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Join Date: Aug 2009
Location: Minneapolis
Posts: 5,783
Bikes: 2022 Salsa Beargrease Carbon Deore 11, 2020 Salsa Warbird GRX 600, 2020 Canyon Ultimate CF SLX disc 9.0 Di2, 2020 Catrike Eola, 2016 Masi cxgr, 2011, Felt F3 Ltd, 2010 Trek 2.1, 2009 KHS Flite 220
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Probably redundant with earlier posts, but if you are putting out watts, you need a fan unless your basement is really cold. My basement is usually 57 *F, 14°C and I ride in summer kit. I am chilly for the first couple of minutes, but unless it is super low-key (< 1.3 W/kg), i turn the fan on after 5-10 minutes.
If I have all the heat up "high" in my basement, then it's more like 62 °F 17 °C and then it's too warm to zwift without two fans.