MRCOOL 15 KW Modular Blower Heat Strip with Circuit Breaker - MHK15BMRCOOL 15 KW Modular Blower Heat Strip with Circuit Breaker MHK15B The 15 KW heat kit for MRCOOL Signature series Modular Blowers is a reliable source of backup heat for your home. A heat kit is designed to provide emergency electric heat so you are never left out in the cold. MHK15B is compatible with MRCOOL MMBV12BE, MMBV16BE and MMBV20BE. FEATURES: Provides heat for your MRCOOL modular blower MHK15B can provide 50,001 55,000 BTU of heat Circuit