will do its thing, collect rent and issue distribution to you. When you get it, you can do whatever you want. That will in turn draw down the contribution.
Better yet, record the house as a loan, you have to draw interest and get the money out of LLC that way. You don't just use the LLC's bank account to pay your HELOC.
Mixing HELOC proceeds for whatever you need whenever you need means you need to trace and track proceeds to determine interest deductibility. Interest on proceeds used to buy a rental is generally deductible, interest on proceeds used to pay your individual taxes is personal in nature and non-deductible.
There are specific rules on what order proceed "lots" are paid back per the interest tracing rules when mixed use is involved.
I recommend speaking with your tax pro and keeping them in the loop regarding this plan.
I forgot to mention I had read that we could do a promissory note on the LLC for tax purposes so we can write off the HELOC interest. Would solve the tax problem?