Republican members of Congress aren’t alone in feeling the heat from constituents at town hall meetings this week. California Democratic Sen. Dianne Feinstein will be the target at two Bay Area events over the next three days — and she won’t even be at one of them.

Demonstrators are expected to be outside Feinstein’s appearance at the Public Policy Institute of California Friday in San Francisco. And at 10 a.m. Sunday in east Oakland, several hundred anti-Trump activists will hold an “empty chair” town hall because Feinstein declined their invitation to attend in person.

It’s part of their running complaint that Feinstein, the former San Francisco mayor who was elected to the Senate in 1992, isn’t accessible enough.

Feinstein, who has not debated her Republican opponent in her last two U.S. Senate campaigns — state Sen. Dick Mountjoy in 2006 and Republican Elizabeth Emken in 2012 — has no plans for any town halls during Congress’ current recess.

She will appear Friday “in conversation” at the Public Policy Institute of California, where people were invited to email questions in advance to the moderator. There will also be a brief question-and-answer period during the event.

Protesters, many organized by the group Indivisible, plan to demonstrate outside Feinstein’s appearance Friday. The group, along with others, have organized actions outside Feinstein’s house and San Francisco office over the past several weeks, urging her to reject all of President Trump’s cabinet nominees and to hold a town hall. They also bombarded Feinstein’s office with tens of thousands of phone calls and emails, so much so that her state director said “our phone system is still broken by all the calls we are receiving.”

Feinstein has voted against the confirmation of seven of 14 Trump cabinet nominees so far.

Others bristled that Friday’s appearance in San Francisco was a ticketed event — even though tickets are free — and that there will only be 240 chairs in the room. By contrast, 900 people attended a town hall featuring Rep. Tom McClintock, R-Elk Grove, this week in Mariposa, one of three that McClintock held this month.

“The (Friday) event was only ticketed to ensure the room didn’t exceed capacity. No one has to pay to attend,” said Feinstein press secretary Ashley Schapitl. “The event will be webcast live so all of Sen. Feinstein’s nearly 39 million constituents can watch. The video will also be archived so her constituents can watch it at any time.”

But demonstrators say that’s not good enough in this era where constituents are demanding more face-to-face accountability. They want Feinstein to do a more traditional town hall.

(Sunday) “is not really a protest” of the senator, said Liz Kelley, a spokeswoman for Indivisible East Bay, which is organizing the event at Elmhurst Community Prep school, which will feature UC Berkeley linguistics professor George Lakoff. She said the 600 tickets sold out in 45 minutes. “It’s a demonstration of our request that she meet with us.”

Feinstein spokesman Schapitl said Feinstein will not do a town hall “this recess as it’s only one week. The Senate is in session Monday so Sen. Feinstein will be traveling back to Washington, D.C., this weekend.”

Joe Garofoli is The San Francisco Chronicle’s senior political writer. Email: jgarofoli@sfchronicle.com Twitter: @joegarofoli