Purchase and installation required. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 18 months. For new accounts: Purchase APR is 26.99%. Minimum interest charge is $2.00. There is a $29 account activation fee. Subject to credit approval. See blueflamecomfort.com for details. Valid at participating ARS® Network locations. Not valid for third party, new construction, or commercial customers, with any other offers, discounts, or on prior sales. Call service center for details. Offer expires 1/31/2018. © 2018 American Residential Services LLC. All rights reserved.