New Year’s resolution No. 1: Lose the spare tire.
New Year’s resolution No. 2: Break a sweat.

Cross both off your list at Shape House, the new Larchmont spa where clients perspire their way to a slimmer silhouette.

After witnessing the weight loss effects of a sweat lodge firsthand (to the tune of 30 pounds), founder Sophie Chiche opened an upscale version in a quaint, incense-redolent craftsman house.

Go dressed to broil (leggings, long-sleeve T-shirt); a water bottle-bearing attendant leads you to a private room and wraps you in an infrared sleeping bag. During the 55-minute session, nap, check email, or watch TV (Netflix, Hulu) on a personal flat-screen.

With your face outside the hot zone (to avoid inhaling the toxins your body is releasing), you can expect a mellower sweat than that of a sauna.

It’s good to the last drip.

Shape House, 434 North Larchmont Boulevard, at Rosewood Avenue, Larchmont (323-467-3000 or shapehousela.com), $45 per session.

Photo: Courtesy of Shape House