If Heloc rate is 1-2%, it might make sense. When Heloc rate is similar or higher than mortgage rate, it does not make much sense.
A lot of credit cards offer 0% for 1-2 years. How can we get a few credit cards with very high credit limit? You can then refinance your home mortgage to a Heloc. Then use 0% credit card balance transfer to pay off Heloc. Later use Heloc to pay down credit cards. And repeat this cycle year after year. This way, you’ll pay 0% rate for your home loan
The key is get a few credit cards with 100k credit limit. Any trick to get high credit limit credit cards?
This is a trick that you need to remember the dates correctly. But it can be automated or reminded by email