Wis. Stat. § 631.83
The term "fire insurance" covers indemnity insurance for losses to property caused by many perils other than fire. Villa Clement v. National Union Fire Insurance Co. of Pittsburgh, 120 Wis. 2d 140, 353 N.W.2d 369 (Ct. App. 1984). Action by mortgagees of insured property against the insurer for paying the policy proceeds to the insured despite knowledge of the mortgagee's interest was not on the policy and was not barred by sub. (1) (a). Picus v. Citizens Security Mutual Insurance Co., 127 Wis. 2d 359, 379 N.W.2d 341 (Ct. App. 1985). The s. 893.57 statute of limitations governs the intentional tort of bad faith by an insurer. Warmka v. Hartland Cicero Mutual Insurance Co., 136 Wis. 2d 31, 400 N.W.2d 923 (1987). "Inception of the loss" in sub. (1) (a) means the date on which the loss occurs, not the discovery date. Borgen v. Economy Preferred Ins. Co., 176 Wis. 2d 498, 500 N.W.2d 176 (Ct. App. 1993). The failure of policyholders to give notice to an underinsurer of a settlement between the insured and the tortfeasor did not bar underinsured motorist coverage in the absence of prejudice to the insurer. There is a rebuttable presumption of prejudice when there is a lack of notice, with the burden on the insured to prove by the greater weight of the evidence that the insurer was not prejudiced. Ranes v. American Family Mutual Insurance Co., 219 Wis. 2d 49, 580 N.W.2d 197 (1998), 97-0441. Sub. (2) clearly and unambiguously excepts the time limitations for fire insurance claims from the application of s. 893.12. Wieting Funeral Home of Chilton, Inc. v. Meridian Mutual Insurance Co., 2004 WI App 218 277 Wis. 2d 274, 690 N.W.2d 442, 04-0461. An "agreement" by the parties to engage in an appraisal procedure under sub. (5) requires something more than a mere agreement to meet and discuss a dispute between the parties. Wieting Funeral Home of Chilton, Inc. v. Meridian Mutual Insurance Co., 2004 WI App 218, 277 Wis. 2d 274, 690 N.W.2d 442, 04-0461. The key word in sub. (1) (a) is not loss, but inception. In a claim arising from damage to corn yield resulting from vandalism to a corn planter, the inception of that loss was the moment overfertilized seeds were planted with the vandalized corn planter. Bronsteatter & Sons, Inc. v. American Growers Insurance Co., 2005 WI App 192, 286 Wis. 2d 782, 703 N.W.2d 757, 05-0115. Because all of the statutory language surrounding sub. (5), including the statute regulating arbitration and appraisals, applies only to first-party claims, sub. (5) tolls the period of limitation only as to claims by insureds against their insurer, not to claims by third parties against a tortfeasor's insurer. Thom v. OneBeacon Insurance Co., 2007 WI App 123, 300 Wis. 2d 607, 731 N.W.2d 657, 06-1617.