New stove that plugs into a normal wall outlet could be major gain for health and the climate

NEW YORK — For years, Ed Yaker, treasurer of a New York City co-op with nearly 1,500 units, and fellow board members have dealt with gas leaks. It can mean the gas at an entire building is shut off, leaving residents unable to use a stove for months until expensive repairs are made to gas lines.

So Yaker was all in when he learned of a California startup called Copper that was manufacturing an electric stove and oven that could simply be plugged into a regular outlet. The sleek, standard four-burner electric induction stove runs on 120 volts, meaning there is no need to pay a licensed electrician thousands of dollars to rewire to 240 volts, which many electric stoves require.

“In terms of, ‘Is this the way to go?’ It’s a no brainer,” Yaker said, demonstrating a quart of water that boiled in about two minutes. His apartment is full of books, many on energy and climate change, and the energy efficiency was a motivation, too.

Then there are the health benefits of cooking with electricity. Gas stoves, which 47 million Americans use, release pollutants like nitrogen dioxide that has been linked to asthma and cancer-causing benzene.

“You wouldn’t stand over the tailpipe of a car breathing in the exhaust from that car. And yet nearly 50 million households stand over a gas stove, breathing the same pollutants in their homes,” said Rob Jackson, an environmental scientist at Stanford University and lead author on a study on pollution from gas cooking.

“I had a gas stove until I started this line of research. Watching pollutant levels rise almost immediately every time I turned a burner on, or my oven on, was enough to get me to switch” to an electric stove, he said.

Induction stoves are also a way to address the considerable amount of climate change that comes from buildings — emissions from cooking, heating and cooling living spaces and hot water.

In the case of gas stoves, about half of the flame’s heat escapes into the room. Electric stoves by comparison can be up to 80% efficient. Of those, induction stoves come out on top with up to 90% efficiency in part because they only heat where the surface contacts the pot.

Just the presence of a gas stove in a home contributes to greenhouse gas emissions, even when it’s not turned on. Jackson’s team found gas stoves bleed methane — the main constituent of natural gas — when they’re off, from loose fittings and at connections between the stove and wall. The climate impact of leaky stoves…