Yesterday, we reported on an SEC communication that suggested Google is intending to bring ads to a whole host of smart and wearable devices in the near future – including, perhaps most notably, connected thermostats.

That letter seemed to point fairly clearly to Nest Labs, the smart home company which Google acquired for $3.2bn (£1.9m) earlier this year.

However, Nest CEO and founder Tony Fadell has struck back in a statement to Re/code, saying that ads wont be appearing on its smart thermostats or alarms.

“Nest is being run independently from the rest of Google, with a separate management team, brand and culture,” Fadell said. “For example, Nest has a paid-for business model, while Google has generally had an ads-supported business model. We have nothing against ads – after all, Nest does lots of advertising. We just don’t think ads are right for the Nest user experience.”

That backs up Nests initial statement when it was acquired in January, which said: “Our privacy policy clearly limits the use of customer information to providing and improving Nest’s products and services. We’ve always taken privacy seriously and this will not change.”