Nine boilers were stolen by burglars at a Kettering business.
Police are appealing for information following the burglary at PTS Plumbing in Baron Avenue, on Telford Way Industrial Estate.
The burglary happened on Friday, November 15, between 5.30pm and 10.15pm.
Thieves broke into the warehouse and stole nine new central heating boilers, which were still in their packaging.
The makes included Powermax, Logic, Worcester, Heatmax and Duotech.
Witnesses to the burglary, or anyone who has information about the stolen boilers, is asked to call Northamptonshire Police on 101. Alternatively, information can be given anonymously to Crimestoppers on 0800 555 111.